Converters, Printer Sharers, etc - Alfatron

Alfatron

Australian manufactured.    12 months warranty.

Please request data sheets.      Download User Manuals                     

International customers (other than NZ): goods are shipped without the Australian mains adaptor.
Mains adaptor required: Output: 9V, 500mA , plug 5.5mm outside dia, 2.5mm inside diameter, centre positive, outer negative, e.g. from Tandy.

A400 Series Interface Converters      - EMC Approved		w/o GST 6/10
A420	RS232 Serial  to  20mA Current Loop Conv, isolated, 2 loops: send & rec. Set loop to Active or Passive. Screw terminals.	$191
A430	RS422 Serial  to  20mA Current Loop Conv, isolated, 2 loops: send & rec. Set loop to Active or Passive. Screw terminals.	$191
A440	RS232  to  RS422 Serial Converter bi-directional, not isolated, metal case data sheet (pdf 185KB)	$191
A450	RS232  to  RS485 multi-drop Serial Converter, not isolated, has screw terminal block which can be unplugged, metal case   Data sheet (pdf 180KB)  A450b NEW VERSION picture diagram    A450b User Manual	$191
A451	RS232  to  RS485 with RJ45 x2 Ethernet type connectors Full Duplex (4 wire) and Half Duplex (2 wire) operation using Standard Ethernet cables (Cat 5) Internal jumper settings allow the use of either ‘standard’ or ‘crossed’ Ethernet cables Transmits data at up to 115Kbps    Non-powered RS-485 operation over distances up to 100 metres Switchable DCE/DTE selection for RS-232 port, Switchable termination resistors for RS-485 port LED indicators for data activity    Transient Protection on RS-485 lines Monitor mode allows problem diagnosis on the RS-422/485 bus Power Supply only required for cables over 100m: 9V (200mA) DC Reverse Polarity Protection. Mains adaptor supplied.	$221
Mains Adaptor (spare) for small converters.  Alfatron Converters include a mains adaptor.		$40
JED-995A	RS232 to RS422/485 Converter, Isolated    more data on JED: click here plastic case, opto-isolated, bi-directional (without mains adaptor)
JED-995X	RS232 to RS422/485 Converter, Auto-TX-On    more data on JED: click here plastic case, opto-isolated, bi-directional (without mains adaptor)
Mains Adaptor for JED Converters (not included automatically)

Serial to Parallel Converters A510		w/o GST
A510	RS232 Serial to Parallel Centronics Converter   Data sheet: click here (.pdf file)   Strong metal case. RS232 side accepts up to 38400bps and uses either robust Xon/Xoff or DSR/DTR handshaking. Switch select DTE or DCE wiring. DB25F and female Centronics connectors at ends. Strong metal case. Test function transmits a stream of ASCII characters to the printer. Four LEDs: Power, Rx, Tx, Data error. Not isolated. Mains adaptor included. The Centronics parallel port is set to either input or output with a switch. The Centronics connector is 36-way female. Serial ports (RS232 & RS422) have DB25F cnnctr.	$215+GST

A1600 Series In-Line Buffers - have Two Independent Serial Ports

They can be used for speed conversion, etc, between otherwise incompatible equipment. Use standard 72-pin no-parity SIMMs.
If the output device is not connected, the A1600 normally will not accept any input. Otherwise, use A1400 below. Please advise exact requirements.     Shipping weight: approx 700gm total.

The A1600 is labelled as “unidirectional”, however it does actually work in both directions, as does the A1610 which is called “bidirectional”.
The difference between the two units is that in the A1600, the memory buffer is allocated 90% to the input port and 10% to the output port, whereas in the A1610 the buffer is split evenly between the ports.   Data on  A1600 Series (.pdf)

Hence the A1600 is intended for use where the speeds of the two ports are similar and most of the data is sent in one direction,
or else where the speeds of the two ports are very different and hence most of the buffering would be needed on one side.

The A1610 is intended for applications where the data flow and port speeds are similar in both directions.
      Data on A1610 series (.pdf)

Overseas customers: We ship a mating power plug for the low voltage power socket. We do not ship the mains adaptor as it only fits Australian and New Zealand power outlets. You will need to supply a 9VDC mains adaptor with local mains connection.

Weight of A1400DL for overseas shipping, without mains adaptor, is just under 2kg each. Allow more for outside carton.

The A1400DL with a modem and cables for phone & RS232

The A1400DL is available with a Modem and phone & RS232 cables. The RS232 Cable can be made so that either data is auto downloaded immediately when a modem connection is made, or when XON/XOFF control or hardware handshake is exercised. We do not ship the product with any software ... customers use their own, or a terminal program.   Large picture

A1400DL-xM/MC with modem and cables, plug pack has 2 leads: 240VAC mains power lead and low voltage lead for the A1400.
The A1400 supplies power to the modem via a separate small cable included.
Customer must describe in detail the downloading requirements so that the correct cable & details can be provided.
Maestro Companion modem powered from the S1400DL.      Picture showing rear connections & accessories

Overseas customers: We ship a mating power plug for the low voltage power socket. We do not ship the mains adaptor as it only fits Australian and New Zealand power outlets. You will need to supply a 9VDC mains adaptor with local mains connection.

A1400eL has an RS232 serial input port and a 10BaseT Ethernet port