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

   FOM-E3, FOM-T3 (AC POWER, FC CONNECTORS)

   Card Type         T3 or E3 CSU/DSU                             
   Chipset           Unidentified                                 
   Wire Type         Fiber optic cable                            
   Transfer Rate     34.368Mbps (FOM-E3) or 44.736Mbps (FOM-T3)   
   Protocol          B8ZS, HDB3                                   
   Frame Type        Unidentified                                 
   Data Bus          N/A                                          

<gopher://bitreich.org/I/th99/t/P-R/53552-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |       Function       | Label |      Function       | Label |
   |----------------------+-------+---------------------+-------|
   | T1 fiber optic       |  CN1  | T1 signal out via   |  CN4  |
   | receive FC connector |       | 75ohm coaxial cable |       |
   |                      |       | connector           |       |
   |----------------------+-------+---------------------+-------|
   | T1 fiber optic       |  CN2  | Alarm signal        |  CN5  |
   | transmit FC          |       | connector           |       |
   | connector            |       |                     |       |
   |----------------------+-------+---------------------+-------|
   | T1 signal in via     |  CN3  | AC power in         |  CN6  |
   | 75ohm coaxial cable  |       |                     |       |
   | connector            |       |                     |       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Setting                 | Label | Position  |
   |----------------------------------------+-------+-----------|
   |>> | Signal ground connected to chassis |  JP3  | Pins 1 &  |
   |   | ground                             |       | 2 closed  |
   |---+------------------------------------+-------+-----------|
   |   | Signal ground not connected to     |  JP3  | Pins 2 &  |
   |   | chassis ground                     |       | 3 closed  |
   |---+------------------------------------+-------+-----------|
   |>> | Coaxial cable length may be up to  |  JP5  | Pins 1 &  |
   |   | 225 feet                           |       | 2 closed  |
   |---+------------------------------------+-------+-----------|
   |   | Coaxial cable length may be up to  |  JP5  | Pins 2 &  |
   |   | 450 feet                           |       | 3 closed  |
   |---+------------------------------------+-------+-----------|
   |>> | Device will transmit All Ones      |  JP8  | Pins 1 &  |
   |   | Signal when major alarm is         |       | 2 closed  |
   |   | detected                           |       |           |
   |---+------------------------------------+-------+-----------|
   |   | Device will transmit nothing when  |  JP8  | Pins 2 &  |
   |   | major alarm is detected            |       | 3 closed  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         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       |
   +------------------------------------------------------------+