RS-232/422/485 to Ethernet / Wireless Serial Device Servers
EKI-xxxx, ADAM-4502 and ADAM-457xSerial Device Servers
Advantech’s serial device servers are easy to install and configure. They also support wired and wireless networking and provide various operation modes to satisfy rigorous industrial automation needs. Our dual/single Ethernet wired serial device servers bring RS-232/422/485 to your LAN, with various choices of 1–16 serial ports and DIN-rail configurations to suit your rugged field environment. Our wireless solution employs cellular gateways to transparently integrate serial devices into a cellular
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RS-232/422/485 to Ethernet / Wireless Serial Device Servers
EKI-1511L


The EKI-1511 Series focus on the entry level device server market, providing an economic solution that is designed to connect RS-232 or RS-422/485 serial devices such as PLC, meters, sensors, and barcode readers to an IP-based Ethernet LAN. This allows nearly any device with a serial port to connect and share an Ethernet network, while also providing various operations such as COM port redirection (Virtual COMport), TCP server, TCP client, and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the servers, guaranteeing compatibility with legacy serial devices and enabling backward-compatibility with existing software. With TCP server, TCP client, and UDP modes, the EKI-1511 Series ensure compatibility in network software using a standard network API. Serial devices can communicate with other devices via peer-to-peer, thus eliminating the need for an intermediate host PC and software programming.
Features:
- Provides COM port redirection (Virtual COM), TCP, and UDP operation modes
- Baud rate: supports up to 230.4 Kbps
- Maximum of five hosts can access one serial port
- Maximum of 16 hosts accessed in TCP client mode
- Built-in 8-kV ESD protection for all serial signals
- Provides multiple configuration configuration methods including Windows utility, Telnet console, and web browser
- Supports 32/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server 2003/2008/2012, and Linux
- 1 x 10/100 Mbps Ethernet port
Specifications:
| Ethernet Communications | |
| Compatibility | IEEE 802.3, IEEE 802.3u |
| Speed | 10/100 Mbps |
| No. of Ports | 1 |
| Port Connector | 8-pin RJ45 |
| Protection | Built-in 2.25 k VDC magnetic isolation |
| Serial Communications | |
| Port Type | L: RS-232 |
| X: RS-422/485 | |
| No. of Ports | 1 |
| Port Connector | DB9 male |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Odd, Even, Space, Mark |
| Flow Control | XON/XOFF, RTS/CTS |
| Baud Rate | 300 bps ~ 230.4 kbps |
| Serial Signals |
RS-232: TxD, RxD, CTS, RTS, GND RS-422: TxD+, TxD-, RxD+, RxD-, GND RS-485 2-wire: Data+, Data-, GND RS-485 4-wire: TxD+, TxD-, RxD+, RxD- GND |
| Protection | Built-in 8 KV ESD for all signals |
| Software | |
| Driver Support |
32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server 2003/2008/2012, and Linux |
| Operation Modes | COM port redirection mode (Virtual COM) |
| TCP/UDP server (polling) mode TCP/UDP client (event handling) mode Pair connection (peer to peer) mode | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Management | SNMP MIB-II |
| Protocols | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, SMTP, ARP, NTP |
| Mechanics | |
| Dimensions (W x H x D) | 46 x 85.1 x 21.2 mm (1.81″ x 3.35′ x 0.83′) |
| Enclosure | Metal with solid mounting hardware |
| Mounting | DIN-rail, Wall |
| Weight | 0.127 kg |
| General | |
| LED Indicators |
System: Power, System Status/LAN: Speed, Link/Active Serial: Tx, Rx |
| Power Requirements | |
| Input | 9 ~ 36 VDC |
| Connector | Terminal block |
| Consumption | 1 W |
| Environment | |
| Operating Temperature |
-10 ~ 60 °C (14 ~ 140 °F) I’ models: -40 ~ 75 °C (-40 ~ 167 °F) |
| Storage Temperature | -40 ~ 85 °C (-40 ~ 185 °F) |
| Operating Humidity | 10 ~ 95% RH |
| Regulatory Approvals | |
| EMC | CE, FCC Part 15 Subpart B (Class A) |
Datasheet on EKI-1511L – 1-Port RS-232 Serial Device Server (pdf, opens in a new tab)
EKI-1511IL


The EKI-1511 Series focus on the entry level device server market, providing an economic solution that is designed to connect RS-232 or RS-422/485 serial devices such as PLC, meters, sensors, and barcode readers to an IP-based Ethernet LAN. This allows nearly any device with a serial port to connect and share an Ethernet network, while also providing various operations such as COM port redirection (Virtual COMport), TCP server, TCP client, and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the servers, guaranteeing compatibility with legacy serial devices and enabling backward-compatibility with existing software. With TCP server, TCP client, and UDP modes, the EKI-1511 Series ensure compatibility in network software using a standard network API. Serial devices can communicate with other devices via peer-to-peer, thus eliminating the need for an intermediate host PC and software programming.
Features:
- Provides COM port redirection (Virtual COM), TCP, and UDP operation modes
- Baud rate: supports up to 230.4 Kbps
- Maximum of five hosts can access one serial port
- Maximum of 16 hosts accessed in TCP client mode
- Built-in 8-kV ESD protection for all serial signals
- Provides multiple configuration configuration methods including Windows utility, Telnet console, and web browser
- Supports 32/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server 2003/2008/2012, and Linux
- 1 x 10/100 Mbps Ethernet port
- Supports wide operating temperature: -40 ~ 75 °C (-40 ~ 167 °F)
Specifications:
| Ethernet Communications | |
| Compatibility | IEEE 802.3, IEEE 802.3u |
| Speed | 10/100 Mbps |
| No. of Ports | 1 |
| Port Connector | 8-pin RJ45 |
| Protection | Built-in 2.25 k VDC magnetic isolation |
| Serial Communications | |
| Port Type | L: RS-232 |
| X: RS-422/485 | |
| No. of Ports | 1 |
| Port Connector | DB9 male |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Odd, Even, Space, Mark |
| Flow Control | XON/XOFF, RTS/CTS |
| Baud Rate | 300 bps ~ 230.4 kbps |
| Serial Signals |
RS-232: TxD, RxD, CTS, RTS, GND RS-422: TxD+, TxD-, RxD+, RxD-, GND RS-485 2-wire: Data+, Data-, GND RS-485 4-wire: TxD+, TxD-, RxD+, RxD- GND |
| Protection | Built-in 8 KV ESD for all signals |
| Software | |
| Driver Support |
32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server 2003/2008/2012, and Linux |
| Operation Modes | COM port redirection mode (Virtual COM) |
| TCP/UDP server (polling) mode TCP/UDP client (event handling) mode Pair connection (peer to peer) mode | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Management | SNMP MIB-II |
| Protocols | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, SMTP, ARP, NTP |
| Mechanics | |
| Dimensions (W x H x D) | 46 x 85.1 x 21.2 mm (1.81″ x 3.35′ x 0.83′) |
| Enclosure | Metal with solid mounting hardware |
| Mounting | DIN-rail, Wall |
| Weight | 0.127 kg |
| General | |
| LED Indicators |
System: Power, System Status/LAN: Speed, Link/Active Serial: Tx, Rx |
| Power Requirements | |
| Input | 9 ~ 36 VDC |
| Connector | Terminal block |
| Consumption | 1 W |
| Environment | |
| Operating Temperature |
-10 ~ 60 °C (14 ~ 140 °F) I’ models: -40 ~ 75 °C (-40 ~ 167 °F) |
| Storage Temperature | -40 ~ 85 °C (-40 ~ 185 °F) |
| Operating Humidity | 10 ~ 95% RH |
| Regulatory Approvals | |
| EMC | CE, FCC Part 15 Subpart B (Class A) |
Datasheet on EKI-1511IL – 1-Port RS-232 Serial Device Server with Wide Operating Temperature (pdf, opens in a new tab)
EKI-1511X
1-port RS-422/485 Serial Device Server


