Microsoft Windows Embedded Partner - WEPP


RS-422/485 Repeater with Isolation

Main Features

  • Automatic internal RS-422/485 bus supervision
  • No external flow control signals required for RS-485
  • Serial type support auto detect and switch
  • Supported baud rate up to 115.2Kbps
  • Reach distance up to 4000 feet (1200m)
  • Support multiple baud rate and multiple data format
  • Reserved space for termination resistors (R8,R9)
  • Power and data flow indicator for troubleshooting
  • Power requirement : +9 ~ 30VDC
  • DIN-Rail and wall mounting enabled


The ISC-1212-I is a RS-422/485 repeater which boosts the RS-422/485 signals to extend the reach distance up to 4000 ft (1200m) and increase the maximum number of connection up to 128 nodes. With a special circuitry, ISC-1212-I is able to automatically detect the data flow and switch the direction of the data lines accordingly. ?Auto baud rate detector? enables ISC-1212-I to automatically configure RS-422/485 signals to any baud rate without external switch setting. Build in opto-isolations on ISC-1212-I provides 3000VDC of isolation to protect the host computer from destructive voltage spikes on the RS- 422/485 data lines. ISC-1212-I also offers internal surge-protection on the data lines. The internal high-speed transient suppressors on each data line protect the module from dangerous voltages levels or spikes. Therefore, the ISC-1212-I is a reliable RS-422/485 repeater and can satisfy most demand of operating environment.

Ordering Information

Model No. Description
ISC-1212-I Industrial RS-422/485 repeater with 3KV isolation