(TXT) View Source
# MOTOROLA, INC.
212A
Card Type Modem (synchronous/asynchronous)
Chip Set Unidentified
Maximum Data Rate 1200bps
Data Bus External
Data Modulation Protocol Bell 212A
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| Line out | CN1 | AC power in | CN5 |
|----------------------+---------+--------------------+------|
| Line in | CN2 | Talk/data switch | SW1 |
|----------------------+---------+--------------------+------|
| RS-232/422 | CN3 | 300/1200bps switch | SW2 |
|----------------------+---------+--------------------+------|
| Unidentified | CN4 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|----------------------------------------+-------+-----------|
| í Chassis ground connected to signal | JP1 | Pins 2 & |
| ground | | 3 closed |
|----------------------------------------+-------+-----------|
| Chassis ground not connected to signal | JP1 | Pins 1 & |
| ground | | 2 closed |
|----------------------------------------+-------+-----------|
| í Transmit level set to -9 | JP2 | Pins 1 & |
| (permissive) | | 2 closed |
|----------------------------------------+-------+-----------|
| Transmit level set to programmable | JP2 | Pins 2 & |
| | | 3 closed |
|----------------------------------------+-------+-----------|
| í Factory configured - do not alter | JP5 | Pins 2 & |
| | | 3 closed |
|----------------------------------------+-------+-----------|
| í Modem operates in originate mode | S1/1 | Off |
| when forced to manual | | |
|----------------------------------------+-------+-----------|
| Modem operates in answer mode when | S1/1 | On |
| forced to manual | | |
|----------------------------------------+-------+-----------|
| í Modem auto-detects answer/originate | S1/2 | Off |
| mode | | |
|----------------------------------------+-------+-----------|
| Manual answer/originate mode | S1/2 | On |
|----------------------------------------+-------+-----------|
| í Line will not be set busy during | S1/3 | Off |
| test modes | | |
|----------------------------------------+-------+-----------|
| Line will be set busy during test | S1/3 | On |
| modes | | |
|----------------------------------------+-------+-----------|
| í Disconnect after 150ms loss of | S1/4 | On |
| carrier | | |
|----------------------------------------+-------+-----------|
| Disconnect after 18s loss of carrier | S1/4 | Off |
|----------------------------------------+-------+-----------|
| í Auto-answer enabled | S1/5 | On |
|----------------------------------------+-------+-----------|
| Auto-answer disabled | S1/5 | Off |
|----------------------------------------+-------+-----------|
| í Disconnect modem on low DTR | S1/6 | On |
|----------------------------------------+-------+-----------|
| Do not disconnect modem on low DTR | S1/6 | Off |
|----------------------------------------+-------+-----------|
| í Disconnect modem on receipt of a | S1/7 | On |
| long space | | |
|----------------------------------------+-------+-----------|
| Do not disconnect modem on receipt of | S1/7 | Off |
| a long space | | |
|----------------------------------------+-------+-----------|
| í Switched-line mode | S1/8 | Off |
|----------------------------------------+-------+-----------|
| Leased-line mode | S1/8 | On |
|----------------------------------------+-------+-----------|
| í DTR normal | S2/1 | Off |
|----------------------------------------+-------+-----------|
| DTR used for off/on hook in manual | S2/1 | On |
| answer/originate | | |
|----------------------------------------+-------+-----------|
| í Factory configured - do not alter | S2/2 | N/A |
|----------------------------------------+-------+-----------|
| í Factory configured - do not alter | S2/3 | N/A |
|----------------------------------------+-------+-----------|
| í Factory configured - do not alter | S2/4 | N/A |
|----------------------------------------+-------+-----------|
| í Factory configured - do not alter | S2/5 | N/A |
|----------------------------------------+-------+-----------|
| í Factory configured - do not alter | S2/6 | N/A |
|----------------------------------------+-------+-----------|
| í DTR normal | S3/1 | Off |
|----------------------------------------+-------+-----------|
| DTR forced high | S3/1 | On |
|----------------------------------------+-------+-----------|
| í Pin 23 of RS-232 port ignored | S3/2 | Off |
|----------------------------------------+-------+-----------|
| Speed set to 1200bps when pin 23 of | S3/2 | On |
| RS-232 port is high | | |
|----------------------------------------+-------+-----------|
| í Pin 12 of RS-232 port has no | S3/3 | Off |
| function | | |
|----------------------------------------+-------+-----------|
| Pin 12 of RS-232 port high indicates | S3/3 | On |
| speed set to 1200bps | | |
|----------------------------------------+-------+-----------|
| í Analog loopback test performed when | S3/4 | On |
| pin 25 of RS-232 port is high | | |
|----------------------------------------+-------+-----------|
| Pin 25 of RS-232 port ignored | S3/4 | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HANDSET POLARITY |
|------------------------------------------------------------|
| Setting | JP3 | JP4 |
|------------------+--------------------+--------------------|
| í Normal | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Reversed | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA FORMAT |
|------------------------------------------------------------|
| Setting | S2/7 | S2/8 |
|---------------------------------+-------------+------------|
| 9-bit characters, async mode | Off | Off |
|---------------------------------+-------------+------------|
| 10-bit characters, async mode | Off | On |
|---------------------------------+-------------+------------|
| í 11-bit characters, async mode | On | Off |
|---------------------------------+-------------+------------|
| Synchronous mode | On | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CLOCK SOURCE |
|------------------------------------------------------------|
| Setting | JP6/A | JP6/B | JP6/C |
|---------------+--------------+--------------+--------------|
| Slave | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| Internal | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| External | Closed | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+-------+----------+---------------------------------|
| MR/RI | Red | On | Power is on |
|-------+-------+----------+---------------------------------|
| MR/RI | Red | Off | Power is off |
|-------+-------+----------+---------------------------------|
| MR/RI | Red | Blinking | Phone is ringing |
|-------+-------+----------+---------------------------------|
| TR | Red | On | DTR signal is high |
|-------+-------+----------+---------------------------------|
| TR | Red | Off | DTR signal is low |
|-------+-------+----------+---------------------------------|
| HS | Red | On | Modem is operating at 1200bps |
|-------+-------+----------+---------------------------------|
| HS | Red | Off | Modem is operating at 300bps |
|-------+-------+----------+---------------------------------|
| RD | Red | On | Modem is receiving data |
|-------+-------+----------+---------------------------------|
| RD | Red | Off | Modem is not receiving data |
|-------+-------+----------+---------------------------------|
| TD | Red | On | Modem is transmitting data |
|-------+-------+----------+---------------------------------|
| TD | Red | Off | Modem is not transmitting data |
|-------+-------+----------+---------------------------------|
| TM | Red | On | Modem is in test mode |
|-------+-------+----------+---------------------------------|
| TM | Red | Off | Modem is not in test mode |
|------------------------------------------------------------|
| Note: The functions of MC and LED1 are unidentified. |
+------------------------------------------------------------+