The EKI-1511 Series focus on the entry level device server market, providing an economic solution that is designed to connect RS-232 or RS-422/485 serial devices such as PLC, meters, sensors, and barcode readers to an IP-based Ethernet LAN. This allows nearly any device with a serial port to connect and share an Ethernet network, while also providing various operations such as COM port redirection (Virtual COMport), TCP server, TCP client, and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the servers, guaranteeing compatibility with legacy serial devices and enabling backward-compatibility with existing software. With TCP server, TCP client, and UDP modes, the EKI-1511 Series ensure compatibility in network software using a standard network API. Serial devices can communicate with other devices via peer-to-peer, thus eliminating the need for an intermediate host PC and software programming.
Features:
- 1 x 10/100 Mbps Ethernet port
- Provides COM port redirection (Virtual COM), TCP, and UDP operation modes
- Baud rate: supports up to 230.4 Kbps
- Maximum of five hosts can access one serial port
- Maximum of 16 hosts accessed in TCP client mode
- Built-in 8-kV ESD protection for all serial signals
- Provides multiple configuration configuration methods including Windows utility, Telnet console, and web browser
- Supports 32/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server 2003/2008/2012, and Linux
- “I” models support a wide operating temperature
Specifications:
| Ethernet Communications | |
| Compatibility | IEEE 802.3, IEEE 802.3u |
| Speed | 10/100 Mbps |
| No. of Ports | 1 |
| Port Connector | 8-pin RJ45 |
| Protection | Built-in 2.25 k VDC magnetic isolation |
| Serial Communications | |
| Port Type | L: RS-232 |
| X: RS-422/485 | |
| No. of Ports | 1 |
| Port Connector | DB9 male |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Odd, Even, Space, Mark |
| Flow Control | XON/XOFF, RTS/CTS |
| Baud Rate | 300 bps ~ 230.4 kbps |
| Serial Signals |
RS-232: TxD, RxD, CTS, RTS, GND RS-422: TxD+, TxD-, RxD+, RxD-, GND RS-485 2-wire: Data+, Data-, GND RS-485 4-wire: TxD+, TxD-, RxD+, RxD- GND |
| Protection | Built-in 8 KV ESD for all signals |
| Software | |
| Driver Support |
32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server 2003/2008/2012, and Linux |
| Operation Modes | COM port redirection mode (Virtual COM) |
| TCP/UDP server (polling) mode TCP/UDP client (event handling) mode Pair connection (peer to peer) mode | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Management | SNMP MIB-II |
| Protocols | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, SMTP, ARP, NTP |
| Mechanics | |
| Dimensions (W x H x D) | 46 x 85.1 x 21.2 mm (1.81″ x 3.35′ x 0.83′) |
| Enclosure | Metal with solid mounting hardware |
| Mounting | DIN-rail, Wall |
| Weight | 0.127 kg |
| General | |
| LED Indicators |
System: Power, System Status/LAN: Speed, Link/Active Serial: Tx, Rx |
| Power Requirements | |
| Input | 9 ~ 36 VDC |
| Connector | Terminal block |
| Consumption | 1 W |
| Environment | |
| Operating Temperature |
-10 ~ 60 °C (14 ~ 140 °F) I’ models: -40 ~ 75 °C (-40 ~ 167 °F) |
| Storage Temperature | -40 ~ 85 °C (-40 ~ 185 °F) |
| Operating Humidity | 10 ~ 95% RH |
| Regulatory Approvals | |
| EMC | CE, FCC Part 15 Subpart B (Class A) |
Datasheet on EKI-1511X – 1-port RS-422/485 Serial Device Server (pdf, opens in a new tab)
EKI-1521
1-port RS-232/422/485 Serial Device Server

EKI-1521, EKI-1522 and EKI-1524 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. EKI-1521, EKI-1522 and EKI-1524 are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. EKI-1521, EKI-1522 and EKI-1524 provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1521, EKI-1522 and EKI-1524, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI- 1521, EKI-1522 and EKI-1524 ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Supports up to 921.6 kbps, and any baud rate setting
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server2003/2008/2012/2016, and Linux
- Automatic RS-485 data flow control
- Supports line to line 2 KV, line to ground 4 KV surge protection
Specifications:
| Ethernet Communications | |
| Compatibility | IEEE 802.3, IEEE 802.3u |
| Speed | 10/100 Mbps |
| No. of Ports | 2 |
| Port Connector | 8-pin RJ45 |
| Protection | Built-in 2.25 k VDC magnetic isolation |
| Serial Communications | |
| Port Type | RS-232/422/485-2w/485-4w, software selectable (EKI-1524CI-CE supports RS-422/485 only) |
| No. of Ports |
EKI-1521: 1 EKI-1522: 2 EKI-1524: 4 |
| Port Connector | DB9 male |
| EKI-1521CI-DE; EKI-1522CI-DE also provide Terminal Block | |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Odd, Even, Space, Mark |
| Flow Control | XON/XOFF, RTS/CTS |
| Baud Rate | 50 bps ~ 921.6 kbps, any baud rate setting |
| Serial Signals | [CE Version] |
| RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR RS-422: TxD+, TxD-, RxD+, RxD-, GND | |
| RS-485 2-wire: Data+, Data-, GND | |
| [DE Version] | |
| DB9: | |
| RS-232 isolation: TxD, RxD, CTS, RTS, GND | |
| RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR | |
| Terminal Block ( From top to bottom): RS-422: GND, RxD-, RxD+, TxD+, TxD- RS-485 2-wire: GND, NC, NC, TxD+, TxD- | |
| RS-485 4-wire: GND, RxD-, RxD+, TxD+, TxD- | |
| Protection | Built-in 15 KV ESD for all signals |
| Software | |
| Driver Support | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Modes | COM port redirection mode (Virtual COM) |
| TCP/UDP server (polling) mode | |
| TCP/UDP client (event handling) mode | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Pair connection (peer to peer) mode | |
| Management | SNMP MIB-II |
| Protocols | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, |
| SMTP, ARP, NTP | |
| Mechanics | |
| Dimensions (W x H x D) | EKI-1521/I-CE; EKI-1521CI-DE; EKI-1522/I-CE; |
| EKI-1522CI-DE: 30 x 140 x 95 mm (1.18″ x 5.51″ x 3.74″) | |
| EKI-1524/CI/I-CE: 42 x 140 x 95 mm (1.65″ x 5.51″ x 3.74″) | |
| Enclosure | Metal with solid mounting hardware |
| Mounting | DIN-rail, Wall |
| Weight | EKI-1521/I-CE; EKI-1522/I-CE: 0.432Kg |
| EKI-1521CI-DE; EKI-1522CI-DE: 0.45kg | |
| EKI-1524/CI/I-CE: 0.537Kg | |
| IP Rating | IP30 |
| General | |
| LED Indicators | System: Power, System Status/LAN: Speed, Link/Active Serial: Tx, Rx |
| Power Requirements | |
| Input | 12 ~ 48 VDC, redundant dual inputs |
| Connector | Terminal block |
| Consumption | EKI-1521: 3.2 W |
| EKI-1522: 3.2 W | |
| EKI-1524: 4.1 W | |
| Environment | |
| Operating Temperature | EKI-1521/EKI-1522/EKI-1524: -10 ~ 60 °C (14 ~ 140 °F) |
| ‘CI & I’ models: -40 ~ 80 °C (-40 ~ 176 °F) | |
| Storage Temperature | -40 ~ 85 °C (-40 ~ 185 °F) |
| Operating Humidity | 10 ~ 95% RH |
| Regulatory Approvals | |
| EMC | CE, FCC Part 15 Subpart B (Class A) |
| Hazardous location | UL/cUL (Class I, Division 2, Groups A, B, C and D), ATEX (Zone 2 |
| Ex nA nC IIC T4 Gc) | |
| Port to Port Isolation (‘CI’ models) | |
| Serial to Ethernet | 2.25 k VDC |
| Serial to Power | 2 k VDC |
| Ethernet to Power | 2.25 k VDC |
Datasheet onEKI-1521 – 1-port RS-232/422/485 Serial Device Server (pdf, opens in a new tab)
EKI-1521I
1-port RS-232/422/485 Serial Device Server – Wide Temperature

