RAD DATA COMMUNICATIONS
=======================

  FOM-E1/T1 (AC 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

<gopher://bitreich.org/I/th99/t/P-R/53458-1.png>


  +------------------------------------------------------------+
  |                        CONNECTIONS                         |
  |------------------------------------------------------------|
  |         Function         | Label |    Function     | Label |
  |--------------------------+-------+-----------------+-------|
  | Unbalanced T1 signal in  |  CN1  | T1 fiber optic  |  CN4  |
  | via coaxial cable        |       | receive FC      |       |
  | connector                |       | connector       |       |
  |--------------------------+-------+-----------------+-------|
  | Unbalanced T1 signal out |  CN2  | T1 fiber optic  |  CN5  |
  | 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 &  |
  |   | ground                             |       | 2 closed  |
  |---+------------------------------------+-------+-----------|
  |   | Signal ground not connected to     |  JP1  | Pins 2 &  |
  |   | chassis ground                     |       | 3 closed  |
  |---+------------------------------------+-------+-----------|
  |>> | CN1 shield not connected to        |  SW1  |    On     |
  |   | chassis ground                     |       |           |
  |---+------------------------------------+-------+-----------|
  |   | CN1 shield connected to chassis    |  SW1  |    Off    |
  |   | ground                             |       |           |
  |---+------------------------------------+-------+-----------|
  |>> | CN2 shield not connected to        |  SW2  |    On     |
  |   | chassis ground                     |       |           |
  |---+------------------------------------+-------+-----------|
  |   | CN2 shield connected to chassis    |  SW2  |    Off    |
  |   | ground                             |       |           |
  |---+------------------------------------+-------+-----------|
  |>> | Device will transmit All Ones      |  SW3  |    On     |
  |   | Signal 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 75  |Pins 3|Pins 3|Pins 3|Pins 3|Pins 3|Pins 3|
  | |      ohm       | & 4  | & 4  | & 4  | & 4  | & 4  | & 4  |
  |-+----------------+------+------+------+------+------+------|
  | |Balanced 100 ohm|Pins 1|Pins 1|Pins 1|Pins 1|Pins 1|Pins 1|
  | |                | & 2  | & 2  | & 2  | & 2  | & 2  | & 2  |
  |-+----------------+------+------+------+------+------+------|
  |>>|Balanced 120 ohm|Pins 2|Pins 2|Pins 2|Pins 2|Pins 2|Pins 2|
  | |                | & 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       |
  +------------------------------------------------------------+

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