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# RAD DATA COMMUNICATIONS
ASMI-31 MODEM/X.21
Card Type Modem
Chip Set Unidentified
I/O Options AC power connector, 15-pin connector,
Network interface via terminal block and
RJ-45 connector
Wiring Type RJ-45 shielded twisted pair
Terminal block shielded twisted pair
Maximum Data Rate 128Kbps
Line Coding 2B1Q
Data Bus External
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|---------------------+-------+----------------------+-------|
| AC power connector | CN1 | Network interface | CN4 |
| | | via RJ-45 connector | |
|---------------------+-------+----------------------+-------|
| DTE serial port | CN2 | Reset push-button | RESET |
| (15-pin connector) | | | |
|---------------------+-------+----------------------+-------|
| Network interface | CN3 | | |
| via terminal block | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+-------+------------|
| í Loopback timing mode enabled | JP9 | Pins 3 & 4 |
| | | closed |
|---------------------------------------+-------+------------|
| Internal clock mode enabled | JP9 | Pins 2 & 3 |
| | | closed |
|---------------------------------------+-------+------------|
| External clock mode enabled | JP9 | Pins 1 & 2 |
| | | closed |
|---------------------------------------+-------+------------|
| í Remote digital DTE loopback test | JP14 | Pins 1 & 2 |
| disabled | | closed |
|---------------------------------------+-------+------------|
| Remote digital DTE loopback test | JP14 | Pins 2 & 3 |
| enabled | | closed |
|---------------------------------------+-------+------------|
| í Local analog DTE loopback test | JP15 | Pins 1 & 2 |
| disabled | | closed |
|---------------------------------------+-------+------------|
| Local analog DTE loopback test | JP15 | Pins 2 & 3 |
| enabled | | closed |
|---------------------------------------+-------+------------|
| í Signal ground is connected to the | JP18 | Pins 2 & 3 |
| frame ground | | closed |
|---------------------------------------+-------+------------|
| Signal ground is not connected to the | JP18 | Pins 1 & 2 |
| frame ground | | closed |
|---------------------------------------+-------+------------|
| í Synchronous operation mode enabled | SW6/1 | On |
|---------------------------------------+-------+------------|
| Asynchronous operation mode enabled | SW6/1 | Off |
|---------------------------------------+-------+------------|
| í 8-bit | SW6/2 | On |
|---------------------------------------+-------+------------|
| 7-bit | SW6/2 | Off |
|---------------------------------------+-------+------------|
| í Parity enable | SW6/3 | On |
|---------------------------------------+-------+------------|
| Parity disabled | SW6/3 | Off |
|---------------------------------------+-------+------------|
| í Parity even | SW6/4 | On |
|---------------------------------------+-------+------------|
| Parity odd | SW6/4 | Off |
|---------------------------------------+-------+------------|
| í 1 stop bit | SW6/5 | On |
|---------------------------------------+-------+------------|
| 2 stop bits | SW6/5 | Off |
|---------------------------------------+-------+------------|
| í DCD mode enabled | SW6/6 | On |
|---------------------------------------+-------+------------|
| CNT mode enabled | SW6/6 | Off |
|---------------------------------------+-------+------------|
| í DSR mode enabled | SW6/7 | On |
|---------------------------------------+-------+------------|
| DTR mode enabled | SW6/7 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA RATE |
|------------------------------------------------------------|
| Setting | Mode | SW7 |
|------------------------------------------------------------|
| 1200bps | Sync/async | 1 |
|------------------------------------------------------------|
| 2400bps | Sync/async | 2 |
|---------------------------+-------------------+------------|
| 4800bps | Sync/async | 3 |
|---------------------------+-------------------+------------|
| 9600bps | Sync/async | 4 |
|---------------------------+-------------------+------------|
| 19.2Kbps | Sync/async | 5 |
|---------------------------+-------------------+------------|
| 38.4Kbps | Sync/async | 6 |
|---------------------------+-------------------+------------|
| 48.0Kbps | Sync | 7 |
|---------------------------+-------------------+------------|
| í 64.0Kbps | Sync | 9 |
|---------------------------+-------------------+------------|
| 128.0Kbps | Sync | A |
|---------------------------+-------------------+------------|
| 57.6Kbps | Async | C |
|---------------------------+-------------------+------------|
| 115.2Kbps | Async | D |
|---------------------------+-------------------+------------|
| 16Kbps | Unidentified | E |
|---------------------------+-------------------+------------|
| 32Kbps | Unidentified | F |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+--------+----------+---------------------------------|
| PWR | Green | On | Power is on |
|------+--------+----------+---------------------------------|
| PWR | Green | Off | Power is off |
|------+--------+----------+---------------------------------|
| TD | Yellow | On | Device is transmitting a steady |
| | | | space |
|------+--------+----------+---------------------------------|
| TD | Yellow | Blinking | Device is transmitting data |
|------+--------+----------+---------------------------------|
| TD | Yellow | Off | Device is not transmitting data |
|------+--------+----------+---------------------------------|
| RD | Yellow | On | Device is receiving a steady |
| | | | space |
|------+--------+----------+---------------------------------|
| RD | Yellow | Blinking | Device is receiving pulses from |
| | | | network |
|------+--------+----------+---------------------------------|
| RD | Yellow | Off | Device is not receiving pulses |
| | | | from network |
|------+--------+----------+---------------------------------|
| RTS | Yellow | On | RTS signal is high |
|------+--------+----------+---------------------------------|
| RTS | Yellow | Off | RTS signal is low |
|------+--------+----------+---------------------------------|
| DCD | Yellow | On | DCD signal is high |
|------+--------+----------+---------------------------------|
| DCD | Yellow | Off | DCD signal is low |
|------+--------+----------+---------------------------------|
| LOS | Red | On | Loss of synchronization |
|------+--------+----------+---------------------------------|
| LOS | Red | Blinking | Synchronization not established |
|------+--------+----------+---------------------------------|
| LOS | Red | Off | Synchronization OK |
|------+--------+----------+---------------------------------|
| ERR | Red | On | Error detected on received |
| | | | configuration information |
|------+--------+----------+---------------------------------|
| ERR | Red | Off | Error not detected on received |
| | | | configuration information |
|------+--------+----------+---------------------------------|
| TST | Red | On | Device is conducting a loopback |
| | | | test |
|------+--------+----------+---------------------------------|
| TST | Red | Off | Device is not conducting a |
| | | | loopback test |
+------------------------------------------------------------+