EKI-1521, EKI-1522 and EKI-1524 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. EKI-1521, EKI-1522 and EKI-1524 are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. EKI-1521, EKI-1522 and EKI-1524 provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1521, EKI-1522 and EKI-1524, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI- 1521, EKI-1522 and EKI-1524 ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Supports up to 921.6 kbps, and any baud rate setting
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server2003/2008/2012/2016, and Linux
- Automatic RS-485 data flow control
- Supports line to line 2 KV, line to ground 4 KV surge protection
Specifications:
| Ethernet Communications | |
| Compatibility | IEEE 802.3, IEEE 802.3u |
| Speed | 10/100 Mbps |
| No. of Ports | 2 |
| Port Connector | 8-pin RJ45 |
| Protection | Built-in 2.25 k VDC magnetic isolation |
| Serial Communications | |
| Port Type | RS-232/422/485-2w/485-4w, software selectable (EKI-1524CI-CE supports RS-422/485 only) |
| No. of Ports |
EKI-1521: 1 EKI-1522: 2 EKI-1524: 4 |
| Port Connector | DB9 male |
| EKI-1521CI-DE; EKI-1522CI-DE also provide Terminal Block | |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Odd, Even, Space, Mark |
| Flow Control | XON/XOFF, RTS/CTS |
| Baud Rate | 50 bps ~ 921.6 kbps, any baud rate setting |
| Serial Signals | [CE Version] |
| RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR RS-422: TxD+, TxD-, RxD+, RxD-, GND | |
| RS-485 2-wire: Data+, Data-, GND | |
| [DE Version] | |
| DB9: | |
| RS-232 isolation: TxD, RxD, CTS, RTS, GND | |
| RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR | |
| Terminal Block ( From top to bottom): RS-422: GND, RxD-, RxD+, TxD+, TxD- RS-485 2-wire: GND, NC, NC, TxD+, TxD- | |
| RS-485 4-wire: GND, RxD-, RxD+, TxD+, TxD- | |
| Protection | Built-in 15 KV ESD for all signals |
| Software | |
| Driver Support | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Modes | COM port redirection mode (Virtual COM) |
| TCP/UDP server (polling) mode | |
| TCP/UDP client (event handling) mode | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Pair connection (peer to peer) mode | |
| Management | SNMP MIB-II |
| Protocols | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, |
| SMTP, ARP, NTP | |
| Mechanics | |
| Dimensions (W x H x D) | EKI-1521/I-CE; EKI-1521CI-DE; EKI-1522/I-CE; |
| EKI-1522CI-DE: 30 x 140 x 95 mm (1.18″ x 5.51″ x 3.74″) | |
| EKI-1524/CI/I-CE: 42 x 140 x 95 mm (1.65″ x 5.51″ x 3.74″) | |
| Enclosure | Metal with solid mounting hardware |
| Mounting | DIN-rail, Wall |
| Weight | EKI-1521/I-CE; EKI-1522/I-CE: 0.432Kg |
| EKI-1521CI-DE; EKI-1522CI-DE: 0.45kg | |
| EKI-1524/CI/I-CE: 0.537Kg | |
| IP Rating | IP30 |
| General | |
| LED Indicators | System: Power, System Status/LAN: Speed, Link/Active Serial: Tx, Rx |
| Power Requirements | |
| Input | 12 ~ 48 VDC, redundant dual inputs |
| Connector | Terminal block |
| Consumption | EKI-1521: 3.2 W |
| EKI-1522: 3.2 W | |
| EKI-1524: 4.1 W | |
| Environment | |
| Operating Temperature | EKI-1521/EKI-1522/EKI-1524: -10 ~ 60 °C (14 ~ 140 °F) |
| ‘CI & I’ models: -40 ~ 80 °C (-40 ~ 176 °F) | |
| Storage Temperature | -40 ~ 85 °C (-40 ~ 185 °F) |
| Operating Humidity | 10 ~ 95% RH |
| Regulatory Approvals | |
| EMC | CE, FCC Part 15 Subpart B (Class A) |
| Hazardous location | UL/cUL (Class I, Division 2, Groups A, B, C and D), ATEX (Zone 2 |
| Ex nA nC IIC T4 Gc) | |
| Port to Port Isolation (‘CI’ models) | |
| Serial to Ethernet | 2.25 k VDC |
| Serial to Power | 2 k VDC |
| Ethernet to Power | 2.25 k VDC |
Datasheet on EKI-1521I- 1-port RS-232/422/485 Serial Device Server – Wide Temperature (pdf, opens in a new tab)
EKI-1521CI
1-port RS-232/422/485 Serial Device Server – Wide Temperature

EKI-1521, EKI-1522 and EKI-1524 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. EKI-1521, EKI-1522 and EKI-1524 are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. EKI-1521, EKI-1522 and EKI-1524 provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1521, EKI-1522 and EKI-1524, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI- 1521, EKI-1522 and EKI-1524 ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Supports up to 921.6 kbps, and any baud rate setting
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server2003/2008/2012/2016, and Linux
- Automatic RS-485 data flow control
- Supports line to line 2 KV, line to ground 4 KV surge protection
Specifications:
| Ethernet Communications | |
| Compatibility | IEEE 802.3, IEEE 802.3u |
| Speed | 10/100 Mbps |
| No. of Ports | 2 |
| Port Connector | 8-pin RJ45 |
| Protection | Built-in 2.25 k VDC magnetic isolation |
| Serial Communications | |
| Port Type | RS-232/422/485-2w/485-4w, software selectable (EKI-1524CI-CE supports RS-422/485 only) |
| No. of Ports |
EKI-1521: 1 EKI-1522: 2 EKI-1524: 4 |
| Port Connector | DB9 male |
| EKI-1521CI-DE; EKI-1522CI-DE also provide Terminal Block | |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Odd, Even, Space, Mark |
| Flow Control | XON/XOFF, RTS/CTS |
| Baud Rate | 50 bps ~ 921.6 kbps, any baud rate setting |
| Serial Signals | [CE Version] |
| RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR RS-422: TxD+, TxD-, RxD+, RxD-, GND | |
| RS-485 2-wire: Data+, Data-, GND | |
| [DE Version] | |
| DB9: | |
| RS-232 isolation: TxD, RxD, CTS, RTS, GND | |
| RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR | |
| Terminal Block ( From top to bottom): RS-422: GND, RxD-, RxD+, TxD+, TxD- RS-485 2-wire: GND, NC, NC, TxD+, TxD- | |
| RS-485 4-wire: GND, RxD-, RxD+, TxD+, TxD- | |
| Protection | Built-in 15 KV ESD for all signals |
| Software | |
| Driver Support | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Modes | COM port redirection mode (Virtual COM) |
| TCP/UDP server (polling) mode | |
| TCP/UDP client (event handling) mode | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Pair connection (peer to peer) mode | |
| Management | SNMP MIB-II |
| Protocols | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, |
| SMTP, ARP, NTP | |
| Mechanics | |
| Dimensions (W x H x D) | EKI-1521/I-CE; EKI-1521CI-DE; EKI-1522/I-CE; |
| EKI-1522CI-DE: 30 x 140 x 95 mm (1.18″ x 5.51″ x 3.74″) | |
| EKI-1524/CI/I-CE: 42 x 140 x 95 mm (1.65″ x 5.51″ x 3.74″) | |
| Enclosure | Metal with solid mounting hardware |
| Mounting | DIN-rail, Wall |
| Weight | EKI-1521/I-CE; EKI-1522/I-CE: 0.432Kg |
| EKI-1521CI-DE; EKI-1522CI-DE: 0.45kg | |
| EKI-1524/CI/I-CE: 0.537Kg | |
| IP Rating | IP30 |
| General | |
| LED Indicators | System: Power, System Status/LAN: Speed, Link/Active Serial: Tx, Rx |
| Power Requirements | |
| Input | 12 ~ 48 VDC, redundant dual inputs |
| Connector | Terminal block |
| Consumption | EKI-1521: 3.2 W |
| EKI-1522: 3.2 W | |
| EKI-1524: 4.1 W | |
| Environment | |
| Operating Temperature | EKI-1521/EKI-1522/EKI-1524: -10 ~ 60 °C (14 ~ 140 °F) |
| ‘CI & I’ models: -40 ~ 80 °C (-40 ~ 176 °F) | |
| Storage Temperature | -40 ~ 85 °C (-40 ~ 185 °F) |
| Operating Humidity | 10 ~ 95% RH |
| Regulatory Approvals | |
| EMC | CE, FCC Part 15 Subpart B (Class A) |
| Hazardous location | UL/cUL (Class I, Division 2, Groups A, B, C and D), ATEX (Zone 2 |
| Ex nA nC IIC T4 Gc) | |
| Port to Port Isolation (‘CI’ models) | |
| Serial to Ethernet | 2.25 k VDC |
| Serial to Power | 2 k VDC |
| Ethernet to Power | 2.25 k VDC |
Datasheet on EKI-1521CI – 1-port RS-422/485 Serial Device Server – Isolation, Wide Temperature (pdf, opens in a new tab)
EKI-1521I-SC
1-port Device Server with Fiber and WT

