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# WESTERMO TELEINDUSTRI AB
MA-42DC
Card Type Modem (asynchronous)
Chip Set Unidentified
I/O Options DC power, RS-232 serial port,
RS-422/485
Maximum Modem Rate 100Kbps
Data Modulation CCITT V.24/V.28/V.10, V.11
Protocol
Error Unidentified
Correction/Compression
Data Bus External
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------------+-------+---------------+-------|
| Power connector (terminal | CN1 | RS-232-C port | CN3 |
| block) | | | |
|----------------------------+-------+---------------+-------|
| Terminal block | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| » | 115V AC enabled | S1 | On |
|---+------------------------------------+-------+-----------|
| | 230V AC enabled | S1 | Off |
|---+------------------------------------+-------+-----------|
| » | 20ms CTS delay | S2/6 | On |
|---+------------------------------------+-------+-----------|
| | 0ms CTS delay | S2/6 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 2 OR 4 WIRE COMMUNICATION SELECTION |
|------------------------------------------------------------|
| Setting | S3/1 | S3/2 |
|--------------------------+-----------------+---------------|
| » | 4-wire | On | Off |
|------+-------------------+-----------------+---------------|
| | 2-wire | Off | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TERMINATION WITH FAIL-SAFE SELECTION |
|------------------------------------------------------------|
| Setting | S3/3 | S3/4 | S3/5 | S3/6 |
|--------------------------+--------+--------+-------+-------|
| | Termination (4-wire) | On | On | Off | Off |
|---+----------------------+--------+--------+-------+-------|
| | Termination (2-wire) | Off | Off | On | On |
|---+----------------------+--------+--------+-------+-------|
| » | No termination | Off | Off | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMITTER/CTS/DCD CONTROL SELECTION |
|------------------------------------------------------------|
| Setting | S2/1 | S2/2 | S2/3 | S2/4 | S2/5 |
|-------------------------+------+------+------+------+------|
| | Transmitter, CTS | On | Off | Off | On | Off |
| | and DCD - RTS | | | | | |
|---+---------------------+------+------+------+------+------|
| | Transmitter and CTS | On | Off | Off | Off | On |
| | - RTS, DCD - high | | | | | |
|---+---------------------+------+------+------+------+------|
| | Transmitter, CTS | Off | On | Off | On | Off |
| | and DCD - DTR | | | | | |
|---+---------------------+------+------+------+------+------|
| | Transmitter and CTS | Off | On | Off | Off | On |
| | - DTR, DCD - high | | | | | |
|---+---------------------+------+------+------+------+------|
| | Transmitter - | Off | Off | On | On | Off |
| | active, CTS - high, | | | | | |
| | DCD - low | | | | | |
|---+---------------------+------+------+------+------+------|
| » | Transmitter - | Off | Off | On | Off | On |
| | active, CTS and DCD | | | | | |
| | - high | | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|------+--------------+--------+-----------------------------|
| LED1 | Unidentified | On | Power is on |
|------+--------------+--------+-----------------------------|
| LED1 | Unidentified | Off | Power is off |
|------+--------------+--------+-----------------------------|
| LED2 | Unidentified | On | Data is being transmitted |
|------+--------------+--------+-----------------------------|
| LED2 | Unidentified | Off | Data is not being |
| | | | transmitted |
|------+--------------+--------+-----------------------------|
| LED3 | Unidentified | On | Data is being received |
|------+--------------+--------+-----------------------------|
| LED3 | Unidentified | Off | Data is not being received |
|------+--------------+--------+-----------------------------|
| LED4 | Unidentified | On | RTS signal is high |
|------+--------------+--------+-----------------------------|
| LED4 | Unidentified | Off | RTS signal is low |
|------+--------------+--------+-----------------------------|
| LED5 | Unidentified | On | CTS signal is high - device |
| | | | ready to send data |
|------+--------------+--------+-----------------------------|
| LED5 | Unidentified | Off | CTS signal is low |
|------+--------------+--------+-----------------------------|
| LED6 | Unidentified | On | Data carrier present |
|------+--------------+--------+-----------------------------|
| LED6 | Unidentified | Off | Data carrier not present - |
| | | | connection not established |
+------------------------------------------------------------+