Converters: RS232 to RS422 / RS485 I-Loop / Fibre Optic / Isolator

Most industrial computer systems come with standard RS-232 serial ports. Though widely accepted, RS-232 has limited transmission speed, range, and networking capabilities. The RS-422 and RS-485 standards overcome these limitations by using differential voltage lines for data and control signals. The ADAM-4520/4522 converter lets you take advantage of RS-422 and RS-485 on systems originally equipped with RS-232. It transparently converts RS-232 signals into isolated RS-422 or RS-485 signals. You do not need to change your PC’s hardware or your software. The ADAM-4520 lets you easily build an industrial grade, long distance communication system with standard PC hardware. It extends the communication distance by 4000 ft. (1200 m) or increases the maximum number of connected nodes by 32.

Features:

• Automatic RS-485 data flow control
• 3000 VDC isolation protection
• Surge protection RS-485 data line
• Transmission speed up to 115.2 Kbps
• Networking up to 1200 meters (4000 feet)
• Reserved space for termination resistors
• Power and data flow indicator for troubleshooting
• Power requirement: +10 to +30 VDC
• Mounts easily on a DIN-rail, panel or piggyback

Specifications:

Datasheet on ADAM-4520 (pdf, opens in a new tab)

Features:

• Automatic RS-485 data flow control
• Surge protection RS-485 data line
• Transmission speed up to 115.2 Kbps
• Networking up to 1200 meters (4000 feet)
• Reserved space for termination resistors
• Power and data flow indicator for troubleshooting
• Power requirement: +10 to +30 VDC
• Mounts easily on a DIN-rail, panel or piggyback

Specifications:

Datasheet on ADAM-4510 (pdf, opens in a new tab)

Features:

• Automatic RS-485 data fl ow control
• 3000 VDC isolation protection
• Surge protection RS-485 data line
• Transmission speed up to 115.2 Kbps
• Networking up to 1200 meters (4000 feet)
• Reserved space for termination resistors
• Power and data fl ow indicator for troubleshooting
• Power requirement: +10 to +30 VDC
• Mounts easily on a DIN-rail, panel or piggyback

Specifications:

Datasheet on ADAM-4510S (pdf, opens in a new tab)

The ADAM-4521 is an intelligent RS-422/485 to RS-232 converter specifically designed to connect RS-422/485 devices to an RS-232 network. RS-232 is the most common transmission standard. Although widely available on most computer systems, measurement equipment, PLCs, and industrial devices, its transmission speed, communication distance, and especially networking capability are limited due to unbalanced transmission. The ADAM-4521 addressable converter solves this problem and lets you easily build up an RS-485 network with your RS-232 devices by assigning each one an address for easier communication.

Features:

• Automatic RS-485 data flow control
• 1000 VDC isolation protection
• Surge protection RS-485 data line
• Transmission speed up to 115.2 Kbps
• Networking up to 1200 meters (4000 feet)
• Reserved space for termination resistors
• Power and data flow indicator for troubleshooting
• Power requirement: +10 to +30 VDC
• Mounts easily on a DIN-rail, panel or piggyback
• RS-232 and RS-485 can be set to different baud rates
• Watchdog timer function
• Software confi gurable to either addressable or non-addressable mode
• All communication setups stored in EEPROM

Specifications:

Datasheet on ADAM-4521 (pdf, opens in a new tab)

ADAM-4561/4562 allows PC users to connect a serial device to a system that use a USB interface. To attach the ADAM-4561/4562 to a PC, you don’t need to open the chassis or power down your PC. Instantly get one or two extra high-speed RS-232/422/485 ports. The power is derived from the USB port, so there are no power adapters to deal with. This makes the ADAM-4561/4562 especially suitable for modems, printers, POS systems and industrial control devices.

Features:

• Full compliance with USB V1.1 specifications
• RS-232/422/485 port supported
• Transmission speed up to 115.2 kbps
• Isolation protection 3000 VDC provided
• Automatic RS-485 data flow control
• No external power supply necessary; the hub derives its power from the USB port
• Plug & Play installation
• No additional IRQs or I/O ports required
• Hot swap function supported

Specifications:

Datasheet on ADAM-4561 (pdf, opens in a new tab)

IC485S is a 2-way converter for converting RS-232 signals to and from RS-422/RS-485 signals in long-distance applications up to 1200 m (4000 ft.). It supports the connection of up to 32 hubs and features monitoring to confirm the data passing between devices.