The EKI-1521I-SC feature one Ethernet port with RJ45 connector and one fiber port with SC connector to provide a redundant network mechanism that guarantees Ethernet network reliability. These serial device servers are designed to connect RS-232/422/485 serial devices such as PLC, meters, sensors, and barcode readers to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network, while also providing various operations such as COM port redirection (Virtual COMport), TCP server, TCP client, and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the servers, guaranteeing compatibility with legacy serial devices and enabling backward-compatibility with existing software. With TCP server, TCP client, and UDP modes, the EKI- 1521 ensure compatibility in network software using a standard network API. Moreover, serial devices can be made communicate with other devices via peer-to-peer, thus eliminating the need for an intermediate host PC and software programming.
Features:
- 1 x 10/100 Mbps Ethernet ports and 1 x 100 Mbps Fiber port for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP, and UDP operation modes
- Supports up to 6 kbps and any baud rate setting
- Allows a maximum of 5 hosts to access one serial port
- Allows a maximum of 16 hosts to be accessed in TCP client mode
- Built-in 15-kV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and web browser
- Supports 32/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server 2003/2008/2012, and Linux
- Automatic RS-485 direction control
- Supports line-to-line (2 kV) and line-to-ground (4 kV) surge protection
- Support a wide operating temperature
Specifications:
| Ethernet Communications | |
| Compatibility | IEEE 802.3, IEEE 802.3u |
| Speed | 10/100Base-T(X), 100Base-FX |
| Port | 1 x RJ45 (Ethernet) |
| 1 x SC single mode Fiber | |
| Protection | Built-in 2.25 k VDC magnetic isolation |
| Serial Communications | |
| Port Type | RS-232/422/485-2w/485-4w, software selectable |
| No. of Ports | 1 |
| Port Connector | DB9 male |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Odd, Even, Space, Mark |
| Flow Control | XON/XOFF, RTS/CTS |
| Baud Rate | 50 bps ~ 921.6 kbps, any baud rate setting |
| Serial Signals | RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR |
| RS-422: TxD+, TxD-, RxD+, RxD-, GND | |
| RS-485 2-wire: Data+, Data-, GND | |
| RS-485 4-wire: TxD+, TxD-, RxD+, RxD-, GND | |
| Protection | Built-in 15 KV ESD for all signals |
| Software | |
| Driver Support | 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, |
| Windows Server 2003/2008/2012, and Linux | |
| Operation Modes | COM port redirection mode (Virtual COM) |
| TCP/UDP server (polling) mode TCP/UDP client (event handling) mode Pair connection (peer to peer) mode | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Management | SNMP MIB-II |
| Protocols | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, SMTP, ARP, NTP |
| Mechanics | |
| Dimensions (W x H x D) | 30 x 140 x 95.3 mm (1.18″ x 5.51″ x 3.75″) |
| Enclosure | Metal with solid mounting hardware |
| Mounting | DIN-rail, Wall |
| Weight | 0.42Kg |
| General | |
| Reboot Trigger | Built-in WDT (watchdog timer) |
| LED Indicators | System: Power, System Status/LAN: Speed, Link/Active |
| Fiber: Link/Active Serial: Tx, Rx | |
| Power Requirements | |
| Input | 12 ~ 48 VDC, redundant dual inputs |
| Connector | Terminal block |
| Consumption | 4W |
| Environment | |
| Operating Temperature ‘I’ models: -40 ~ 75 °C (-40 ~ 167 °F) | |
| Storage Temperature | -40 ~ 85 °C (-40 ~ 185 °F) |
| Operating Humidity | 10 ~ 95% RH |
| Regulatory Approvals | |
| EMC | CE, FCC Part 15 Subpart B (Class A) |
| Hazardous location | UL |
Datasheet on EKI-1521I-SC – 1-port Device Server with Fiber and WT (pdf, opens in a new tab)
EKI-1522
2-port RS-232/422/485 Serial Device Server

EKI-1521, EKI-1522 and EKI-1524 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. EKI-1521, EKI-1522 and EKI-1524 are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. EKI-1521, EKI-1522 and EKI-1524 provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1521, EKI-1522 and EKI-1524, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI- 1521, EKI-1522 and EKI-1524 ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Supports up to 921.6 kbps, and any baud rate setting
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server2003/2008/2012/2016, and Linux
- Automatic RS-485 data flow control
- Supports line to line 2 KV, line to ground 4 KV surge protection
Specifications:
| Ethernet Communications | |
| Compatibility | IEEE 802.3, IEEE 802.3u |
| Speed | 10/100 Mbps |
| No. of Ports | 2 |
| Port Connector | 8-pin RJ45 |
| Protection | Built-in 2.25 k VDC magnetic isolation |
| Serial Communications | |
| Port Type | RS-232/422/485-2w/485-4w, software selectable (EKI-1524CI-CE supports RS-422/485 only) |
| No. of Ports |
EKI-1521: 1 EKI-1522: 2 EKI-1524: 4 |
| Port Connector | DB9 male |
| EKI-1521CI-DE; EKI-1522CI-DE also provide Terminal Block | |
| Data Bits | 5, 6, 7, 8 |
| Stop Bits | 1, 1.5, 2 |
| Parity | None, Odd, Even, Space, Mark |
| Flow Control | XON/XOFF, RTS/CTS |
| Baud Rate | 50 bps ~ 921.6 kbps, any baud rate setting |
| Serial Signals | [CE Version] |
| RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR RS-422: TxD+, TxD-, RxD+, RxD-, GND | |
| RS-485 2-wire: Data+, Data-, GND | |
| [DE Version] | |
| DB9: | |
| RS-232 isolation: TxD, RxD, CTS, RTS, GND | |
| RS-232: TxD, RxD, CTS, RTS, DCD, RI, GND, DTR, DSR | |
| Terminal Block ( From top to bottom): RS-422: GND, RxD-, RxD+, TxD+, TxD- RS-485 2-wire: GND, NC, NC, TxD+, TxD- | |
| RS-485 4-wire: GND, RxD-, RxD+, TxD+, TxD- | |
| Protection | Built-in 15 KV ESD for all signals |
| Software | |
| Driver Support | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Modes | COM port redirection mode (Virtual COM) |
| TCP/UDP server (polling) mode | |
| TCP/UDP client (event handling) mode | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Pair connection (peer to peer) mode | |
| Management | SNMP MIB-II |
| Protocols | ICMP, IP, TCP, UDP, BOOTP, DHCP, Auto IP, SNMP, HTTP, DNS, |
| SMTP, ARP, NTP | |
| Mechanics | |
| Dimensions (W x H x D) | EKI-1521/I-CE; EKI-1521CI-DE; EKI-1522/I-CE; |
| EKI-1522CI-DE: 30 x 140 x 95 mm (1.18″ x 5.51″ x 3.74″) | |
| EKI-1524/CI/I-CE: 42 x 140 x 95 mm (1.65″ x 5.51″ x 3.74″) | |
| Enclosure | Metal with solid mounting hardware |
| Mounting | DIN-rail, Wall |
| Weight | EKI-1521/I-CE; EKI-1522/I-CE: 0.432Kg |
| EKI-1521CI-DE; EKI-1522CI-DE: 0.45kg | |
| EKI-1524/CI/I-CE: 0.537Kg | |
| IP Rating | IP30 |
| General | |
| LED Indicators | System: Power, System Status/LAN: Speed, Link/Active Serial: Tx, Rx |
| Power Requirements | |
| Input | 12 ~ 48 VDC, redundant dual inputs |
| Connector | Terminal block |
| Consumption | EKI-1521: 3.2 W |
| EKI-1522: 3.2 W | |
| EKI-1524: 4.1 W | |
| Environment | |
| Operating Temperature | EKI-1521/EKI-1522/EKI-1524: -10 ~ 60 °C (14 ~ 140 °F) |
| ‘CI & I’ models: -40 ~ 80 °C (-40 ~ 176 °F) | |
| Storage Temperature | -40 ~ 85 °C (-40 ~ 185 °F) |
| Operating Humidity | 10 ~ 95% RH |
| Regulatory Approvals | |
| EMC | CE, FCC Part 15 Subpart B (Class A) |
| Hazardous location | UL/cUL (Class I, Division 2, Groups A, B, C and D), ATEX (Zone 2 |
| Ex nA nC IIC T4 Gc) | |
| Port to Port Isolation (‘CI’ models) | |
| Serial to Ethernet | 2.25 k VDC |
| Serial to Power | 2 k VDC |
| Ethernet to Power | 2.25 k VDC |
Datasheet on EKI-1522 – 2-port RS-232/422/485 Serial Device Server (pdf, opens in a new tab)
EKI-1522CI
2-port RS-422/485 Serial Device Server – Isolation, Wide Temperature

EKI-1521, EKI-1522 and EKI-1524 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. EKI-1521, EKI-1522 and EKI-1524 are serial device servers that connect RS-422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. EKI-1521, EKI-1522 and EKI-1524 provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1521, EKI-1522 and EKI-1524, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI-1521, EKI-1522 and EKI-1524 ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Supports line to line 2 KV, line to ground 4 KV surge protection
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Supports up to 921.6 kbps, and any baud rate setting
- Built-in 15 KV ESD protection for all serial signals
- Provides multiple configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server2003/2008/2012/2016, and Linux
- Automatic RS-485 data flow control
Specifications:
| Part Number | EKI-1522CI-CE |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4), EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1 |
| Shock | IEC 60068-2-27 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3 , 802.3ab , 802.3u |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Operating Range) | -40 ~ 75°C (-40 ~ 167°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 36.6 x 140 x 95 mm (1.44″ x 5.51″ x 3.74″) |
| Enclosure (Metal) | Metal with solid mounting hardware |
| Weight | 480g |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | COM port redirection mode (Virtual COM), TCP/UDP server (polling) mode, TCP/UDP client (event handling) mode, Pair connection |
Datasheet on EKI-1522CI – 2-port RS-422/485 Serial Device Server – Isolation, Wide Temperature (pdf, opens in a new tab)
EKI-1524
4-port RS-232/422/485 Serial Device Server

