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# WESTERN DATACOM COMPANY, INC.
WORLDCOM 202
Card Type Modem (asynchronous)
Chip Set Unidentified
Maximum Data Rate 1200bps
Data Bus External
Data Modulation Protocol Bell 202
ITU-T V.23
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| Serial port | CN1 | Line in/out | CN4 |
|-----------------------+-------+------------------+---------|
| DC power | CN2 | Volume control | R1 |
|-----------------------+-------+------------------+---------|
| Line in/out | CN3 | Power switch | SW1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-----------------------------------------+-------+----------|
| í Auto-answer enabled | SW2/1 | On |
|-----------------------------------------+-------+----------|
| Auto-answer disabled | SW2/1 | Off |
|-----------------------------------------+-------+----------|
| í Factory configured - do not alter | SW2/4 | N/A |
|-----------------------------------------+-------+----------|
| í Factory configured - do not alter | SW2/5 | N/A |
|-----------------------------------------+-------+----------|
| í Power-up with user configuration | SW2/6 | Off |
|-----------------------------------------+-------+----------|
| Power-up with factory configuration | SW2/6 | On |
|-----------------------------------------+-------+----------|
| í RTS signal normal | SW2/7 | Off |
|-----------------------------------------+-------+----------|
| RTS signal forced high | SW2/7 | On |
|-----------------------------------------+-------+----------|
| í DTR signal normal | SW2/8 | Off |
|-----------------------------------------+-------+----------|
| DTR signal forced high | SW2/8 | On |
|-----------------------------------------+-------+----------|
| í Factory configuration 0 - normal use | SW3 | Off |
|-----------------------------------------+-------+----------|
| Factory configuration 1 - for analog | SW3 | On |
| loop-back tests | | |
|------------------------------------------------------------|
| Note: The exact location and orientation of SW2 is |
| unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SECONDARY WIRE PAIR (MODE INDICATE) |
|------------------------------------------------------------|
| Setting | SW2/2 | SW2/3 |
|---------------------------+----------------+---------------|
| í Secondary pair not used | Off | Off |
|---------------------------+----------------+---------------|
| Secondary pair used | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|--------+--------------+--------+---------------------------|
| LED1 | Unidentified | On | Modem is off-hook |
|--------+--------------+--------+---------------------------|
| LED1 | Unidentified | Off | Modem is on-hook |
|--------+--------------+--------+---------------------------|
| LED2 | Unidentified | On | DSR signal is high |
|--------+--------------+--------+---------------------------|
| LED2 | Unidentified | Off | DSR signal is low |
|--------+--------------+--------+---------------------------|
| LED3 | Unidentified | On | DTR signal is high |
|--------+--------------+--------+---------------------------|
| LED3 | Unidentified | Off | DTR signal is low |
|--------+--------------+--------+---------------------------|
| LED4 | Unidentified | On | RTS signal is high |
|--------+--------------+--------+---------------------------|
| LED4 | Unidentified | Off | RTS signal is low |
+------------------------------------------------------------+