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# BOCA RESEARCH, INC.
BOCAMODEM M024ID
Modem Type Data (asynchronous)
Maximum Data Rate 2400bps
Data Bus 8-bit ISA
Data Modulation Protocol Bell 103A/212A
ITU-T V.22, V.22bis
Error Correction/Compression Unidentified
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Line out | CN1 | Line in | CN2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Port | JP1/A | JP1/B | JP1/C | JP1/D |
|----------------+----------+----------+----------+----------|
| COM1: (3F8h) | Closed | Open | Open | Open |
|----------------+----------+----------+----------+----------|
| COM2: (2F8h) | Open | Closed | Open | Open |
|----------------+----------+----------+----------+----------|
| » COM3: (3E8h) | Open | Open | Closed | Open |
|----------------+----------+----------+----------+----------|
| COM4: (2E8h) | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP1/E | JP1/F | JP1/G | JP1/H |
|---------+------------+------------+------------+-----------|
| 3 | Closed | Open | Open | Open |
|---------+------------+------------+------------+-----------|
| 4 | Open | Closed | Open | Open |
|---------+------------+------------+------------+-----------|
| » 5 | Open | Open | Closed | Open |
|---------+------------+------------+------------+-----------|
| 7 | Open | Open | Open | Closed |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| BIT-MAPPED REGISTERS |
|------------------------------------------------------------|
| Registers | Default |
|-------------------------------+----------------------------|
| S14 | 138 |
|-------------------------------+----------------------------|
| S21 | 4 |
|-------------------------------+----------------------------|
| S22 | 117 |
|-------------------------------+----------------------------|
| S23 | 55 |
|-------------------------------+----------------------------|
| S27 | 73 |
|-------------------------------+----------------------------|
| S28 | 0 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PROTOCOL/SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S19=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS19=0<CR> |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Selects the current protocol and speed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SLEEP TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S24=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS24=0<CR> |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Maximum duration of DTE and DCE inactivity |
| | allowed prior to initiating low-power sleep |
| | mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TEST MODES |
|------------------------------------------------------------|
| Type: | Register |
|----------------+-------------------------------------------|
| Format | AT [cmds] S16=n [cmds] |
|----------------+-------------------------------------------|
| Example: | ATS16=0<CR> |
|----------------+-------------------------------------------|
| Default: | 0 |
|----------------+-------------------------------------------|
| Range: | 0-125 |
|----------------+-------------------------------------------|
| Unit: | Bit-mapped |
|----------------+-------------------------------------------|
| Description: | Controls loopback tests, analog, digital, |
| | remote digital, and self tests. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 0 | 0 | Local analog loopback not in progress. |
| | | |
| | 1 | Local analog loopback in progress. |
|----------+-------+-----------------------------------------|
| 1 | 0 | Not used. |
|----------+-------+-----------------------------------------|
| 2 | 0 | Local digital loopback not in progress. |
| | | |
| | 1 | Local digital loopback in progress. |
|----------+-------+-----------------------------------------|
| 3 | 0 | Modem not in remote digital loopback. |
| | | |
| | 1 | Remote digital loopback in progress. |
|----------+-------+-----------------------------------------|
| 4 | 0 | Remote digital loopback not requested. |
| | | |
| | 1 | Remote digital loopback requested. |
|----------+-------+-----------------------------------------|
| 5 | 0 | Remote digital loopback w/ self-test |
| | | not in progress. |
| | 1 | |
| | | Remote digital loopback w/ self-test in |
| | | progress. |
|----------+-------+-----------------------------------------|
| 6 | 0 | Local analog loopback w/ self-test not |
| | | in progress. |
| | 1 | |
| | | Local analog loopback w/ self-test in |
| | | progress. |
+------------------------------------------------------------+