EKI-1521, EKI-1522 and EKI-1524 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. EKI-1521, EKI-1522 and EKI-1524 are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. EKI-1521, EKI-1522 and EKI-1524 provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1521, EKI-1522 and EKI-1524, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI- 1521, EKI-1522 and EKI-1524 ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Supports up to 921.6 kbps, and any baud rate setting
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server2003/2008/2012/2016, and Linux
- Automatic RS-485 data flow control
- Supports line to line 2 KV, line to ground 4 KV surge protection
Specifications:
| Part Number | EKI-1524-CE |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4), EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1 |
| Shock | IEC 60068-2-27 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3 , 802.3ab , 802.3u |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 male |
| Serial Port Number | 4 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14 ~ 140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (-4 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 42 x 140 x 95 mm (1.65″ x 5.51″ x 3.74″) |
| Enclosure (Metal) | Metal with solid mounting hardware |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 537g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 4.1W |
| Power Input (DC) | 12 ~ 48 VDC |
| Power Operating Current | 0.7A @ 24V |
| Redundant Dual Inputs | Yes |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | 32-bit/64-bit windows XP/7/8/8.1/10, Windows Server 2003/2008/ 2008 R2/2012/2012 R2/2016 and Linux |
| Operation Mode | COM port redirection mode (Virtual COM), TCP/UDP server (polling) mode, TCP/UDP client (event handling) mode, |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1524 – 4-port RS-232/422/485 Serial Device Server(pdf, opens in a new tab)
EKI-1524I
4-port RS-232/422/485 Serial Device Server – Wide Temperature

EKI-1521, EKI-1522 and EKI-1524 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. EKI-1521, EKI-1522 and EKI-1524 are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. EKI-1521, EKI-1522 and EKI-1524 provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1521, EKI-1522 and EKI-1524, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI-1521, EKI-1522 and EKI-1524 ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Supports up to 921.6 kbps, and any baud rate setting
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1/10, Windows Server2003/2008/2012/2016, and Linux
- Automatic RS-485 data flow control
- Supports line to line 2 KV, line to ground 4 KV surge protection
Specifications:
| Part Number | EKI-1524I-CE |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4), EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1,UL 62368 |
| Shock | IEC 60068-2-27 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3 , 802.3ab , 802.3u |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type DB9 male | |
| Serial Port Number | 4 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 75°C |
| Temperature (Operating Range) | -40 ~ 75°C (-40 ~ 167°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 42 x 140 x 95 mm (1.65″ x 5.51″ x 3.74″) |
| Enclosure (Metal) | Metal with solid mounting hardware |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 537g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 4.1W |
| Power Input (DC) | 12 ~ 48 VDC |
| Power Operating Current | 0.7A @ 24V |
| Redundant Dual Inputs | Yes |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | COM port redirection mode (Virtual COM), TCP/UDP server (polling) mode, TCP/UDP client (event handling) mode, |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1524I – 4-port RS-232/422/485 Serial Device Server – Wide Temperature(pdf, opens in a new tab)
EKI-1524CI
4-port RS-422/485 Serial Device Server – Isolation, Wide Temperature

EKI-1521, EKI-1522 and EKI-1524 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. EKI-1521, EKI-1522 and EKI-1524 are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. EKI-1521, EKI-1522 and EKI-1524 provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1521, EKI-1522 and EKI-1524, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI-1521, EKI-1522 and EKI-1524 ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Supports line to line 4 KV, line to ground 8 KV surge protection
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Supports up to 921.6 kbps, and any baud rate setting
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1, Windows Server 2003/2008/2012/2016, Windows CE 5.0, and Linux
- Automatic RS-485 data flow control
Specifications:
| Part Number | EKI-1524CI-CE |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4), EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1 |
| Shock | IEC 60068-2-27 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3 , 802.3ab , 802.3u |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 male |
| Serial Port Number | 4 |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 75°C |
| Temperature (Operating Range) | -40 ~ 75°C (-40 ~ 167°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 42 x 140 x 95 mm (1.65″ x 5.51″ x 3.74″) |
| Enclosure (Metal) | Metal with solid mounting hardware |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 537g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 4.1W |
| Power Input (DC) | 12 ~ 48 VDC |
| Power Operating Current | 0.7A @ 24V |
| Redundant Dual Inputs | Yes |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | Serial to Ethernet 2 kV; Serial to Power 2 kV; Ethernet to Power 1.5 kV |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | COM port redirection mode (Virtual COM), TCP/UDP server (polling) mode, TCP/UDP client (event handling) mode, |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1524CI – 4-port RS-422/485 Serial Device Server – Isolation, Wide Temperature(pdf, opens in a new tab)
EKI-1526
16-port RS-232/422/485 Serial Device Server (2 Ethernet Ports, 16 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 16, AC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Supports up to 976.5 kbps, and any baud rate setting
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- Built-in 15 KV ESD protection for all serial signals
- SNMP MIB-II for network management
- Built-in buzzer for easy location
- Standard 1U rackmount size
- Automatic RS-485 data flow control
- Rear wiring
Specifications:
| Part Number | EKI-1526-CE |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4), EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| Serial Communication | |
| Serial Port Connector Type | DB9 |
| Serial Port Number | 16 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14 ~ 140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (-4 ~ 176°F) |
| Mechanism | |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 3100g |
| Power | |
| Power Connector Type | Power cord |
| Power Consumption | 5.6W |
| Power Input (AC) | 100-240V |
| Power Operating Current | 0.3A@110VAC |
| 0.2A@220VAC | |
| Redundant Dual Inputs | NO |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | 32-bit/64-bit windows XP/7/8/8.1/10, Windows Server 2003/2008/ 2008 R2/2012/2012 R2/2016 and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1526 – 16-port RS-232/422/485 Serial Device Server – AC Input, DB9, Rackmount(pdf, opens in a new tab)
EKI-1526I
16-port RS-232/422/485 Serial Device Server – Wide Temp (2 Ethernet Ports, 16 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 16, AC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Wide operation temperature -40~75°C (-40~167°F)
- Supports up to 976.5 kbps, and any baud rate setting
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- 16-port RS-232/422/485 serial communication
- Built-in 15 KV ESD protection for all serial signals
- SNMP MIB-II for network management
- Built-in buzzer for easy location
- Standard 1U rackmount size
Specifications:
| Part Number | EKI-1526I-CE |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4), EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| Serial Communication | |
| Serial Port Connector Type | DB9 |
| Serial Port Number | 16 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 70°C |
| Temperature (Operating Range) | -40 ~ 70°C (40~158°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 3100g |
| Power | |
| Power Connector Type | Power cord |
| Power Consumption | 5.6W |
| Power Input (AC) | 100-240V |
| Power Operating Current | 0.3A@110VAC |
| 0.2A@220VAC | |
| Redundant Dual Inputs | NO |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1526I – 16-port RS-232/422/485 Serial Device Server – Wide Temp (pdf, opens in a new tab)
EKI-1526T
16-port RS-232/422/485 Serial Device Server (2 Ethernet Ports, 16 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 16, DC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Supports up to 976.5 kbps, and any baud rate setting
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- 8 or 16-port RS-232/422/485 serial communication
- Built-in 15 KV ESD protection for all serial signals
- SNMP MIB-II for network management
- Built-in buzzer for easy location
- Standard 1U rackmount size
- Automatic RS-485 data flow control
- Rear wiring
Specifications:
| Part Number | EKI-1526T-VDC-CE |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4), EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8(Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 |
| Serial Port Number | 16 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14 ~ 140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (-4 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 3100g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 5.6W |
| Redundant Dual Inputs | No |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1526T – 16-port RS-232/422/485 Serial Device Server – DC Input, DB9, Rackmount (pdf, opens in a new tab)
EKI-1526TI
16-port RS-232/422/485 Serial Device Server – Wide Temp., (2 Ethernet Ports, 16 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 16, DC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Wide operating temperature -40~75°C (-40~167°F)
- Supports up to 976.5 kbps, and any baud rate setting
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- 8 or 16-port RS-232/422/485 serial communication
- Built-in 15 KV ESD protection for all serial signals
- SNMP MIB-II for network management
- Built-in buzzer for easy location
- Standard 1U rackmount size
Specifications:
| Part Number | EKI-1526TI |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 |
| Serial Port Number | 16 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 70°C |
| Temperature (Operating Range) | -40 ~ 70°C (40~158°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 3100g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 5.6W |
| Redundant Dual Inputs | No |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 Years |
Datasheet on EKI-1526TI – 16-port RS-232/422/485 Serial Device Server – Wide Temp., DC Input, DB9, Rackmount (pdf, opens in a new tab)
EKI-1526TI-VHDC
16-port RS-232/422/485 Serial Device Server – Wide Temp., (2 Ethernet Ports, 16 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 16, 125VDC Input, Rackmount)

