(TXT) View Source
# PRACTICAL PERIPHERALS, INC.
PM1200
Card Type Modem (asynchronous)
Chip Set Unidentified
Maximum Data Rate 1200bps
Data Bus 8-bit ISA
Data Modulation Protocol Bell 103/212A
ITU-T V.22
V2038
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-----------------------------------------+-------+----------|
| DTR is ignored | SW1/E | On |
|-----------------------------------------+-------+----------|
| DTR normal | SW1/E | Off |
|-----------------------------------------+-------+----------|
| DCD forced high | SW1/F | On |
|-----------------------------------------+-------+----------|
| DCD normal | SW1/F | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT ADDRESS |
|------------------------------------------------------------|
| Setting | IRQ | SW1/A | SW1/B | SW1/C | SW1/D |
|--------------+-------+---------+---------+--------+--------|
| COM1 (3F8h) | 4 | On | On | On | Off |
|--------------+-------+---------+---------+--------+--------|
| íCOM2 (2F8h) | 3 | Off | On | Off | On |
|--------------+-------+---------+---------+--------+--------|
| COM3 (3E8h) | 4 | On | Off | On | Off |
|--------------+-------+---------+---------+--------+--------|
| COM4 (2E8h) | 3 | Off | Off | Off | On |
+------------------------------------------------------------+
+-------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|-------------------------------|
| Diagram not available |
+-------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S13 |
|------------------------------------------------------------|
| Format: | AT [cmds] S13=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0-220 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls parity, data bits, and buffer |
| | overflow flag. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 1, 0 | 00 | Not used |
|------+-------+---------------------------------------------|
| 2 | 0 | Parity disabled |
| | | |
| | 1 | Parity enabled |
|------+-------+---------------------------------------------|
| 3 | 0 | Odd parity |
| | | |
| | 1 | Even parity |
|------+-------+---------------------------------------------|
| 4 | 0 | 7 data bits |
| | | |
| | 1 | 8 data bits |
|------+-------+---------------------------------------------|
| 5 | 0 | Not used |
|------+-------+---------------------------------------------|
| 6 | 0 | Buffer overflow flag disabled |
| | | |
| | 1 | Buffer overflow flag enabled |
|------+-------+---------------------------------------------|
| 7 | 0 | Space parity |
| | | |
| | 1 | Mark parity |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S14 |
|------------------------------------------------------------|
| Format: | AT [cmds] S14=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0-174 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls echo, result codes and display, |
| | pulse dial make/break ratio, ITU-T/Bell |
| | modes, and the long space disconnect |
| | function. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | í 0 | Not used |
|------+-------+---------------------------------------------|
| 1 | 0 | Command echo disabled |
| | | |
| | í 1 | Command echo enabled |
|------+-------+---------------------------------------------|
| 2 | í 0 | Result codes enabled |
| | | |
| | 1 | Result codes disabled |
|------+-------+---------------------------------------------|
| 3 | 0 | Display result codes in numeric format |
| | | |
| | í 1 | Display result codes in verbose format |
|------+-------+---------------------------------------------|
| 4 | í 0 | Not used |
|------+-------+---------------------------------------------|
| 5 | 0 | 33/67ms at 10pps (Europe) |
| | | |
| | í 1 | 39/61ms at 10pps (North America) |
|------+-------+---------------------------------------------|
| 6 | 0 | ITU/T mode |
| | | |
| | 1 | Bell mode |
|------+-------+---------------------------------------------|
| 7 | í 0 | Long space disconnect function disabled |
| | | |
| | 1 | Long space disconnect function enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S15 |
|------------------------------------------------------------|
| Format: | AT [cmds] S15=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0-127 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls baud rate, answer/originate mode, |
| | and carrier signal. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 1, 0 | 00 | Unidentified |
| | | |
| | 01 | 110bps |
| | | |
| | 10 | 300bps |
| | | |
| | 11 | 1200bps |
|------+-------+---------------------------------------------|
| 2 | 0 | Answer mode enabled |
| | | |
| | 1 | Answer mode disabled |
|------+-------+---------------------------------------------|
| 3 | 0 | Originate mode disabled |
| | | |
| | 1 | Originate mode enabled |
|------+-------+---------------------------------------------|
| 5, 4 | 00 | Unidentified |
| | | |
| | 01 | 110bps |
| | | |
| | 10 | 300bps |
| | | |
| | 11 | 1200bps |
|------+-------+---------------------------------------------|
| 6 | 0 | Carrier signal disabled |
| | | |
| | 1 | Carrier signal enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] D<#> [cmds] |
|--------------+---------------------------------------------|
| Description: | Dials telephone number according to any |
| | modifiers included in the string |
|--------------+---------------------------------------------|
| Note: | Any combination of modifiers can be used to |
| | produce the desired dial functions in |
| | sequence. |
|--------------+---------------------------------------------|
| Modifier | Function |
|--------------+---------------------------------------------|
| P | Pulse dialing enabled |
|--------------+---------------------------------------------|
| R | Answer mode enabled, originate mode |
| | disabled following handshake initiation |
|--------------+---------------------------------------------|
| T | Tone dialing enabled |
|--------------+---------------------------------------------|
| , | Dialing paused for amount of time specified |
| | in S8 register |
|--------------+---------------------------------------------|
| / | Dialing paused for 125 millisecond |
|--------------+---------------------------------------------|
| ! | Modem commanded to go off-hook for |
| | specified time before returning on-hook |
|--------------+---------------------------------------------|
| @ | Wait for quiet answer |
|--------------+---------------------------------------------|
| ; | Modem returned to command state after |
| | dialing |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports modem model and speed |
|--------------+---------------------------------------------|
| I1 | Reports firmware revision |
|--------------+---------------------------------------------|
| I2 | Tests and reports internal memory test |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S16=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls loopback tests, analog, digital, |
| | and DTMF tone tests |
|--------------+---------------------------------------------|
| í Command | Function |
|--------------+---------------------------------------------|
| » S16=0 | Normal mode |
|--------------+---------------------------------------------|
| í S16=1 | Local analog loopback in progress |
|--------------+---------------------------------------------|
| í S16=2 | DTMF tone test in progress |
|--------------+---------------------------------------------|
| í S16=4 | Digital loopback in progress |