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# SIMA TECHNOLOGY CO., LTD.
V.34SVD
Card Type Modem (synchronous/asynchronous)
Chip Set Unidentified
I/O Options DSVD, speaker out, microphone in
Maximum Data Rate 33.6Kbps
Maximum Fax Rate 14.4Kbps
Data Bus Serial
Fax Class Class I & II
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis, V.34
Rockwell V.FC
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------------------------------------------|
| Line out | CN1 | RS-232/422 | CN5 |
|----------------------------+---------+--------------+------|
| Line in | CN2 | DC power | CN6 |
|----------------------------+---------+--------------+------|
| Speaker out | CN3 | Power switch | SW1 |
|----------------------------+---------+--------------+------|
| Microphone in | CN4 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-----+-------+----------+-----------------------------------|
| MR | Red | On | Power is on |
|-----+-------+----------+-----------------------------------|
| MR | Red | Blinking | Modem is in test mode |
|-----+-------+----------+-----------------------------------|
| MR | Red | Off | Power is off |
|-----+-------+----------+-----------------------------------|
| 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 |
|-----+-------+----------+-----------------------------------|
| SD | Red | On | Modem is transmitting data |
|-----+-------+----------+-----------------------------------|
| SD | Red | Off | Modem is not transmitting data |
|-----+-------+----------+-----------------------------------|
| RD | Red | On | Modem is receiving data |
|-----+-------+----------+-----------------------------------|
| RD | Red | Off | Modem is not receiving data |
|-----+-------+----------+-----------------------------------|
| TR | Red | On | DTR signal is high |
|-----+-------+----------+-----------------------------------|
| TR | Red | Off | DTR signal is low |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SUPPORTED STANDARD COMMANDS |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| +++, ‘comma’, A/ |
|------------------------------------------------------------|
| A, B, D, E, H, L, M, N, O, P, Q, T, V, W, X, Y, Z |
|------------------------------------------------------------|
| &C, &D, &F, &G, &K, &M, &P, &Q, &R, &S, &T, &V, &W, &X, |
| &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \A, \B, \G, \K, \L, \N, \W |
|------------------------------------------------------------|
| %C, %F, %L, %Q, %T |
|------------------------------------------------------------|
| Special AT Commands |
|------------------------------------------------------------|
| #CID, :E, *H, -K, )M, @M, +MS, -Q |
|------------------------------------------------------------|
| S-Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S12, S14, |
| S16, S18, S21, S22, S23, S24, S25, S27, S29 |
|------------------------------------------------------------|
| S30, S31, S32, S33, S36, S38, S39, S40, S46, S48, S86, |
| S91, S92, S95, S201 |
|------------------------------------------------------------|
| Note: See MHI documentation for complete information. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| DSVD MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -SSE=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Select whether the modem will use DSVD |
| | mode. |
|------------------------------------------------------------|
| Command | Function |
|---------------------------+--------------------------------|
| í -SSE=0 | DSVD mode disabled. |
|---------------------------+--------------------------------|
| -SSE=1 | DSVD mode enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMULTANEOUS VOICE MODE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -SMS=x,y,z,a [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects which simultaneous voice mode the |
| | modem will operate in. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| x=0 | Simultaneous voice mode disabled. |
|---------------+--------------------------------------------|
| x=1 | DSVD mode enabled. |
|---------------+--------------------------------------------|
| x=2 | SVD mode enabled. |
|---------------+--------------------------------------------|
| x=3 | Auto-detect correct mode. |
|------------------------------------------------------------|
| y, z=300 | Set minimum or maximum total speed at |
| | 300bps, respectively. |
|----------------+-------------------------------------------|
| y, z=1200 | Set minimum or maximum total speed at |
| | 1200bps, respectively. |
|----------------+-------------------------------------------|
| y, z=2400 | Set minimum or maximum total speed at |
| | 2400bps, respectively. |
|----------------+-------------------------------------------|