EKI-1526TI-VHDC is an industrial-grade network-based serial device server for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. It especially features in its 125V power input.
Features:
- 125V power input
- 16-port RS-232/422/485 serial communication
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Supports up to 976.5 kbps, and any baud rate setting
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- Built-in 15 KV ESD protection for all serial signals
- SNMP MIB-II for network management
Specifications:
| Part Number | EKI-1526TI-VHDC |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 |
| Serial Port Number | 16 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 70°C |
| Temperature (Operating Range) | -40 ~ 70°C (40~158°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | |
| No | |
| Weight | 3100g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 5.6W |
| Power Input (DC) | 12 ~ 48 VDC |
| Redundant Dual Inputs | No |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1526TI-VHDC – 16-port RS-232/422/485 Serial Device Server – Wide Temp., D125VDC Input, DB9, Rackmount (pdf, opens in a new tab)
EKI-1526N
16-port RS-232/422/485 Serial Device Server – AC Input, Serial RJ45, Rackmount

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Automatic RS-485 data flow control
- Supports up to 976.5 kbps, and any baud rate setting
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- Built-in 15 KV ESD protection for all serial signals
- Built-in buzzer for easy location
- SNMP MIB-II for network management
- 8 or 16-port RS-232/422/485 serial communication
Specifications:
| Part Number | EKI-1526N |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4), |
| EN | 61000-4-5(Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | RJ45 |
| Serial Port Number | 16 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14~140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (-4 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 3100g |
| Power | |
| Power Connector Type | Power cord |
| Power Consumption | 5.6W |
| Power Input (DC) | 100-240V |
| Power Operating Current | 0.3A@110VAC |
| 0.2A@220VAC | |
| Redundant Dual Inputs | No |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1526N – 16-port RS-232/422/485 Serial Device Server – AC Input, Serial RJ45, Rackmount (pdf, opens in a new tab)
EKI-1528
8-port RS-232/422/485 Serial Device Server (2 Ethernet Ports, 8 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 8, AC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Supports up to 976.5 kbps, and any baud rate setting
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- Built-in 15 KV ESD protection for all serial signals
- 8-port RS-232/422/485 serial communication
- SNMP MIB-II for network management
- Built-in buzzer for easy location
- Standard 1U rackmount size
- Rear wiring
Specifications:
| Part Number | EKI-1528 |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 |
| Serial Port Number | 8 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14~140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (-4 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 2900g |
| Power | |
| Power Connector Type | Power cord |
| Power Consumption | 5.6W |
| Power Input (DC) | 100-240V |
| Power Operating Current | 0.3A@110VAC |
| 0.2A@220VAC | |
| Redundant Dual Inputs | No |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1528 – 8-port RS-232/422/485 Serial Device Server(pdf, opens in a new tab)
EKI-1528I
8-port RS-232/422/485 Serial Device Server – Wide Temp., (2 Ethernet Ports, 8 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 8, AC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Supports up to 976.5 kbps, and any baud rate setting
- Standard 1U rackmount size
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Built-in buzzer for easy location
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- SNMP MIB-II for network management
- Built-in 15 KV ESD protection for all serial signals
- 8 or 16-port RS-232/422/485 serial communication
Specifications:
| Part Number | EKI-1528I-DR |
| Certification | |
| EMC | CE, FCC |
| EMI | (X)EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1 |
| Shock | IEC 60068-2-27 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, 802.3u |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 male |
| Serial Port Number | 8 |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 70°C |
| Temperature (Operating Range) | -40 ~ 70°C (40~158°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 86.6 x 140 x 104 mm (3.41″ x 5.51″ x 3.74″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 900g |
| Power | |
| Power Connector Type | Power cord |
| Power Consumption | 5.6W |
| Power Input (DC) | 12~48VDC |
| Power Operating Current | 1A@24VDC |
| Redundant Dual Inputs | Yes |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | Serial to Ethernet 2 kV; Serial to Power 2 kV; Ethernet to Power 1.5 kV |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | COM port redirection mode (Virtual COM), TCP/UDP server (polling) mode, TCP/UDP client (event handling) mode, |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1528I – 8-port RS-232/422/485 Serial Device Server(pdf, opens in a new tab)
EKI-1528T
8-port RS-232/422/485 Serial Device Server (2 Ethernet Ports, 8 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 8, DC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- 8 or 16-port RS-232/422/485 serial communication
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Supports up to 976.5 kbps, and any baud rate setting
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- Built-in 15 KV ESD protection for all serial signals
- SNMP MIB-II for network management
- Built-in buzzer for easy location
- Standard 1U rackmount size
- Rear wiring
Specifications:
| Part Number | EKI-1528T |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 |
| Serial Port Number | 8 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14~140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (-4 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 2900g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 5.6W |
| Redundant Dual Inputs | No |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1528T – 8-port RS-232/422/485 Serial Device Server(pdf, opens in a new tab)
EKI-1528TI
8-port RS-232/422/485 Serial Device Server – Wide Temp., (2 Ethernet Ports, 8 Serial Ports, 10Mbps, 100Mbps, 1Gbps, RJ45 x 2, DB9 Male x 8, DC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousand of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Wide operating temperature -40~70°C (40~158°F)
- 8 or 16-port RS-232/422/485 serial communication
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Supports up to 976.5 kbps, and any baud rate setting
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and serial console
- Built-in 15 KV ESD protection for all serial signals
- SNMP MIB-II for network management
- Built-in buzzer for easy location
- Standard 1U rackmount size
Specifications:
| Part Number | EKI-1528TI |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 |
| Serial Port Number | 8 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 70°C |
| Temperature (Operating Range) | -40 ~ 70°C (40~158°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 2900g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 5.6W |
| Redundant Dual Inputs | No |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1528TI – 8-port RS-232/422/485 Serial Device Server(pdf, opens in a new tab)
EKI-1528N
8-port RS-232/422/485 Serial Device Server (2 Ethernet Ports, 8 Serial Ports, 10Mbps, 100Mbps, 1Gbps, Serial RJ45 x 2, DB9 Male x 8, AC Input, Rackmount)

The EKI-1528 and EKI-1526 are industrial-grade network-based serial device servers for connecting up to 8 or 16 serial RS-232/422/485 devices, such as CNCs, PLCs, scales and scanners, directly to a TCP/IP network. The EKI-1528 and EKI-1526 feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528 and EKI-1526 provide a simple and cost-effective way to bring the advantages of remote management and data accessibility to thousands of devices that can’t connect to an Ethernet network. The EKI-1528 and EKI-1526 offer multiple ways to configure through Windows utility, Web Browser, serial console or Telnet console, these methods make it easy manage many EKI-1528 and EKI-1526 or serial devices on your network.
Features:
- Automatic RS-485 data flow control
- Supports up to 976.5 kbps, and any baud rate setting
- Provides 2 x 10/100/1000 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides rich configuration methods: Windows utility, Telnet console, Web Browser, and Serial console
- Built-in 15 KV ESD protection for all serial signals
- Built-in buzzer for easy location
- SNMP MIB-II for network management
- 8-port RS-232/422/485 serial communication
Specifications:
| Part Number | EKI-1528N |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1, UL 62368 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, IEEE 802.3u, IEEE 802.3ab |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | RJ45 |
| Serial Port Number | 8 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14~140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (-4 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 438 x 43.6 x 259.2 mm (17.24″ x 1.71″ x 10.2″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | No |
| Mounting (Wall) | No |
| Weight | 2900g |
| Power | |
| Power Connector Type | Power cord |
| Power Consumption | 5.6W |
| Power Input (AC) | 100-240V |
| Power Operating Current | 0.3A@110VAC |
| 0.2A@220VAC | |
| Redundant Dual Inputs | No |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | – |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-EKI-1528N – 8-port RS-232/422/485 Serial Device Server(pdf, opens in a new tab)
EKI-1528I-DR
8-port RS-232/422/485 Serial Device Server – Wide Temperature (2 Ethernet Ports, 8 Serial Ports, 10Mbps, 100Mbps, RJ45 x 2, DB9 Male x 8)

