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# SOUTH MOUNTAIN TELECOMMUNICATIONS
SM-5743
Card Type Fax, Modem (asynchronous)
Chip Set Unidentified
Maximum Modem Rate 14.4Kbps
Maximum Fax Rate 14.4Kbps
Data Bus External
Fax Class Class I & II
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21,V.22, V.22bis, V.32, V.32bis
Fax Modulation ITU-T V.17, V.21 ch2, V.27ter, V.29
Protocol
Error MNP2-5, V.42, V.42bis
Correction/Compression
Boot ROM Not available
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| Line in | CN1 | DC power | CN4 |
|---------------------------+----------+--------------+------|
| Line out | CN2 | Power switch | SW1 |
|---------------------------+----------+--------------+------|
| RS-232/422 | CN3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-------+--------+----------+--------------------------------|
| MR | Red | On | Power is on |
|-------+--------+----------+--------------------------------|
| MR | Red | Off | Power is off |
|-------+--------+----------+--------------------------------|
| TR | Red | On | DTR signal is high |
|-------+--------+----------+--------------------------------|
| TR | Red | Off | DTR signal is low |
|-------+--------+----------+--------------------------------|
| TD | Red | Blinking | Modem is transmitting data |
|-------+--------+----------+--------------------------------|
| TD | Red | Off | Modem is not transmitting data |
|-------+--------+----------+--------------------------------|
| RD | Amber | Blinking | Modem is receiving data |
|-------+--------+----------+--------------------------------|
| RD | Amber | Off | Modem is not receiving data |
|-------+--------+----------+--------------------------------|
| OH | Red | On | Modem is off-hook |
|-------+--------+----------+--------------------------------|
| OH | Red | Off | Modem is on-hook |
|-------+--------+----------+--------------------------------|
| CD | Red | On | Carrier signal detected |
|-------+--------+----------+--------------------------------|
| CD | Red | Off | Carrier signal not detected |
|-------+--------+----------+--------------------------------|
| AA | Red | On | Auto-answer enabled |
|-------+--------+----------+--------------------------------|
| AA | Red | Off | Auto-answer disabled |
|-------+--------+----------+--------------------------------|
| AA | Red | Blinking | Phone is ringing |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| SUPPORTED STANDARD COMMANDS |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| +++, ‘comma’, A/ |
|------------------------------------------------------------|
| A, B, D, H, L, M, N, O, Q, V, W, X, Z |
|------------------------------------------------------------|
| &D, &F, &G, &J, &K, &V, &W, &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \B, \G, \K, \V, \X, %A, %C, %E, %L, %Q |
|------------------------------------------------------------|
| S-Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S18, S25, S26, S46, S48 |
|------------------------------------------------------------|
| Note: See MHI documentation for complete information. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| UNIDENTIFIED COMMANDS |
|------------------------------------------------------------|
| Command | Default |
|----------------------------+-------------------------------|
| S27 | Unidentified |
|----------------------------+-------------------------------|
| S36 | 0 |
|----------------------------+-------------------------------|
| S40 | 57 |
|----------------------------+-------------------------------|
| S42 | 0 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the type of connection the modem |
| | will operate in |
|------------------------------------------------------------|
| Command | Function |
|----------------------+-------------------------------------|
| \N0 | Normal mode enabled |
|----------------------+-------------------------------------|
| \N1 | Direct mode enabled |
|----------------------+-------------------------------------|
| \N2 | MNP reliable mode enabled |
|----------------------+-------------------------------------|
| í\N4 | Auto-reliable mode enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested about the |
| | modem. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Displays product identification code. |
|--------------+---------------------------------------------|
| I1 | Displays ROM checksum. |
|--------------+---------------------------------------------|
| I3 | Displays firmware revision. |
|--------------+---------------------------------------------|
| I4 | Displays product features. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INACTIVITY TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S30=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-90 |
|--------------+---------------------------------------------|
| Unit: | 1 minute |
|--------------+---------------------------------------------|
| Description: | Maximum duration of DTE and DCE inactivity |
| | allowed prior to initiating hang-up |
| | process. |
|--------------+---------------------------------------------|
| Note: | S30=0 disables the timer and allows |
| | indefinite inactivity. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.32 - AUTO-RETRAIN |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain function if poor line |
| | quality is detected |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &B0 | Auto-retrain disabled modem hangs-up |
|--------------+---------------------------------------------|
| í &B1 | Auto-retrain enabled if line quality is |
| | poor |
|--------------+---------------------------------------------|
| &B2 | No hang-up, no auto-retrain |
+------------------------------------------------------------+