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# RAD DATA COMMUNICATIONS
FCD-12
Card Type T1 CSU/DSU
Chip Set Unidentified
I/O Options AC power connector, 25-pin DTE/DCE ports (2),
9-pin serial port (RS-232), T1 network
interface via 15-pin connector
T1 Transfer Rate 1.544Mbps
T1 Protocol Transparent, AMI, B7ZS, B8ZS
Frame Type D4, ESF
Data Bus External
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| AC power connector | CN1 | CSU board connector | J2 |
|----------------------+-------+---------------------+-------|
| Serial port | CN2 | CSU board connector | J3 |
|----------------------+-------+---------------------+-------|
| 25-pin DTE/DCE port | CN3 | CSU board connector | J4 |
| - channel 2 | | | |
|----------------------+-------+---------------------+-------|
| 25-pin DTE/DCE port | CN4 | Power switch | SW2 |
| - channel 1 | | | |
|----------------------+-------+---------------------+-------|
| 15-pin T1 port | CN5 | | |
|------------------------------------------------------------|
| Note: |
| |
| Jumpers must be installed on pins 1&2 and 3&4 of |
| connectors J3 & J4 to maintain signal path continuity when |
| the CSU board is removed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+-------+------------|
| » | Debug self test mode disabled | JP2 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Debug self test mode enabled | JP2 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Default password enabled. | JP3 | Pins 2 & 3 |
| | Password=FCD-12 | | closed |
|---+-----------------------------------+-------+------------|
| | User password enabled | JP3 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Watchdog timer enabled | JP5 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Watchdog timer disabled | JP5 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Signal ground is connected to the | JP11 | Pins 2 & 3 |
| | frame ground | | closed |
|---+-----------------------------------+-------+------------|
| | Signal ground is not connected to | JP11 | Pins 1 & 2 |
| | the frame ground | | closed |
|---+-----------------------------------+-------+------------|
| » | Internal -5V enabled | JP20 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Grounded to pin 15 in the main | JP20 | Pins 2 & 3 |
| | link connector (CN5) | | closed |
|---+-----------------------------------+-------+------------|
| » | Allows connection of the line | JP23 | Closed |
| | controlled by JP20 to pin 15 of | | |
| | main link connector (CN5) for | | |
| | powering external device | | |
|---+-----------------------------------+-------+------------|
| | Does not allow connection of the | JP23 | Open |
| | line controlled by JP20 to pin 15 | | |
| | of main link connector (CN5) for | | |
| | powering external device | | |
|---+-----------------------------------+-------+------------|
| » | Allows connection of internal | JP24 | Closed |
| | +5V, via resistor, to pin 14 of | | |
| | main link connector (CN5) for | | |
| | powering external device | | |
|---+-----------------------------------+-------+------------|
| | Does not allow connection of | JP24 | Open |
| | internal +5V, via resistor, to | | |
| | pin 14 of main link connector | | |
| | (CN5) for powering external | | |
| | device | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CHANNEL 1 INTERFACE SELECTION |
|------------------------------------------------------------|
| interface | Setting |
|-------------------------------+----------------------------|
| » | RS-530, X.21, RS-449, | Interface changer board on |
| | RS-422 | J6 |
|---+---------------------------+----------------------------|
| | V.35 | Interface changer board on |
| | | J7 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CHANNEL 2 INTERFACE SELECTION |
|------------------------------------------------------------|
| interface | Setting |
|-------------------------------+----------------------------|
| » | RS-530, X.21, RS-449, | Interface changer board on |
| | RS-422 | J8 |
|---+---------------------------+----------------------------|
| | V.35 | Interface changer board on |
| | | J9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|----------+--------------+--------+-------------------------|
| TD1 | Unidentified | On | DSU/CSU is detecting |
| | | | pulses from the DTE on |
| | | | channel 1 |
|----------+--------------+--------+-------------------------|
| TD1 | Unidentified | Off | DSU/CSU is not |
| | | | detecting pulses from |
| | | | DTE on channel 1 |
|----------+--------------+--------+-------------------------|
| RD1 | Unidentified | On | DSU/CSU is receiving |
| | | | pulses from network on |
| | | | channel 1 |
|----------+--------------+--------+-------------------------|
| RD1 | Unidentified | Off | DSU/CSU is not |
| | | | receiving pulses from |
| | | | network on channel 1 |
|----------+--------------+--------+-------------------------|
| TD2 | Unidentified | On | DSU/CSU is detecting |
| | | | pulses from the DTE on |
| | | | channel 2 |
|----------+--------------+--------+-------------------------|
| TD2 | Unidentified | Off | DSU/CSU is not |
| | | | detecting pulses from |
| | | | DTE on channel 2 |
|----------+--------------+--------+-------------------------|
| RD2 | Unidentified | On | DSU/CSU is receiving |
| | | | pulses from network on |
| | | | channel 2 |
|----------+--------------+--------+-------------------------|
| RD2 | Unidentified | Off | DSU/CSU is not |
| | | | receiving pulses from |
| | | | network on channel 2 |
|----------+--------------+--------+-------------------------|
| RED | Unidentified | On | DSU/CSU is detecting a |
| | | | red alarm condition |
|----------+--------------+--------+-------------------------|
| RED | Unidentified | Off | DSU/CSU is not |
| | | | detecting a red alarm |
| | | | condition |
|----------+--------------+--------+-------------------------|
| YEL | Unidentified | On | DSU/CSU is detecting a |
| | | | yellow alarm condition |
|----------+--------------+--------+-------------------------|
| YEL | Unidentified | Off | DSU/CSU is not |
| | | | detecting a yellow |
| | | | alarm condition |
|----------+--------------+--------+-------------------------|
| TST | Unidentified | On | DSU or CSU loopback |
| | | | test active |
|----------+--------------+--------+-------------------------|
| TST | Unidentified | Off | DSU or CSU loopback |
| | | | test not running |
+------------------------------------------------------------+
IMG IMG 2
CSU BOARD
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| Mainboard connector | J5 | Mainboard connector | J7 |
|----------------------+-------+---------------------+-------|
| Mainboard connector | J6 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| T1 OUTPUT LEVEL SELECTION |
|------------------------------------------------------------|
| Net build | Label | Position |
|------------------------------------+---------+-------------|
| » | 0dB | SW1 | 1 |
|---+--------------------------------+---------+-------------|
| | -7.5dB | SW1 | 2 |
|---+--------------------------------+---------+-------------|
| | -15dB | SW1 | 3 |
+------------------------------------------------------------+