The EKI-1528I and EKI-1528CI feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528I and EKI-1528CI are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. The EKI-1528I and EKI-1528CI provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1528I and EKI-1528CI, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI-1528I and EKI-1528CI ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Supports up to 921.6 kbps, and any baud rate setting
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1, Windows Server 2003/2008/2012/2016, Windows CE 5.0, and Linux
- Automatic RS-485 data flow control
- Supports line to line 4 KV, line to ground 8 KV surge protection
Specifications:
| Part Number | EKI-1528I-DR |
| Certification | |
| EMC | CE, FCC |
| EMI | (X)EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1 |
| Shock | IEC 60068-2-27 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, 802.3u |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 male |
| Serial Port Number | 8 |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 70°C |
| Temperature (Operating Range) | -40 ~ 70°C (40~158°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 86.6 x 140 x 104 mm (3.41″ x 5.51″ x 3.74″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 900g |
| Power | |
| Power Connector Type | Power cord |
| Power Consumption | 5.6W |
| Power Input (DC) | 12~48VDC |
| Power Operating Current | 1A@24VDC |
| Redundant Dual Inputs | Yes |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | Serial to Ethernet 2 kV; Serial to Power 2 kV; Ethernet to Power 1.5 kV |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | COM port redirection mode (Virtual COM), TCP/UDP server (polling) mode,TCP/UDP client (event handling) mode, |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1528I-DR – 8-port RS-232/422/485 Serial Device Server (pdf, opens in a new tab)
EKI-1528CI-DR
8-port RS-422/485 Serial Device Server – Isolation, Wide Temperature (2 Ethernet Ports, 8 Serial Ports, 10Mbps, 100Mbps, RJ45 x 2, DB9 Male x 8)

The EKI-1528I and EKI-1528CI feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism to guarantee Ethernet network reliability. The EKI-1528I and EKI-1528CI are serial device servers that connect RS-232/422/485 serial devices, such as PLC, meters, sensors, and barcode reader to an IP-based Ethernet LAN. They allow nearly any device with serial ports to connect and share an Ethernet network. The EKI-1528I and EKI-1528CI provide various operations: COM port redirection (Virtual COMport), TCP Server, TCP Client and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the EKI-1528I and EKI 1528CI, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. With TCP server, TCP client, and UDP modes, EKI-1528I and EKI-1528CI ensure the compatibility of network software that uses a standard network API. Moreover, you can make serial devices communicate with other devices peer-to-peer, without any intermediate host PCs and software programming.
Features:
- Provides 2 x 10/100 Mbps Ethernet ports for LAN redundancy
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Supports up to 921.6 kbps, and any baud rate setting
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Built-in 15 KV ESD protection for all serial signals
- Provides rich configuration methods including Windows utility, Telnet console, and Web Browser
- Supports 32-bit/64-bit Windows 2000/XP/Vista/7/8/8.1, Windows Server 2003/2008/2012/2016, Windows CE 5.0, and Linux
- Automatic RS-485 data flow control
- Supports line to line 4 KV, line to ground 8 KV surge protection
Specifications:
| Part Number | EKI-1528I-DR |
| Certification | |
| EMC | CE, FCC |
| EMI | (X)EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 4), EN 61000-4-3 (Level 3), EN 61000-4-4 (Level 4),EN 61000-4-5 (Level 4), EN 61000-4-6 (Level 3), EN 61000-4-8 (Level 4), EN55024 |
| Freefall | IEC 60068-2-32 |
| Safety | UL 60950-1 |
| Shock | IEC 60068-2-27 |
| Vibration | IEC 60068-2-6 |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, 802.3u |
| Ethernet Port Number | 2 |
| RJ45 Transmission Speed | 10/100BaseT(X), Auto-sensing |
| Serial Communication | |
| Serial Port Connector Type | DB9 male |
| Serial Port Number | 8 |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Serial Transmission Speed | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 10 ~ 95% RH |
| Temperature (Min. Operating) | -40°C |
| Temperature (Max. Operating) | 70°C |
| Temperature (Operating Range) | -40 ~ 70°C (40~158°F) |
| Temperature (Storage Range) | -40 ~ 85°C (-40 ~ 185°F) |
| Mechanism | |
| Dimensions (W x H x D) | 86.6 x 140 x 104 mm (3.41″ x 5.51″ x 3.74″) |
| Enclosure (Metal) | SECC chassis |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 900g |
| Power | |
| Power Connector Type | Power cord |
| Power Consumption | 5.6W |
| Power Input (DC) | 12~48VDC |
| Power Operating Current | 1A@24VDC |
| Redundant Dual Inputs | Yes |
| Protection | |
| Reverse Polarity | Present |
| Port to Port Isolation | Serial to Ethernet 2 kV; Serial to Power 2 kV; Ethernet to Power 1.5 kV |
| Software | |
| Configuration | Windows utility, Telnet console, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | COM port redirection mode (Virtual COM), TCP/UDP server (polling) mode, TCP/UDP client (event handling) mode, |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on EKI-1528CI-DR – 8-port RS-232/422/485 Serial Device Server (pdf, opens in a new tab)
ADAM-4570
2-port RS-232/422/485 Serial Device Server (1 Ethernet Port, 2 Serial Ports, 10Mbps, 100Mbps)

ADAM-4571 and ADAM-4571L are fast and cost effective data gateways between serial and Ethernet interfaces. The units also bring the advantages of remote management and dataaccessibility to RS-232/422/485 devices. The transmission speed of the units is up to 230 kbps, meeting the demands for high-speed data exchanges. In addition, you can useWindows utility to configure ADAM-4571 and ADAM-4571L without further programming. The units not only protect your current hardware investment but also ensure future networkexpandability. Since the protocol conversion is transparent, all your existing devices can be seamlessly integrated with an Ethernet network. Therefore, ADAM-4571 and ADAM-4571Lcan be used in security systems, factory automation, SCADA, transportation and more. ADAM-4571 and ADAM4571L link both your existing human-machine interface(HMI) PC andyour RS-232/422/485 devices with Ethernet cables.ADAM-4571 and ADAM-4571L come with a Windows configuration and port-mapping utility. The configuration tool can auto-detect all Ethernet Data Gateway devices on the localnetwork, and let you adjust all settings. The port mapping utility helps you to setup up COM ports for Windows NT/2000/XP platform. This helps you configure all ports to meetyour needs.
Features:
- Supports RS-232/422/485 serial communications
- Supports baud rate up to 921.6 kbps
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides 10/100 Mbps auto-sensing Ethernet port
- Supports auto re-connection function
- Supports Windows 2000/XP/Vista drivers
- Built-in 15 KV ESD protection for all serial signals
- Automatic RS-485 data flow control
Specifications:
| Part Number | ADAM-4570-CE |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 15 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 2), EN 61000-4-3 (Level 2), EN 61000-4-4 (Level 2),EN 61000-4-5 (Level 2), EN 61000-4-6 (Level 2), EN 61000-4-8 (Level 2), EN55025 |
| Freefall | NA |
| Safety | NA |
| Shock | NA |
| Vibration | NA |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, 802.3u |
| Ethernet Port Number | 1 |
| RJ45 Transmission Speed | 10/100Mbps |
| Serial Communication | |
| Serial Port Connector Type | RJ48 |
| Serial Port Number | 2 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 5 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14~140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (40 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 70 x 112 x 25 mm |
| Enclosure (Plastic) | Yes |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 125g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 2.5W |
| Power Input (DC) | 10~30VDC |
| Power Operating Current | 0.3A@12V |
| Software | |
| Configuration | Windows utility, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on ADAM-4570 – 2-port RS-232/422/485 Serial Device Server (pdf, opens in a new tab)
ADAM-4570L
2-port RS-232 Serial Device Server (1 Ethernet Port, 2 Serial Ports, 10Mbps, 100Mbps)

ADAM-4571 and ADAM-4571L are fast and cost effective data gateways between serial and Ethernet interfaces. The units also bring the advantages of remote management and dataaccessibility to RS-232/422/485 devices. The transmission speed of the units is up to 230 kbps, meeting the demands for high-speed data exchanges. In addition, you can useWindows utility to configure ADAM-4571 and ADAM-4571L without further programming. The units not only protect your current hardware investment but also ensure future networkexpandability. Since the protocol conversion is transparent, all your existing devices can be seamlessly integrated with an Ethernet network. Therefore, ADAM-4571 and ADAM-4571Lcan be used in security systems, factory automation, SCADA, transportation and more. ADAM-4571 and ADAM4571L link both your existing human-machine interface(HMI) PC andyour RS-232/422/485 devices with Ethernet cables.ADAM-4571 and ADAM-4571L come with a Windows configuration and port-mapping utility. The configuration tool can auto-detect all Ethernet Data Gateway devices on the localnetwork, and let you adjust all settings. The port mapping utility helps you to setup up COM ports for Windows NT/2000/XP platform. This helps you configure all ports to meetyour needs.
Features:
- Supports RS-232 serial communication
- Supports baud rate up to 921.6 kbps
- Provides COM port redirection (Virtual COM) mode
- Allows a max. of 5 hosts to access one serial port
- Built-in 15 KV ESD protection for all serial signals
- Provides 10/100 Mbps auto-sensing Ethernet port
- Supports auto re-connection function
- Supports Windows 2000/XP/Vista drivers
- Supports remote update firmware
Specifications:
| Part Number | ADAM-4570L |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 18 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 2), EN 61000-4-3 (Level 2), EN 61000-4-4 (Level 2),EN 61000-4-5 (Level 2), EN 61000-4-6 (Level 2), EN 61000-4-8 (Level 2), EN55027 |
| Freefall | NA |
| Safety | NA |
| Shock | NA |
| Vibration | NA |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, 802.3u |
| Ethernet Port Number | 1 |
| RJ45 Transmission Speed | 10/100Mbps |
| Serial Communication | |
| Serial Port Connector Type | RJ48 |
| Serial Port Number | 2 |
| RS-232 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 5 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14~140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (40 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 70 x 112 x 25 mm |
| Enclosure (Plastic) | Yes |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 125g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 2.5W |
| Power Input (DC) | 10~30VDC |
| Power Operating Current | 0.3A@12V |
| Software | |
| Configuration | Windows utility, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on ADAM-4570L – 2-port RS-232 Serial Device Server (pdf, opens in a new tab)
ADAM-4571
1-port RS-232/422/485 Serial Device Server (1 Ethernet Port, 1 Serial Port, 10Mbps, 100Mbps)

