Overview

The PACSystems* RX3i Serial Communications modules expand the serial communication capabilities of the RX3i system. The Serial Communications Module IC695CMM002 provides two independent, isolated serial ports.

Specifications

• Number of Serial Ports:
  • IC695CMM002: Two independent serial ports
  • IC695CMM004: Four independent serial ports
• Connectors: RJ-45
• Number of Serial Communication Modules per CPU:
  • Maximum of six modules in the main CPU backplane
• Backplane Power Requirements:
  • IC695CMM002: 0.7 Amps maximum @ 3.3VDC, 0.115 Amps maximum @ 5.0VDC
  • IC695CMM004: 0.7 Amps maximum @ 3.3VDC, 0.150 Amps maximum @ 5.0VDC
• LED Indicators:
  • Module OK
  • Port Fault
  • Port Status (2 or 4, depending on the module)
• Port Types:
  • RS-232
  • RS-485/422 (4-wire full-duplex or 2-wire half-duplex)
• Flow Control for RS-232: Selectable: Hardware (RTS/CTS, RFR/CTS) or none
• Baud Rates: 1200, 2400, 4800, 9600, 19.2K, 38.4K, 57.6K, 115.2K bps
• Parity Options: Even, odd, none
• Data Bits: 7 or 8
• Stop Bits: 1 or 2
• Operating Temperature: 0°C to +60°C
• Input Impedance:
  • RS-485/422: Zin > 96 kΩ
  • RS-232: 3 kΩ < Zin < 7 kΩ
• Maximum Overvoltage: ±25V
• Channel-to-Channel Crosstalk: –55 dB minimum
• Isolation:
  • Port to Backplane and Frame Ground:
    • 250VAC continuous
    • 1500VAC for 1 minute
    • 2550VDC for 1 second
  • Port to Port:
    • 500VDC continuous
    • 710VDC for 1 minute