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# RAD DATA COMMUNICATIONS
FCD-2 (RS-530)
Card Type E1 LTU
Chip Set Unidentified
I/O Options AC power connector, RS-530 DTE port, serial
port,
E1 network interface via 15-pin connector,
BNC connectors (2)
E1 Transfer Rate 2.048Mbps
E1 Protocol HDB3
Frame Type CRC-4
Data Bus External
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| AC power connector | CN1 | LTU board connector | J3 |
|----------------------+-------+---------------------+-------|
| Serial port | CN2 | LTU board connector | J4 |
|----------------------+-------+---------------------+-------|
| 25-pin V.35 DTE port | CN3 | Power switch | SW2 |
|----------------------+-------+---------------------+-------|
| 15-pin E1 port | CN4 | BNC connector - | RX |
| | | receive | |
|----------------------+-------+---------------------+-------|
| LTU board connector | J2 | BNC connector - | TX |
| | | transmit | |
|------------------------------------------------------------|
| Note: |
| |
| Jumpers must be installed on pins 1&2 and 3&4 of |
| connectors J3 & J4 to maintain signal path continuity when |
| the LTU 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 | JP4 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Watchdog timer disabled | JP4 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Signal ground is connected to the | JP12 | Pins 2 & 3 |
| | frame ground | | closed |
|---+-----------------------------------+-------+------------|
| | Signal ground is not connected to | JP12 | Pins 1 & 2 |
| | the frame ground | | closed |
|---+-----------------------------------+-------+------------|
| » | Internal -5V enabled | JP22 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Grounded to pin 15 in the main | JP22 | Pins 2 & 3 |
| | link connector (CN4) | | closed |
|---+-----------------------------------+-------+------------|
| » | Transmit side ground reference | JP23 | Open |
| | set for balanced interface | | |
|---+-----------------------------------+-------+------------|
| | Transmit side ground reference | JP23 | Closed |
| | set for unbalanced interface | | |
|---+-----------------------------------+-------+------------|
| » | Frame ground is connected to main | JP24 | Closed |
| | link ground reference | | |
|---+-----------------------------------+-------+------------|
| | Frame ground is not connected to | JP24 | Open |
| | main link ground reference | | |
|---+-----------------------------------+-------+------------|
| » | Allows connection of the line | JP25 | Closed |
| | controlled by JP22 to pin 15 of | | |
| | main link connector (CN4) for | | |
| | powering external device | | |
|---+-----------------------------------+-------+------------|
| | Does not allow connection of the | JP25 | Open |
| | line controlled by JP22 to pin 15 | | |
| | of main link connector (CN4) for | | |
| | powering external device | | |
|---+-----------------------------------+-------+------------|
| » | Allows connection of internal | JP26 | Closed |
| | +5V, via resistor, to pin 14 of | | |
| | main link connector (CN4) for | | |
| | powering external device | | |
|---+-----------------------------------+-------+------------|
| | Does not allow connection of | JP26 | Open |
| | internal +5V, via resistor, to | | |
| | pin 14 of main link connector | | |
| | (CN4) for powering external | | |
| | device | | |
|---+-----------------------------------+-------+------------|
| » | Receive side ground reference set | JP27 | Open |
| | for balanced interface | | |
|---+-----------------------------------+-------+------------|
| | Receive side ground reference set | JP27 | Closed |
| | for unbalanced interface | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TERMINATION |
|------------------------------------------------------------|
| Function | JP18 | JP19 | JP20 | JP21 |
|------------------------+--------+--------+--------+--------|
| » | Balanced interface | Pins 1 | Pins 1 | Pins 1 | Pins 1 |
| | compatibility | & 2 | & 2 | & 2 | & 2 |
| | enabled | | | | |
|---+--------------------+--------+--------+--------+--------|
| | Unbalanced | Pins 2 | Pins 2 | Pins 2 | Pins 2 |
| | interface | & 3 | & 3 | & 3 | & 3 |
| | compatibility | | | | |
| | enabled | | | | |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|----------+--------------+--------+-------------------------|
| RTS | Unidentified | On | Control input line in |
| | | | RS-530 DTE port is high |
|----------+--------------+--------+-------------------------|
| RTS | Unidentified | Off | Control input line in |
| | | | RS-530 DTE port is low |
|----------+--------------+--------+-------------------------|
| DCD | Unidentified | On | Indication output line |
| | | | in RS-530 DTE port is |
| | | | high |
|----------+--------------+--------+-------------------------|
| DCD | Unidentified | Off | Indication output line |
| | | | in RS-530 DTE port is |
| | | | low |
|----------+--------------+--------+-------------------------|
| TD | Unidentified | On | Device is detecting |
| | | | pulses from the local |
| | | | DTE |
|----------+--------------+--------+-------------------------|
| TD | Unidentified | Off | Device is not detecting |
| | | | pulses from the local |
| | | | DTE |
|----------+--------------+--------+-------------------------|
| RD | Unidentified | On | Device is receiving |
| | | | pulses from network |
|----------+--------------+--------+-------------------------|
| RD | Unidentified | Off | Device is not receiving |
| | | | pulses from network |
|----------+--------------+--------+-------------------------|
| LOC | Unidentified | On | Local synchronization |
| | | | lost |
|----------+--------------+--------+-------------------------|
| LOC | Unidentified | Off | Local synchronization |
| | | | OK |
|----------+--------------+--------+-------------------------|
| REM | Unidentified | On | Remote synchronization |
| | | | lost |
|----------+--------------+--------+-------------------------|
| REM | Unidentified | Off | Remote synchronization |
| | | | OK |
|----------+--------------+--------+-------------------------|
| TST | Unidentified | On | Device loopback test |
| | | | active |
|----------+--------------+--------+-------------------------|
| TST | Unidentified | Off | device loopback test |
| | | | not running |
+------------------------------------------------------------+
(IMG) IMG 2
LTU BOARD
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| Mainboard connector | J5 | Mainboard connector | J7 |
|----------------------+-------+---------------------+-------|
| Mainboard connector | J6 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|----------------------------------------+--------+----------|
| » | Factory configured - do not alter | JP5 | Open |
|---+------------------------------------+--------+----------|
| » | Factory configured - do not alter | JP6 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| E1 OUTPUT LEVEL SELECTIO |
|------------------------------------------------------------|
| Net build | Label | Position |
|------------------------------------+---------+-------------|
| » | 0dB | SW1 | 1 |
|---+--------------------------------+---------+-------------|
| | -7.5dB | SW1 | 2 |
|---+--------------------------------+---------+-------------|
| | -15dB | SW1 | 3 |
+------------------------------------------------------------+