ADAM-4571 and ADAM-4571L are fast and cost effective data gateways between serial and Ethernet interfaces. The units also bring the advantages of remote management and data accessibility to RS-232/422/485 devices. The transmission speed of the units is up to 230 kbps, meeting the demands for high-speed data exchanges. In addition, you can use Windows utility to configure ADAM-4571 and ADAM-4571L without further programming. The units not only protect your current hardware investment but also ensure future network expandability. Since the protocol conversion is transparent, all your existing devices can be seamlessly integrated with an Ethernet network. Therefore, ADAM-4571 and ADAM-4571Lcan be used in security systems, factory automation, SCADA, transportation and more. ADAM-4571 and ADAM4571L link both your existing human-machine interface(HMI) PC and your RS-232/422/485 devices with Ethernet cables.ADAM-4571 and ADAM-4571L come with a Windows configuration and port-mapping utility. The configuration tool can auto-detect all Ethernet Data Gateway devices on the local network, and let you adjust all settings. The port mapping utility helps you to setup up COM ports for Windows NT/2000/XP platform. This helps you configure all ports to meet your needs.
Features:
- Supports RS-232/422/485 serial communication
- Supports baud rate up to 921.6 kbps
- Allows a max. of 5 hosts to access one serial port
- Allows a max. of 16 hosts to be accessed as TCP client mode
- Provides COM port redirection (Virtual COM), TCP and UDP operation modes
- Provides 10/100 Mbps auto-sensing Ethernet port
- Supports auto re-connection function
- Built-in 15 KV ESD protection for all serial signals
- Automatic RS-485 data flow control
- Supports remote update firmware
Specifications:
| Part Number | ADAM-4571 |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 20 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 2), EN 61000-4-3 (Level 2), EN 61000-4-4 (Level 2),EN 61000-4-5 (Level 2), EN 61000-4-6 (Level 2), EN 61000-4-8 (Level 2), EN55029 |
| Freefall | NA |
| Safety | NA |
| Shock | NA |
| Vibration | NA |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, 802.3u |
| Ethernet Port Number | 1 |
| RJ45 Transmission Speed | 10/100Mbps |
| Serial Communication | |
| Serial Port Connector Type | RJ48 |
| Serial Port Number | 1 |
| RS-232 | Yes |
| RS-422 | Yes |
| RS-485 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 5 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14~140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (40 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 70 x 112 x 25 mm |
| Enclosure (Plastic) | Yes |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 125g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 2.5W |
| Power Input (DC) | 10~30VDC |
| Power Operating Current | 0.3A@12V |
| Software | |
| Configuration | Windows utility, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on ADAM-4571 – 1-port RS-232/422/485 Serial Device Server (pdf, opens in a new tab)
ADAM-4571L
1-port RS-232 Serial Device Server (1 Ethernet Port, 1 Serial Port, 10Mbps, 100Mbps)

The ADAM-4571L provides a robust and cost effective way to network-enable equipment in an industrial automation environment. It also brings the advantages of remote management and data accessibility to RS-232 devices. The transmission speed of the ADAM-4571L is up to 921.6 Kbps, meeting the demands for high-speed data exchanges. By encapsulating serial data and transporting it over Ethernet, the ADAM-4571L allows virtual serial links over TCP/IP networks. After Advantech Serial Device Server Configuration Utility installation, standard serial operation calls are transparently redirected to the serial device server, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. The ADAM-4571L comes with a Windows configuration utility. The configuration tool can auto-detect all serial device servers on the local network, and let you adjust all settings. The configuration utility merges the port mapping function to helps you to setup Virtual COM ports for Windows 2000/XP/Vista(x86) platform. This helps you configure all ports to meet your needs.
Features:
- Supports RS-232 serial communication
- Supports baud rate up to 921.6 kbps
- Provides COM port redirection (Virtual COM) mode
- Allows a max. of 5 hosts to access one serial port
- Built-in 15 KV ESD protection for all serial signals
- Provides 10/100 Mbps auto-sensing Ethernet port
- Supports auto re-connection function
- Supports Windows 2000/XP/Vista drivers
- Supports remote update firmware
Specifications:
| Part Number | ADAM-4571L |
| Certification | |
| EMC | CE, FCC |
| EMI | EN 55011/ EN 55032 Class A, EN 61000-6-4, FCC Part 20 Subpart B Class A |
| EMS | EN 61000-4-2 (Level 2), EN 61000-4-3 (Level 2), EN 61000-4-4 (Level 2),EN 61000-4-5 (Level 2), EN 61000-4-6 (Level 2), EN 61000-4-8 (Level 2), EN55031 |
| Freefall | NA |
| Safety | NA |
| Shock | NA |
| Vibration | NA |
| Ethernet Communication | |
| RJ45 Port Connector Type | RJ45 |
| Ethernet Standard | IEEE 802.3, 802.3u |
| Ethernet Port Number | 1 |
| RJ45 Transmission Speed | 10/100Mbps |
| Serial Communication | |
| Serial Port Connector Type | RJ48 |
| Serial Port Number | 1 |
| RS-232 | Yes |
| Baud Rate | 50 ~ 921.6 Kbps |
| Environment | |
| Humidity (Operating Range) | 5 ~ 95% RH |
| Temperature (Min. Operating) | -10°C |
| Temperature (Max. Operating) | 60°C |
| Temperature (Operating Range) | -10 ~ 60°C (14~140°F) |
| Temperature (Storage Range) | -20 ~ 80°C (40 ~ 176°F) |
| Mechanism | |
| Dimensions (W x H x D) | 70 x 112 x 25 mm |
| Enclosure (Plastic) | Yes |
| IP Rating | IP30 |
| Mounting (DIN-rail) | Yes |
| Mounting (Wall) | Yes |
| Weight | 125g |
| Power | |
| Power Connector Type | Terminal block |
| Power Consumption | 2.5W |
| Power Input (DC) | 10~30VDC |
| Power Operating Current | 0.3A@12V |
| Software | |
| Configuration | Windows utility, Web Browser |
| Driver | Windows XP/7/8.1/10, Windows Server 2003/2008/2012/2016/2019, and Linux |
| Operation Mode | Virtual COM, TCP/UDP server TCP/UDP client |
| Warranty | |
| Warranty Period | 5 years |
Datasheet on ADAM-4571L – 1-port RS-232 Serial Device Server (pdf, opens in a new tab)
BB-ESP906CL
Serial Device Server, 4 x RJ45 RS-232/422/485, 2 x RJ45 Current Loop

B&B Electronics’ new Model ESP906CL integrates the benefits of Ethernet communications with existing serial devices by offering four configurable RS-232/422/485 serial ports and two digital current loop ports. The Ethernet connection will auto select 10BaseT or 100BaseTX. The ESP906CL provides a Windows host control over serial devices located virtually anywhere on a TCP/IP or UDP/IP Ethernet connection. It even gives authorized users control over the connected serial device or the ESP906CL Menu from anywhere outside the LAN.
Features:
- Serial Device Server
- Supports 10/100 Mbps Ethernet
- Supports RS-232, RS-422, and RS-485 and digital current loop interfaces
Specifications:
| Part Number | BB-ESP906CL |
| General | |
| Technology | Serial |
| Serial Port Count | 6 |
| Serial Type | RS-232/422/485, CL |
| Ethernet Port Count | 1 |
| Mounting | Panel |
| Power | 36VDC |
| Temperture | 0 to 40C |
Datasheet on BB-ESP906CL (pdf, opens in a new tab)