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# RAD DATA COMMUNICATIONS
FOM-400
Card Type T1/E1 signal converter
Chipset Unidentified
Topology Peer-Peer
Wire Type Fiber optic cable
T1/E1 Transfer Rate 1.544Mbps/2.048Mbps
T1/E1 Protocol AMI, HDB3
Frame Type Unidentified
Data Bus Proprietary
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| T1/E1 line in | CN1 | Primary fiber optic | CN6 |
| | | transmit connector | |
|----------------------+-------+---------------------+-------|
| T1/E1 line out | CN2 | Control port (see | CN7 |
| | | pinout below) | |
|----------------------+-------+---------------------+-------|
| Secondary fiber | CN3 | DC power in | CN8 |
| optic receive | | | |
| connector | | | |
|----------------------+-------+---------------------+-------|
| Secondary fiber | CN4 | AC power in | CN9 |
| optic transmit | | | |
| connector | | | |
|----------------------+-------+---------------------+-------|
| Primary fiber optic | CN5 | Power switch | SW1 |
| receive connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CN7 PINOUT |
|------------------------------------------------------------|
| Function | Pin | Function | Pin |
|------------------+-----+-----------------------------+-----|
| Chassis ground | 1 | Primary/secondary fiber | 14 |
| | | optic channel indicator | |
| | | signal | |
|------------------+-----+-----------------------------+-----|
| Not used | 2 | Not used | 15 |
|------------------+-----+-----------------------------+-----|
| Not used | 3 | T1/E1 connection broken | 16 |
| | | relay | |
|------------------+-----+-----------------------------+-----|
| T1/E1 connection | 4 | Not used | 17 |
| broken signal | | | |
|------------------+-----+-----------------------------+-----|
| Not used | 5 | Not used | 18 |
|------------------+-----+-----------------------------+-----|
| Not used | 6 | T1/E1 connection broken | 19 |
| | | relay | |
|------------------+-----+-----------------------------+-----|
| Signal ground | 7 | Alarm condition signal | 20 |
|------------------+-----+-----------------------------+-----|
| Not used | 8 | Not used | 21 |
|------------------+-----+-----------------------------+-----|
| Not used | 9 | Primary/secondary fiber | 22 |
| | | optic channel selection | |
|------------------+-----+-----------------------------+-----|
| Not used | 10 | Secondary fiber optic | 23 |
| | | connection broken signal | |
|------------------+-----+-----------------------------+-----|
| Not used | 11 | Not used | 24 |
|------------------+-----+-----------------------------+-----|
| Not used | 12 | Primary fiber optic | 25 |
| | | connection broken signal | |
|------------------+-----+-----------------------------+-----|
| Not used | 13 | Not used | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|----------------------------------------+-------+-----------|
| Signal ground connected to chassis | JP1 | Pins 1 & |
| ground | | 2 closed |
|----------------------------------------+-------+-----------|
| Signal ground not connected to chassis | JP1 | Pins 2 & |
| ground | | 3 closed |
|----------------------------------------+-------+-----------|
| Primary fiber optic channel set for | SW2 | On |
| short-range operation | | |
|----------------------------------------+-------+-----------|
| Primary fiber optic channel set for | SW2 | Off |
| long-range operation | | |
|----------------------------------------+-------+-----------|
| Secondary fiber optic channel set for | SW3 | On |
| short-range operation | | |
|----------------------------------------+-------+-----------|
| Secondary fiber optic channel set for | SW3 | Off |
| long-range operation | | |
|----------------------------------------+-------+-----------|
| T1/E1 interface set for 100ohm or | SW4 | On |
| 120ohm balanced cable | | |
|----------------------------------------+-------+-----------|
| T1/E1 interface set for 75ohm | SW4 | Off |
| unbalanced cable | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FIBER OPTIC CHANNEL SELECTION |
|------------------------------------------------------------|
| Setting | SW5 |
|--------------------------------------+---------------------|
| ยป | Channel selected by control port | Position 2 |
|---+----------------------------------+---------------------|
| | Primary channel active | Position 1 |
|---+----------------------------------+---------------------|
| | Secondary channel active | Position 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+--------+--------+----------------------------------|
| LED1 | Green | On | AC power source is connected at |
| | | | CN9 |
|-------+--------+--------+----------------------------------|
| LED1 | Green | Off | AC power source is not connected |
| | | | at CN9 |
|-------+--------+--------+----------------------------------|
| LED2 | Green | On | Backup DC power is connected to |
| | | | CN8 |
|-------+--------+--------+----------------------------------|
| LED2 | Green | Off | Backup DC power is not connected |
| | | | to CN8 |
|-------+--------+--------+----------------------------------|
| LED3 | Red | On | Internal power supply failed |
|-------+--------+--------+----------------------------------|
| LED3 | Red | Off | Internal power supplies are good |
|-------+--------+--------+----------------------------------|
| LED4 | Green | On | DSU is receiving data |
|-------+--------+--------+----------------------------------|
| LED4 | Green | Off | DSU is not receiving data |
|-------+--------+--------+----------------------------------|
| LED5 | Green | On | DSU is transmitting data |
|-------+--------+--------+----------------------------------|
| LED5 | Green | Off | DSU is not transmitting data |
|-------+--------+--------+----------------------------------|
| LED6 | Red | On | Fiber optic synchronization lost |
|-------+--------+--------+----------------------------------|
| LED6 | Red | Off | Fiber optic synchronization good |
|-------+--------+--------+----------------------------------|
| LED7 | Yellow | On | Primary fiber optic channel in |
| | | | use |
|-------+--------+--------+----------------------------------|
| LED7 | Yellow | Off | Primary fiber optic channel not |
| | | | in use |
|-------+--------+--------+----------------------------------|
| LED8 | Red | On | Primary fiber optic channel |
| | | | receive level less than -39dBm |
|-------+--------+--------+----------------------------------|
| LED8 | Red | Off | Primary fiber optic channel |
| | | | receive level more than -39dBm |
|-------+--------+--------+----------------------------------|
| LED9 | Yellow | On | Secondary fiber optic channel in |
| | | | use |
|-------+--------+--------+----------------------------------|
| LED9 | Yellow | Off | Secondary fiber optic channel |
| | | | not in use |
|-------+--------+--------+----------------------------------|
| LED10 | Red | On | Secondary fiber optic channel |
| | | | receive level less than -39dBm |
|-------+--------+--------+----------------------------------|
| LED10 | Red | Off | Secondary fiber optic channel |
| | | | receive level more than -39dBm |
+------------------------------------------------------------+