RAD DATA COMMUNICATIONS

FOM-E1/T1 (DC POWER, FC CONNECTORS)

Card Type           T1/E1 interface converter
Chipset             Unidentified
Wire Type           Fiber optic cable
T1/E1 Transfer Rate 1.544Mbps/2.048Mbps
T1/E1 Protocol      B8ZS, HDB3
Frame Type          Unidentified
Data Bus            N/A

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                                CONNECTIONS

         Function           Label            Function             Label

  Unbalanced T1 signal       CN1       T1 fiber optic receive      CN4
  in via coaxial cable                 FC connector
  connector

  Unbalanced T1 signal       CN2       T1 fiber optic              CN5
  out via coaxial cable                transmit FC connector
  connector

  Balanced T1 signal         CN3       AC power in                 CN6
  in/out via DB-15
  connector

            Note:Either connector CN3 or connectors CN1 and CN2 may be
            used, but not both.

                        USER CONFIGURABLE SETTINGS

                  Setting                       Label        Position

  »   Signal ground connected to chassis         JP1         Pins 1 & 2
      ground                                                  closed

      Signal ground not connected to             JP1         Pins 2 & 3
      chassis ground                                          closed

  »   CN1 shield not connected to chassis        SW1            On
      ground

      CN1 shield connected to chassis            SW1            Off
      ground

  »   CN2 shield not connected to chassis        SW2            On
      ground

      CN2 shield connected to chassis            SW2            Off
      ground

  »   Device will transmit All Ones Signal       SW3            On
      when major alarm is detected

      Device will transmit nothing when          SW3            Off
      major alarm is detected

                      ELECTRICAL CABLE TYPE SELECTION

      Setting       JP2/A     JP2/B    JP2/C    JP2/D    JP2/E     JP2/F

       Unbalanced   Pins 3    Pins 3   Pins 3   Pins 3   Pins 3    Pins 3
        75 ohm       & 4       & 4      & 4      & 4      & 4       & 4

        Balanced    Pins 1    Pins 1   Pins 1   Pins 1   Pins 1    Pins 1
        100 ohm      & 2       & 2      & 2      & 2      & 2       & 2

  »     Balanced    Pins 2    Pins 2   Pins 2   Pins 2   Pins 2    Pins 2
        120 ohm      & 3       & 3      & 3      & 3      & 3       & 3

            Note:Pins designated are in closed position.

                                 TEST MODE

                 Setting                                SW4

  »           Normal operation                      Position 2

             Local loopback test                    Position 1

            Remote loopback test                    Position 3

                             DIAGNOSTIC LED(S)

     LED          Color         Status                Condition

     PWR          Green           On                 Power is on

     PWR          Green          Off                Power is off

     LOC         Yellow           On         Device is in local loopback
                                                      test mode

     LOC         Yellow          Off            Device is not in local
                                                 loopback test mode

     REM         Yellow           On         Device is in remote loopback
                                                      test mode

     REM         Yellow          Off           Device is not in remote
                                                 loopback test mode

     LOW           Red            On          Electrical input signal is
                                              below valid signal level

     LOW           Red           Off          Electrical input signal is
                                             within valid signal levels

    AIS1         Yellow           On         All Ones Signal received on
                                                electrical interface

    AIS1         Yellow          Off         All Ones Signal not received
                                               on electrical interface

     ERR           Red            On          Bit Error Rate of optical
                                             interface is 10 -6 or worse

     ERR           Red           Off          Bit Error Rate of optical
                                             interface is better than 10
                                                         -6

    AIS2         Yellow           On         All Ones Signal received on
                                                fiber optic interface

    AIS2         Yellow          Off         All Ones Signal not received
                                              on fiber optic interface