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# RAD DATA COMMUNICATIONS
FCD-E1/1
Card Type E1 CSU/DSU
Chip Set Unidentified
I/O Options AC power connector, 25-pin port (RS-530), BNC
connectors (2),
9-pin serial ports (2 RS-232), E1 network
interface via RJ-45 connector
E1 Transfer Rate 2.048Kbps
E1 Protocol HDB3
Frame type CRC-4
Data Bus External
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| AC power connector | CN1 | Header connector to | CN8 |
| | | CH2 interface board | |
|----------------------+-------+---------------------+-------|
| DTE serial port | CN2 | Header connector to | CN9 |
| | | CH2 interface board | |
|----------------------+-------+---------------------+-------|
| 25-pin connector - | CN3 | DCE serial port | CN10 |
| channel 1 | | | |
|----------------------+-------+---------------------+-------|
| Network port via | CN4 | Power switch | SW2 |
| RJ-48 connector | | | |
|----------------------+-------+---------------------+-------|
| Header connector to | CN5 | BNC connector - | RX |
| sub interface board | | receive | |
|----------------------+-------+---------------------+-------|
| Header connector to | CN6 | BNC connector - | TX |
| CH2 interface board | | transmit | |
|----------------------+-------+---------------------+-------|
| Header connector to | CN7 | | |
| CH2 interface board | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-----------------------------------------+-------+----------|
| » | Signal ground is connected to the | JP8 | Closed |
| | frame ground | | |
|---+-------------------------------------+-------+----------|
| | Signal ground is not connected to | JP8 | Open |
| | the frame ground | | |
|---+-------------------------------------+-------+----------|
| » | Transmit side ground reference set | JP9 | Open |
| | for balanced interface | | |
|---+-------------------------------------+-------+----------|
| | Transmit side ground reference set | JP9 | Closed |
| | for unbalanced interface | | |
|---+-------------------------------------+-------+----------|
| » | Receive side ground reference set | JP10 | Open |
| | for balanced interface | | |
|---+-------------------------------------+-------+----------|
| | Receive side ground reference set | JP10 | Closed |
| | for unbalanced interface | | |
|---+-------------------------------------+-------+----------|
| » | Front panel push-buttons enabled | JP77 | Open |
|---+-------------------------------------+-------+----------|
| | Front panel push-buttons disabled | JP77 | Closed |
|---+-------------------------------------+-------+----------|
| » | Supervisor ports operate according | S1/1 | Off |
| | to user-defined parameters | | |
|---+-------------------------------------+-------+----------|
| | CSU/DSU uses default parameters | S1/1 | On |
| | stored in its EPROM | | |
|---+-------------------------------------+-------+----------|
| » | Default password enabled. | S1/2 | On |
| | Password=RAD | | |
|---+-------------------------------------+-------+----------|
| | User password enabled | S1/2 | Off |
|---+-------------------------------------+-------+----------|
| » | Loads user-selected parameters from | S1/3 | Off |
| | NVRAM on power-up | | |
|---+-------------------------------------+-------+----------|
| | Loads default parameters stored in | S1/3 | On |
| | its EPROM on power-up | | |
|---+-------------------------------------+-------+----------|
| » | Factory configured - do not alter | S1/4 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAIN LINK INTERFACE |
|------------------------------------------------------------|
| Function | JP7 |JP12/A|JP12/B|JP12/C|JP12/D|JP33 |JP35 |
|-------------+------+------+------+------+------+-----+-----|
|»| Balanced | Open | Open |Closed| Open | Open |2 & 3|2 & 3|
| | interface | | | | | | | |
|-+-----------+------+------+------+------+------+-----+-----|
| |Unbalanced |Closed| Open | Open | Open |Closed|1 & 2|1 & 2|
| | interface | | | | | | | |
|------------------------------------------------------------|
|Note: Pins designated are in the closed position |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ALARM RELAY |
|------------------------------------------------------------|
| Function | JP51 | JP52 |
|--------------------------------------------+-------+-------|
| » | Alarm relay disconnected. DTE port | 2 & 3 | 2 & 3 |
| | (CN2) provides full functionality | | |
|---+----------------------------------------+-------+-------|
| | Alarm relay connected instead of DCD | 1 & 2 | 1 & 2 |
| | and CTS lines | | |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|----------+--------------+--------+-------------------------|
| LOC1 | Unidentified | On | Local synchronization |
| | | | lost on main link |
|----------+--------------+--------+-------------------------|
| LOC1 | Unidentified | Off | Local synchronization |
| | | | OK on main link |
|----------+--------------+--------+-------------------------|
| REM1 | Unidentified | On | Remote synchronization |
| | | | lost on main link |
|----------+--------------+--------+-------------------------|
| REM1 | Unidentified | Off | Remote synchronization |
| | | | OK on main link |
|----------+--------------+--------+-------------------------|
| LOC2 | Unidentified | On | Local synchronization |
| | | | lost on sub link |
|----------+--------------+--------+-------------------------|
| LOC2 | Unidentified | Off | Local synchronization |
| | | | OK on sub link |
|----------+--------------+--------+-------------------------|
| REM2 | Unidentified | On | Remote synchronization |
| | | | lost on sub link |
|----------+--------------+--------+-------------------------|
| REM2 | Unidentified | Off | Remote synchronization |
| | | | OK on sub link |
|----------+--------------+--------+-------------------------|
| ALM | Unidentified | On | Alarm condition |
| | | | detected on network |
|----------+--------------+--------+-------------------------|
| ALM | Unidentified | Off | Alarm condition not |
| | | | detected on network |
|----------+--------------+--------+-------------------------|
| TST | Unidentified | On | Device loopback test |
| | | | active |
|----------+--------------+--------+-------------------------|
| TST | Unidentified | Off | Device loopback test |
| | | | not running |
+------------------------------------------------------------+
IMG IMG 2
VER. X.21
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label |
|--------------------------------------------+---------------|
| 15-pin connector - channel 1 | CN11 |
+------------------------------------------------------------+
IMG IMG 3
VER. V.35
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label |
|--------------------------------------------+---------------|
| 34-pin connector - channel 1 | CN12 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTE |
|------------------------------------------------------------|
| CN11 and CN12 are modules which can be used to replace |
| CN3, allowing for various DTE/DCE interfaces. |
+------------------------------------------------------------+