RAD DATA COMMUNICATIONS

SRM-31A

Card Type                Short Range Modem
Chip Set                 Unidentified
I/O Options              25-pin DTE port, terminal block
Wiring Type              Unshielded twisted pair
Maximum Data Rate        115.2Kbps
Data Modulation Protocol 2B1Q
Data Bus                 External

[Image]

                                            CONNECTIONS

            Function                   Label                        Function                 Label

  DTE serial port (25-pin        CN1     Terminal block                            CN2
  connector)

                             DIAGNOSTIC LED(S)

   LED      Color    Status                    Condition

   LOS       Red       On         Loss of signal condition detected on
                                                network

   LOS       Red      Off       Loss of signal condition not detected on
                                                network

   TST       Red       On        Device is conducting a loopback test

   TST       Red      Off      Device is not conducting a loopback test

    RX      Yellow     On               Data is being received

    RX      Yellow    Off             Data is not being received

    TX      Yellow     On              Data is being transmitted

    TX      Yellow    Off            Data is not being transmitted

   PWR      Green      On                     Power is on

   PWR      Green     Off                    Power is off