RAD DATA COMMUNICATIONS

ASMI-31 MODEM/X.21

Card Type                 Modem
Chip Set                  Unidentified
I/O Options               AC power connector, 15-pin connector,

                          Network interface via terminal block and RJ-45
                          connector
Wiring Type               RJ-45 shielded twisted pair

                          Terminal block shielded twisted pair
Maximum Data Rate         128Kbps
Line Coding               2B1Q
Data Bus                  External

[Image]

                                            CONNECTIONS

               Function                 Label                    Function                   Label

  AC power connector                     CN1     Network interface via RJ-45 connector       CN4

  DTE serial port (15-pin connector)     CN2     Reset push-button                          RESET

  Network interface via terminal         CN3
  block

                        USER CONFIGURABLE SETTINGS

                Setting                     Label           Position

  Loopback timing mode enabled               JP9        Pins 3 & 4 closed

  Internal clock mode enabled                JP9        Pins 2 & 3 closed

  External clock mode enabled                JP9        Pins 1 & 2 closed

  Remote digital DTE loopback test           JP14       Pins 1 & 2 closed
  disabled

  Remote digital DTE loopback test           JP14       Pins 2 & 3 closed
  enabled

  Local analog DTE loopback test             JP15       Pins 1 & 2 closed
  disabled

  Local analog DTE loopback test             JP15       Pins 2 & 3 closed
  enabled

  Signal ground is connected to the          JP18       Pins 2 & 3 closed
  frame ground

  Signal ground is not connected to the      JP18       Pins 1 & 2 closed
  frame ground

  Synchronous operation mode enabled        SW6/1              On

  Asynchronous operation mode enabled       SW6/1              Off

  8-bit                                     SW6/2              On

  7-bit                                     SW6/2              Off

  Parity enable                             SW6/3              On

  Parity disabled                           SW6/3              Off

  Parity even                               SW6/4              On

  Parity odd                                SW6/4              Off

  1 stop bit                                SW6/5              On

  2 stop bits                               SW6/5              Off

  DCD mode enabled                          SW6/6              On

  CNT mode enabled                          SW6/6              Off

  DSR mode enabled                          SW6/7              On

  DTR mode enabled                          SW6/7              Off

                                             DATA RATE

                         Setting                                 Mode                  SW7

                        1200bps                           Sync/async                 1

                        2400bps                               Sync/async                2

                        4800bps                                     Sync/async          3

                        9600bps                                     Sync/async          4

                        19.2Kbps                                    Sync/async          5

                        38.4Kbps                                    Sync/async          6

                        48.0Kbps                                       Sync             7

                        64.0Kbps                                       Sync             9

                       128.0Kbps                                       Sync             A

                        57.6Kbps                                      Async             C

                       115.2Kbps                                      Async             D

                         16Kbps                                     Unidentified        E

                         32Kbps                                     Unidentified        F

                             DIAGNOSTIC LED(S)

   LED        Color       Status                  Condition

   PWR        Green         On                   Power is on

   PWR        Green         Off                  Power is off

       TD     Yellow        On          Device is transmitting a steady
                                                    space

       TD     Yellow     Blinking        Device is transmitting data

    TD        Yellow        Off        Device is not transmitting data

    RD        Yellow        On        Device is receiving a steady space

    RD        Yellow     Blinking       Device is receiving pulses from
                                                   network

    RD        Yellow        Off       Device is not receiving pulses from
                                                   network

   RTS        Yellow        On                RTS signal is high

   RTS        Yellow        Off               RTS signal is low

   DCD        Yellow        On                DCD signal is high

   DCD        Yellow        Off               DCD signal is low

   LOS         Red          On             Loss of synchronization

   LOS         Red       Blinking      Synchronization not established

   LOS         Red          Off               Synchronization OK

   ERR         Red          On            Error detected on received
                                          configuration information

   ERR         Red          Off         Error not detected on received
                                          configuration information

   TST         Red          On       Device is conducting a loopback test

   TST         Red          Off       Device is not conducting a loopback
                                                     test