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ISA-7520R RS-232 to RS-485 converter card  £45.00 

RS-232 to RS-485 converter card with 9-pin to 9-pin D-sub cable

If space is at a premium and for ease of use, this board is powered from your PC and provides a RS485 Output without the need for external equipment or power supplies.

This PCB fits into your PC ISA Slot and a cable is provided to connect from your PC's RS232 connection to the PCB's top connector. Parts are also supplied to build a cable to connect to the I-7000 range of Distributed I/O modules.
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Features

  • Requires: PC ISA bus interface & RS232 (9-way d-type) Comm Port
  • Input: RS-232 protocol
  • Output: RS-485 protocol
  • Speed: \"Self Tuner\" inside, auto switching baud rate, 300~115200 BPS
  • 256 modules max. in one RS-485 network without repeater
  • 2048 modules max. in one RS-485 network with repeater
  • Isolation voltage: 3000VDC
  • Repeater request: 4,000 feet or over
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    Technical

    User Manual

    Applications

    RS232-RS485 Conversion
    Connect RS232 Devices over long distances
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