(TXT) View Source
# MAXTECH CORPORATION
GM144E
Modem Type Data (synchronous/asynchronous)/Fax
Maximum Data Rate 14.4Kbps
Maximum Fax Rate 14.4Kbps
Data Bus External
Fax Class Class I & II
Data Modulation Protocol Bell 103A/212A
ITU-T V.22, V.22bis, V.32, V.32bis
Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29
Error MNP 5, V.42, V.42bis
Correction/Compression
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Line out | CN1 | DC power | CN4 |
|------------------+----------+-------------------+----------|
| Line in | CN2 | Power switch | SW1 |
|------------------+----------+-------------------+----------|
| RS-232/422 | CN3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-----+-------+----------+-----------------------------------|
| TST | Red | On | Normal operation |
|-----+-------+----------+-----------------------------------|
| TST | Red | Flash | Modem has detected and corrected |
| | | | error |
|-----+-------+----------+-----------------------------------|
| HS | Red | On | Modem is operating at 4800bps or |
| | | | faster |
|-----+-------+----------+-----------------------------------|
| HS | Red | Off | Modem is operating at slower than |
| | | | 4800bps |
|-----+-------+----------+-----------------------------------|
| AA | Red | On | Auto-answer enabled |
|-----+-------+----------+-----------------------------------|
| AA | Red | Off | Auto-answer disabled |
|-----+-------+----------+-----------------------------------|
| AA | Red | Blinking | Phone is ringing |
|-----+-------+----------+-----------------------------------|
| CD | Red | On | Carrier signal detected |
|-----+-------+----------+-----------------------------------|
| CD | Red | Off | Carrier signal not detected |
|-----+-------+----------+-----------------------------------|
| OH | Red | On | Modem is off-hook |
|-----+-------+----------+-----------------------------------|
| OH | Red | Off | Modem is on-hook |
|-----+-------+----------+-----------------------------------|
| RD | Red | On | Modem is receiving data |
|-----+-------+----------+-----------------------------------|
| RD | Red | Off | Modem is not receiving data |
|-----+-------+----------+-----------------------------------|
| SD | Red | On | Modem is transmitting data |
|-----+-------+----------+-----------------------------------|
| SD | Red | Off | Modem is not transmitting data |
|-----+-------+----------+-----------------------------------|
| TR | Red | On | DTR signal is high |
|-----+-------+----------+-----------------------------------|
| TR | Red | Off | DTR signal is low |
|-----+-------+----------+-----------------------------------|
| MR | Red | On | Power is on |
|-----+-------+----------+-----------------------------------|
| MR | Red | Off | Power is off |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| AUTO-RELIABLE TIME BUFFER CONFIGURATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] $An [cmds] |
|--------------+---------------------------------------------|
| Example: | AT $A1 &W<CR> |
|--------------+---------------------------------------------|
| Description: | Controls the handling of incoming data |
| | during auto-reliable time period. |
|--------------+---------------------------------------------|
| í Command | Function |
|--------------+---------------------------------------------|
| » $A0 | Data is discarded. |
|--------------+---------------------------------------------|
| í $A1 | Data is buffered. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CALLBACK ATTEMPTS |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S16=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS16=6<CR> |
|--------------+---------------------------------------------|
| Default: | 4 |
|--------------+---------------------------------------------|
| Range: | 1-255 |
|--------------+---------------------------------------------|
| Unit: | 1 attempt |
|--------------+---------------------------------------------|
| Description: | Sets the maximum number of login attempts |
| | after initial callback connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FAILED PASSWORD ATTEMPTS |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S26? |
|--------------+---------------------------------------------|
| Example: | ATS26?<CR> |
|--------------+---------------------------------------------|
| Default: | Read-only |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | 1 attempt |
|--------------+---------------------------------------------|
| Description: | This register stores the number of failed |
| | password attempts. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISTINCTIVE RING |
|------------------------------------------------------------|
| Format | AT [cmds] S101=n [cmds] |
|-----------------+------------------------------------------|
| Example: | ATS101=40<CR> |
|-----------------+------------------------------------------|
| Default: | 0 |
|-----------------+------------------------------------------|
| Range: | 0 - 255 |
|-----------------+------------------------------------------|
| Unit: | Bit-mapped |
|-----------------+------------------------------------------|
| Description: | |
|------------------------------------------------------------|
| Bit | í Value | Function |
|----------+---------+---------------------------------------|
| 0 | » 0 | Do not respond to ring type A. |
| | | |
| | í 1 | Respond to ring type A. |
|----------+---------+---------------------------------------|
| 1 | í 0 | Not used. |
|----------+---------+---------------------------------------|
| 2 | » 0 | Do not respond to ring type C. |
| | | |
| | í 1 | Respond to ring type C. |
|----------+---------+---------------------------------------|
| 3 | » 0 | Do not respond to ring type D. |
| | | |
| | í 1 | Respond to ring type D. |
|----------+---------+---------------------------------------|
| 4 | » 0 | Do not respond to ring type E. |
| | | |
| | í 1 | Respond to ring type E. |
|----------+---------+---------------------------------------|
| 5 | í 0 | Not used. |
|----------+---------+---------------------------------------|
| 6 | » 0 | Do not respond to ring type G. |
| | | |
| | í 1 | Respond to ring type G. |
|----------+---------+---------------------------------------|
| 7 | » 0 | Report RING for all ring types. |
| | | |
| | í 1 | Report RING n where n is the ring |
| | | type. |
+------------------------------------------------------------+