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# RAD DATA COMMUNICATIONS
FCD-2L (DC)
Card Type E1 CSU/DSU
Chip Set Unidentified
I/O Options DC power connector, 25-pin connector
(RS-530),
E1 network interface via RJ-48 connector, BNC
connectors (2)
Wiring Type RJ-48 120ohm shielded twisted pair
BNC 75ohm coaxial
E1 Transfer Rate 2.048Mbps
E1 Protocol HDB3
Frame type 256N, 256S
Data Bus External
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|---------------------+-------+----------------------+-------|
| Analog loopback | ANA | ATE connector | J1 |
| activation | | (maintenance only) | |
| push-button | | | |
|---------------------+-------+----------------------+-------|
| Alarm clear | CLR | Test pattern | PATT |
| push-button | | activation | |
| | | push-button | |
|---------------------+-------+----------------------+-------|
| DC power connector | CN1 | Remote digital | REM |
| | | loopback activation | |
| | | push-button | |
|---------------------+-------+----------------------+-------|
| DTE/DCE serial port | CN2 | BNC connector - | RX |
| (25-pin connector) | | receive | |
|---------------------+-------+----------------------+-------|
| Network interface | CN3 | BNC connector - | TX |
| via RJ-48 connector | | transmit | |
|---------------------+-------+----------------------+-------|
| Digital loopback | DIG | Power switch | SW2 |
| activation | | | |
| push-button | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-------------------------------------+-------+--------------|
| » | Front panel switches enabled | JP2 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Front panel switches disabled | JP2 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Watchdog enabled | JP5 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Watchdog disabled | JP5 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Debug self test mode disabled | JP7 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Debug self test mode enabled | JP7 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Phantom power feeding is | JP19 | Open |
| | disabled | | |
|---+---------------------------------+-------+--------------|
| | Phantom power feeding is | JP19 | Closed |
| | enabled | | |
|---+---------------------------------+-------+--------------|
| » | Signal ground is connected to | JP23 | Pins 2 & 3 |
| | the frame ground | | closed |
|---+---------------------------------+-------+--------------|
| | Signal ground is not connected | JP23 | Pins 1 & 2 |
| | to the frame ground | | closed |
|---+---------------------------------+-------+--------------|
| » | E1 interface not referenced to | JP26 | Open |
| | frame ground | | |
|---+---------------------------------+-------+--------------|
| | E1 interface referenced to | JP26 | Closed |
| | frame ground | | |
|---+---------------------------------+-------+--------------|
| » | E1 interface receive signal not | JP27 | Open |
| | referenced to frame ground | | |
|---+---------------------------------+-------+--------------|
| | E1 interface receive signal | JP27 | Closed |
| | referenced to frame ground | | |
|---+---------------------------------+-------+--------------|
| » | E1 interface transmit signal | JP32 | Open |
| | not referenced to frame ground | | |
|---+---------------------------------+-------+--------------|
| | E1 interface transmit signal | JP32 | Closed |
| | referenced to frame ground | | |
|---+---------------------------------+-------+--------------|
| » | Unbalanced network interface | JP204 | Open |
| | not grounded | | |
|---+---------------------------------+-------+--------------|
| | Unbalanced network interface | JP204 | Closed |
| | grounded | | |
|---+---------------------------------+-------+--------------|
| » | CTS forced high | S7/3 | On |
|---+---------------------------------+-------+--------------|
| | CTS follows remote RTS | S7/3 | Off |
|---+---------------------------------+-------+--------------|
| » | Fast synchronization timing (1 | S7/4 | Off |
| | sec) | | |
|---+---------------------------------+-------+--------------|
| | AT&T TR-62411 synchronization | S7/4 | On |
| | timing (10 sec) | | |
|---+---------------------------------+-------+--------------|
| » | 256S multiframe mode enabled | S7/5 | Off |
|---+---------------------------------+-------+--------------|
| | 256N multiframe mode enabled | S7/5 | On |
|---+---------------------------------+-------+--------------|
| » | TS16 is reserved | S7/6 | Off |
|---+---------------------------------+-------+--------------|
| | TS16 is enabled to carry user's | S7/6 | On |
| | data | | |
|---+---------------------------------+-------+--------------|
| » | CRC-4 enabled | S7/7 | Off |
|---+---------------------------------+-------+--------------|
| | CRC-4 disabled | S7/7 | On |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | S7/8 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Nx64 mode | S11/1 | Off |
|---+---------------------------------+-------+--------------|
| | Nx56 mode | S11/1 | On |
|---+---------------------------------+-------+--------------|
| » | Internal clock mode enabled | S11/2 | Off |
|---+---------------------------------+-------+--------------|
| | Loopback timing mode enabled | S11/2 | On |
|---+---------------------------------+-------+--------------|
| » | Time slot allocation is | S11/3 | On |
| | sequential, starting from slot | | |
| | 1 | | |
|---+---------------------------------+-------+--------------|
| | Data is inserted in alternate | S11/3 | Off |
| | time slots, starting from slot | | |
| | 1 | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | S11/4 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BAUD RATE |
|------------------------------------------------------------|
| Setting | S6 | S9 |
|---------------------------------------+-----------+--------|
| Unframed | 0 | 0 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 1x64 | 0 | 1 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 2x64 | 0 | 2 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 3x64 | 0 | 3 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 4x64 | 0 | 4 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 26x64 | 2 | 6 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 27x64 | 2 | 7 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 28x64 | 2 | 8 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 29x64 | 2 | 9 |
