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

   FOM-E1/T1 (DC POWER, ST 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/53457-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |         Function         | Label |    Function     | Label |
   |--------------------------+-------+-----------------+-------|
   | Unbalanced T1 signal in  |  CN1  | T1 fiber optic  |  CN4  |
   | via coaxial cable        |       | receive ST      |       |
   | connector                |       | connector       |       |
   |--------------------------+-------+-----------------+-------|
   | Unbalanced T1 signal out |  CN2  | T1 fiber optic  |  CN5  |
   | via coaxial cable        |       | transmit ST     |       |
   | connector                |       | connector       |       |
   |--------------------------+-------+-----------------+-------|
   | Balanced T1 signal       |  CN3  | DC 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       |
   +------------------------------------------------------------+