| y, z=4800 | Set minimum or maximum total speed at |
| | 4800bps, respectively. |
|----------------+-------------------------------------------|
| y, z=7200 | Set minimum or maximum total speed at |
| | 7200bps, respectively. |
|----------------+-------------------------------------------|
| y, z=9600 | Set minimum or maximum total speed at |
| | 9600bps, respectively. |
|----------------+-------------------------------------------|
| y, z=12000 | Set minimum or maximum total speed at |
| | 12Kbps, respectively. |
|----------------+-------------------------------------------|
| y, z=14400 | Set minimum or maximum total speed at |
| | 14.4Kbps, respectively. |
|----------------+-------------------------------------------|
| y, z=16800 | Set minimum or maximum total speed at |
| | 16.8Kbps, respectively. |
|----------------+-------------------------------------------|
| y, z=19200 | Set minimum or maximum total speed at |
| | 19.2Kbps, respectively. |
|----------------+-------------------------------------------|
| y, z=21600 | Set minimum or maximum total speed at |
| | 21.6Kbps, respectively. |
|----------------+-------------------------------------------|
| y, z=24000 | Set minimum or maximum total speed at |
| | 24Kbps, respectively. |
|----------------+-------------------------------------------|
| y, z=26400 | Set minimum or maximum total speed at |
| | 26.4Kbps, respectively. |
|----------------+-------------------------------------------|
| y, z=28800 | Set minimum or maximum total speed at |
| | 28.8Kbps, respectively. |
|----------------+-------------------------------------------|
| z=0 | Auto-detect correct ML288 baud rate. |
|----------------+-------------------------------------------|
| z=1 | Set ML288 symbol rate to 2400 bits/baud. |
|----------------+-------------------------------------------|
| z=2 | Set ML288 symbol rate to 2743 bits/baud. |
|----------------+-------------------------------------------|
| z=3 | Set ML288 symbol rate to 2800 bits/baud. |
|----------------+-------------------------------------------|
| z=4 | Set ML288 symbol rate to 3000 bits/baud. |
|----------------+-------------------------------------------|
| z=5 | Set ML288 symbol rate to 3200 bits/baud. |
|----------------+-------------------------------------------|
| z=6 | Set ML288 symbol rate to 3429 bits/baud. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SVD DATA BURST |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -SMC=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Configures the SVD data burst mode. |
|------------------------------------------------------------|
| Command | Function |
|---------------------+--------------------------------------|
| -SMC=0 | SVD data burst disabled. |
|---------------------+--------------------------------------|
| í -SMC=1 | SVD data burst enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SVD MODULATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -SQS=m,n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the modulation type used by SVD |
| | mode. |
|------------------------------------------------------------|
| Command | Function |
|-----------------+------------------------------------------|
| x=0 | Select V.61 modulation. |
|-----------------+------------------------------------------|
| x=1 | Select ML144 modulation. |
|-----------------+------------------------------------------|
| x=2 | Select ML288 modulation. |
|-----------------+------------------------------------------|
| y=0 | Auto-detect modulation mode disabled. |
|-----------------+------------------------------------------|
| y=1 | Auto-detect modulation mode enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE DEVICE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #VLS=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the I/O device for the DSP chip. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í #VLS=0 | Telephone line and handset used for voice |
| | I/O. |
|--------------+---------------------------------------------|
| #VLS=1 | Telephone handset used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=2 | Internal speaker only used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=3 | External microphone only used for voice |
| | I/O. |
|--------------+---------------------------------------------|
| #VLS=4 | Telephone line and handset used for voice |
| | I/O; internal speaker enabled. |
|--------------+---------------------------------------------|
| #VLS=5 | Headset used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=6 | Speakerphone used for voice I/O. |
+------------------------------------------------------------+
See SIMA TECHNOLOGY CO., LTD. V.34SV for a full command summary.