|---------------------------------------+-----------+--------|
| Operational baud rate set to 30x64 | 3 | 0 |
|------------------------------------------------------------|
| Note: |
| |
| Multiples of 56Kbps or 64Kbps, up to 30 may be selected, |
| for a maximum of 1680Kbps for multiples of 56Kbps or a |
| maximum of 1920Kbps for multiples of 64Kbps. 31-99 are not |
| used. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DTE INTERFACE |
|------------------------------------------------------------|
| Function | J2 | J3 | J4 | J5 |
|------------+-----------+-----------+-----------+-----------|
| V.35 DTE | Open | Open | Board | Board |
| interface | | | connected | connected |
|------------+-----------+-----------+-----------+-----------|
| RS-422 | Board | Board | Open | Open |
| interface | connected | connected | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAIN LINK INTERFACE |
|------------------------------------------------------------|
| Function |JP12 |JP13 |JP20/A|JP20/B|JP20/C|JP20/D|
|--------------------+-----+-----+------+------+------+------|
|»|Balanced interface|1 & 2|1 & 2| Open | Open |Closed| Open |
|-+------------------+-----+-----+------+------+------+------|
| | Unbalanced |1 & 2|1 & 2|Closed| Open | Open | Open |
| | interface | | | | | | |
|------------------------------------------------------------|
|Note: Pins designated are in the closed position |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IDLE CODE |
|------------------------------------------------------------|
| Setting |S8/1 |S8/2 |S8/3 |S8/4 |S8/5 |S8/6 |S8/7 |S8/8 |
|------------+-----+-----+-----+-----+-----+-----+-----+-----|
|»| Default | Off | Off | Off | Off | Off | Off | Off | Off |
| |idle code | | | | | | | | |
|------------------------------------------------------------|
|Note: On=0, Off=1. Switch S8/1 is the most significant bit. |
|Switch S8/2 is the least significant bit. Values are |
|currently unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL COMMUNICATION |
|------------------------------------------------------------|
| Setting | JP16 | JP17 |
|---------------------------------+-------------+------------|
| » | Serial communication for | Pins 1 | Pins 1 & 2 |
| | maintenance purposes | & 2 | closed |
| | enabled | closed | |
|---+-----------------------------+-------------+------------|
| | Reserved | Pins 2 | Pins 2 & 3 |
| | | & 3 | closed |
| | | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PORT TIMING |
|------------------------------------------------------------|
| Setting | S7/1 | S7/2 |
|---------------------------------+------------+-------------|
| | DTE1 port timing | On | On |
|---+-----------------------------+------------+-------------|
| » | DCE port timing | On | Off |
|---+-----------------------------+------------+-------------|
| | DTE2 port timing | Off | On |
|---+-----------------------------+------------+-------------|
| | Not used | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| E1 TRANSMIT LEVEL SELECTION |
|------------------------------------------------------------|
| Net build | Label | Position |
|---------------------------------+------------+-------------|
| » | 0dBm | S12 | 0 |
|---+-----------------------------+------------+-------------|
| | -7.5dBm | S12 | 1 |
|---+-----------------------------+------------+-------------|
| | -15dBm | S12 | 2 |
|---+-----------------------------+------------+-------------|
| | -22.5dBm | S12 | 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|----------+--------------+--------+-------------------------|
| PWR | Unidentified | On | Power is on |
|----------+--------------+--------+-------------------------|
| PWR | Unidentified | Off | Power is off |
|----------+--------------+--------+-------------------------|
| RTS | Unidentified | On | RTS input line is on |
|----------+--------------+--------+-------------------------|
| RTS | Unidentified | Off | RTS input line is off |
|----------+--------------+--------+-------------------------|
| TST | Unidentified | On | Device is conducting a |
| | | | test |
|----------+--------------+--------+-------------------------|
| TST | Unidentified | Off | Device is not |
| | | | conducting a test |
|----------+--------------+--------+-------------------------|
| ERR | Unidentified | On | Error detected in the |
| | | | test pattern |
|----------+--------------+--------+-------------------------|
| ERR | Unidentified | Off | Error not detected in |
| | | | the test pattern |
|----------+--------------+--------+-------------------------|
| LOC | Unidentified | On | Synchronization lost on |
| | | | local FCD-2L |
|----------+--------------+--------+-------------------------|
| LOC | Unidentified | Off | Synchronization not |
| | | | lost on local FCD-2L |
|----------+--------------+--------+-------------------------|
| REM | Unidentified | On | Synchronization lost on |
| | | | remote FCD-2L |
|----------+--------------+--------+-------------------------|
| REM | Unidentified | Off | Synchronization not |
| | | | lost on remote FCD-2L |
|----------+--------------+--------+-------------------------|
| 10 | Unidentified | On | BER on the network link |
(IMG) IMG 2
| | | | exceeds 10 [3][IMG] |
|----------+--------------+--------+-------------------------|
| 10 | Unidentified | Off | BER on the network link |
(IMG) IMG 4
| | | | does not exceed 10 |
(IMG) IMG 5
| | | | |
|----------+--------------+--------+-------------------------|
| MIN | Unidentified | On | Minor alarm condition |
| | | | detected. Remains lit |
| | | | until fault condition |
| | | | disappears, or CLR |
| | | | button is pushed |
|----------+--------------+--------+-------------------------|
| MIN | Unidentified | Off | Minor alarm condition |
| | | | not detected |
|----------+--------------+--------+-------------------------|
| MAJ | Unidentified | On | Major alarm condition |
| | | | detected. Remains lit |
| | | | until fault condition |
| | | | disappears, or CLR |
| | | | button is pushed |
|----------+--------------+--------+-------------------------|
| MAJ | Unidentified | Off | Major alarm condition |
| | | | not detected |
+------------------------------------------------------------+