Features:

• Data transmission controlled by the RTS signal.
• DCE/DTE selectable.
• Point to point, multidrop, and simplex/duplex link selection.
• Four wire full duplex; two wire half duplex.
• Compact size.
• Cable distance of up to 1200m (4000 ft.).
• Monitor configuration support.
• Supports baud rates up to 115.2kbps.
• OS Support: Windows 2000, Windows XP

Specifications:

IC485SN is a 2-way converter for converting RS-232 signals to and from RS-422/RS-485 signals in long-distance applications up to 1200 m (4000 ft.) – without the need of an external power supply.

Features:

• Data transmission controlled by the RTS signal.
• DCE/DTE selectable.
• Point to point, multidrop, and simplex/duplex link selection.
• Four wire full duplex; Four wire half duplex.
• Compact size.
• Cable distance of up to 1200m (4000 ft.).
• Non powered operation.
• Supports baud rates up to 115.2kbps.
• OS Support: Windows 2000, Windows XP

Specifications:

Features:

• The PC485 RS232 to RS485 converter is supplied as a through connector, self contained package.
• Power for the unit is obtained from an IBM PC, or compatible, RS232 port via pins 7 (GND) & 20 (+12V via DTR line). Alternatively the PC485 may be externally powered (9 to 12VDC), see wiring diagram overleaf. The use of an external power source is generally only required when a low power serial card is used in the computer and multiple external units are being addressed or when the serial output does not provide power.
• Baud rates accepted are from 300 to 38400 baud. The converter automatically detects the baud rate being used.
• Connection at the RS232 end is via a 25 way female “D” connector. At the RS485 end the connector is a 25 way male “D” connector.
• Dimensions: 63mm (h) x 56mm (w) x 16mm (d)

Datasheet on AIC PC485 (pdf, opens in a new tab)

The PC422 and PC485 converters are supplied as a through connector, self contained package. The PC485 gives RS232 to RS485 conversion. The PC422 give RS232 to either RS485 or RS422 conversion.

Power for the units is obtained from an IBM PC or compatible RS232 port via pins 7 (GND) & 20 (+12V via DTR line). Alternatively the converters may be externally powered (9 to 12VDC), see wiring diagram overleaf. The use of an external power source is generally only required when a low power serial card is used in the computer and multiple external units are being addressed or when the serial output does not provide power.

Baud rates are from 300 to 38400 baud. The converter automatically detects the baud rate being used.

Connection at the RS232 end is via a 25 way female “D” connector. At the RS485/RS422 ends the connector is a 25 way male “D” connector.

Operation mode and setup selections are made via circuit board links.

Datasheet on AIC RMSI485 (pdf, opens in a new tab)

Fiber optics transmission offers the benefits of wide bandwidth, immunity to EMI/RFI interference, and secure data transmission. ADAM-4541 can be used as an RS-232/422/485 point-to-point or point-to-mutipoint connection for transmitting and converting full/half-duplex signals and their equivalents within a fiber optic environment. Fiber optics is the perfect solution for applications where the transmission medium must be protected from electrical exposure, lightning, atmospheric conditions or chemical corrosion.

Features:

• Easily mounted on a DIN-rail, panel or piggyback
• Transmission speeds of up to 115.2 kbps
• Optical fibers enable transmission of 2.5 km (measured with 62.5/125 mm)
• Half/Full-duplex, bidirectional transmission mode
• Avoids lightning strikes and EMI/RFI interference
• Prevents damage from electrostatic discharge
• Stable and error-free data transmission
• Automatic internal RS-485 bus supervision
• No external flow control signals required for RS-485
• Transient suppression and over-current protection on RS-422/485 data lines
• Reserved space for termination resistors
• LED for power and data flow indication
• Power requirement: +10 to + 30 VDC

Specifications:

Datasheet on ADAM-4541 (pdf, opens in a new tab)

The 9POP4 isolates and protects RS-232 equipment from lightning surges, accidental high voltage shorts, and ground loops. RS-232 data signals TD, RD, RTS, and CTS are supported at up to 230.4 kbps. Isolation circuits are 2.5 kV rated and protects valuable equipment while maintaining maximum uptime.

Each side of the isolator receives power from a single 12 VDC power supply to maintain the isolation. This powering configuration allows the device to be used in a system with only one power supply, regardless of the power provided by the RS-232 ports.

The isolator uses DB9 male and DB9 female connectors. The female connector is wired as a DCE and should be connected to a DTE port. The male connector is a DTE and should be connected to a DCE port. If you are connecting a DTE to a DTE or a DCE to a DCE, you will need a null modem adapter.

Power supplies recommended and available from B&B Electronics have been tested and certified. Using any other power supply may bypass or degrade the isolation barrier.

Features:

• 2.5 kV Isoaltion
• ESD Protection -15 kV
• Compact IP 30 Plastic Case

Specifications:

Datasheet on ADAM-4541 (pdf, opens in a new tab)