RAD DATA COMMUNICATIONS

FOM-T1

Modem Type             Data (synchronous/asynchronous)
Maximum Data Rate      2.048Mbps
Data Bus               External
Data Modulation        Proprietary
Protocol

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                                CONNECTIONS

        Purpose           Location            Purpose            Location

  DB-15                      CN1       Receive fiber               RX

  AC power                   CN2       Coaxial connector out       OUT

  Transmit fiber             TX        Coaxial connector in        IN

       CHASSIS TO ELECTRICAL GROUND

  Setting                    JP1

  » Connected         Pins 1 & 2 closed

  Disconnected        Pins 2 & 3 closed

           INPUT

  Setting          SW2

  Grounded         Off

  » Floating       On

                    INTERFACE

  Setting                          SW4

  » 100 Omhs-(DB-15) T1       Position 1 on

  » 120 Omhs-(DB-15) E1       Position 2 on

  75 Omhs-(BNC) E1            Position 3 on

  OPTICAL AIS SIGNAL

  Setting      SW5

  » Off        Off

  On            On

           OUTPUT

  Setting          SW3

  Grounded         Off

  » Floating       On

        RANGE

  Setting     SW1

  » Short     Off

  Long         On

                        DIAGNOSTIC LED(S)

    LED       Color      Status              Condition

    L1         Red         On               Power is on

    L1         Red         Off              Power is off

    L2         Red         On       Optical signal below -43dBm

    L2         Red         Off      All link equipment operating