RAD DATA COMMUNICATIONS

SRM-8H (RJ-45)

Card Type              Short Range Modem
Chip Set               Unidentified
I/O Options            25-pin DTE port, RJ-45 connector, terminal block
Wiring Type            Unshielded twisted pair
Maximum Data Rate      64Kbps
Data Bus               External

[Image]

                                            CONNECTIONS

            Function                   Label                        Function                 Label

  DTE serial port (25-pin        CN1     Terminal block                            CN3
  connector)

  RJ-45 connector                CN2

                        USER CONFIGURABLE SETTINGS

                     Setting                       Label      Position

  64Kbps connection speed enabled                  SW2/4         Off

  56Kbps connection speed enabled                  SW2/4         On

  Asynchronous stop bit shortening set to 25%      SW2/5         Off

  Asynchronous stop bit shortening set to 12.5%    SW2/5         On

  Carrier forced high                              SW3/2         On

  Carrier follows RTS signal                       SW3/2         Off

  DTE control of analog loop disabled              SW3/3         Off

  DTE control of analog loop enabled               SW3/3         On

  DTE control of remote digital loop disabled      SW3/4         Off

  DTE control of remote digital loop enabled       SW3/4         On

                          LOOPBACK TEST SELECTOR

                  Function                               SW1

      Activates local analog loopback                     1

  Normal operation. Loopback not activated                2

     Remote digital loopback initiated                    3

                           TRANSMIT CLOCK SOURCE

                 Source                    SW2/1      SW2/2       SW2/3

  Transmit clock generated internally       Off        Off         Off

   Transmit clock derived from receive      Off        Off         On
              line signal

  Transmit clock derived from terminal      On         Off         Off
               interface

       Asynchronous mode enabled            Off         On         Off

       CHARACTER LENGTH (ASYNC MODE)

         Setting           SW2/6    SW3/1

         8 bits             Off      Off

         9 bits             Off      On

         10 bits            On       Off

         11 bits            On       On

                             DIAGNOSTIC LED(S)

   LED      Color    Status                    Condition

   PWR      Green      On                     Power is on

   PWR      Green     Off                    Power is off

   TST       Red       On        Device is conducting a loopback test

   TST       Red      Off      Device is not conducting a loopback test

    CD      Yellow     On                 Carrier signal high

    CD      Yellow    Off                 Carrier signal low

    TD      Yellow     On             Device is transmitting data

    TD      Yellow    Off           Device is not transmitting data