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# OSITECH COMMUNICATIONS, INC.
TRUMPCARD FAX/MODEM 28.8
Modem Type Data (synchronous/asynchronous)/Fax
Maximum Data Rate 28.8Kbps
Maximum Fax Rate 14.4Kbps
Data Bus PCMCIA
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.27ter, V.29
Protocol
Error MNP5, MNP10, V.42, V.42bis
Correction/Compression
Proprietary AT Command Set
V1491
+------------------------------------------------------------+
| AUTO-RETRAIN - FALLBACK/FALLFORWARD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %En [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %E1 <CR> |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain mode and |
| | fallback/fall forward. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » %E0 | Line quality monitor disabled |
|--------------+---------------------------------------------|
| %E1 | Line quality monitor and auto-retrain |
| | enabled. |
|--------------+---------------------------------------------|
| %E2 | Line quality monitor and fallback/fall |
| | forward enabled. |
|--------------+---------------------------------------------|
| %E3 | Line quality monitor and fallback/fall |
| | forward enabled hangup on EQM . |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTERS |
|------------------------------------------------------------|
| Register | Default |
|------------------------------+-----------------------------|
| S14 | 138 |
|------------------------------+-----------------------------|
| S16 | 0 |
|------------------------------+-----------------------------|
| S21 | 4 |
|------------------------------+-----------------------------|
| S22 | 117 |
|------------------------------+-----------------------------|
| S23 | 55 |
|------------------------------+-----------------------------|
| S27 | 74 |
|------------------------------+-----------------------------|
| S28 | 0 |
|------------------------------+-----------------------------|
| S31 | 194 |
|------------------------------+-----------------------------|
| S39 | 3 |
|------------------------------+-----------------------------|
| S40 | 105 |
|------------------------------+-----------------------------|
| S41 | 03 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK SEND |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Bn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \B3 &W<CR> |
|--------------+---------------------------------------------|
| Default: | 3 |
|--------------+---------------------------------------------|
| Range: | 0-9 |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Sends break to modem. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|---------------------+--------------------------------------|
| Format: | AT [cmds] \Kn [cmds] |
|---------------------+--------------------------------------|
| Example: | AT \K1 <CR> |
|---------------------+--------------------------------------|
| Description: | Configures action of break signal. |
|------------------------------------------------------------|
| Command | Break from | Break from DTE | Break from |
| | DTE | while in | remote modem |
| | | command mode | |
|------------+--------------+----------------+---------------|
| \K0 | Enter | Buffers | Buffers |
| | command | cleared and | cleared and |
| | mode, do not | break sent to | break sent to |
| | send break | remote modem. | DTE. |
| | to remote | | |
| | modem. | | |
|------------+--------------+----------------+---------------|
| \K1 | Buffers | Buffers | Buffers |
| | cleared and | cleared and | cleared and |
| | break sent | break sent to | break sent to |
| | to remote | remote modem. | DTE. |
| | modem. | | |
|------------+--------------+----------------+---------------|
| \K2 | Enter | Send break to | Send break to |
| | command | remote modem | DTE |
| | mode, do not | immediately. | immediately. |
| | send break | | |
| | to remote | | |
| | modem. | | |
|------------+--------------+----------------+---------------|
| \K3 | Send break | Send break to | Send break to |
| | to remote | remote modem | DTE |
| | modem | immediately. | immediately. |
| | immediately. | | |
|------------+--------------+----------------+---------------|
| \K4 | Enter | Send break to | Send break to |
| | command | remote modem | remote modem |
| | mode, do not | with | with |
| | send break | transmitted | transmitted |
| | to remote | data. | data. |
| | modem. | | |
|------------+--------------+----------------+---------------|
| » \K5 | Send break | Send break to | Send break to |
| | with | remote modem | remote modem |
| | transmitted | with | with |
| | data. | transmitted | transmitted |
| | | data. | data. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CELLULAR TRANSMISSION LEVEL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] @Mn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT @M26 &W<CR> |
|--------------+---------------------------------------------|
| Default: | 26 |
|--------------+---------------------------------------------|
| Range: | 10-31 |
|--------------+---------------------------------------------|
| Unit: | -1dBm when n>10. |
|--------------+---------------------------------------------|
| Description: | Sets the signal level for transmission when |
| | in leased line mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| @M0 | -26dBm. |
|--------------+---------------------------------------------|
| @M1 | -30dBm. |
|--------------+---------------------------------------------|
| @M2-@M10 | -10dBm. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT %Cn |
|--------------+---------------------------------------------|
| Example: | AT %C1 &B0<CR> |
|--------------+---------------------------------------------|
| Description: | Selects data compression. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %C0 | Data compression disabled. |
|--------------+---------------------------------------------|
| %C1 | MNP5 enabled. |
|--------------+---------------------------------------------|
| %C2 | V.42bis enabled. |
|--------------+---------------------------------------------|
| » %C3 | MNP5 and V.42bis enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMPROMISE EQUALIZER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] :En [cmds] |
|--------------+---------------------------------------------|
| Example: | AT :E &W<CR> |
|--------------+---------------------------------------------|
| Description: | Controls V.32 compromise equalizer. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| :E0 | Equalizer disabled. |
|--------------+---------------------------------------------|
| » :E1 | Equalizer enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \N1 DT555-1212<CR> |
|--------------+---------------------------------------------|
| Description: | Sets connect mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \N0 | Normal mode enabled. |
|--------------+---------------------------------------------|
| \N1 | Normal mode enabled. |
|--------------+---------------------------------------------|
| \N2 | Reliable mode enabled. |
|--------------+---------------------------------------------|
| » \N3 | Auto-reliable mode enabled. |
|--------------+---------------------------------------------|
| \N4 | LAPM mode enabled. |
|--------------+---------------------------------------------|
| \N5 | MNP mode enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Gn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \G1 &K3<CR> |
|--------------+---------------------------------------------|
| Description: | Selects modem port flow control. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \G0 | Flow control disabled. |
|--------------+---------------------------------------------|
| \G1 | Flow control enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XOFF |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S33=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS33=20<CR> |
|--------------+---------------------------------------------|
| Default: | 19 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used to represent XOFF. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL CHARACTER - XON |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S32=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS32=20<CR> |
|--------------+---------------------------------------------|
| Default: | 17 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used to represent XON. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE SIGNAL LEVEL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %L [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %L &W<CR> |
|--------------+---------------------------------------------|
| Range: | 9-43 |
|--------------+---------------------------------------------|
| Unit: | -1dB |
|--------------+---------------------------------------------|
| Description: | Returns received line signal level. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP10 COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -Kn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %C1 -K1 <CR> |
|--------------+---------------------------------------------|
| Description: | Selects MNP10 data compression. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| -K0 | MNP10 disabled. |
|--------------+---------------------------------------------|
| » -K1 | MNP10 enabled. |
|--------------+---------------------------------------------|
| -K2 | MNP10 enabled on originate mode only. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP10 LINK NEGOTIATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Hn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT *H0 <CR> |
|--------------+---------------------------------------------|
| Description: | Sets the speed at which MNP10 link |
| | negotiation will occur. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » *H0 | Link will be negotiated at highest possible |
| | speed. |
|--------------+---------------------------------------------|
| *H1 | Link will be negotiated at 1200bps. |
|--------------+---------------------------------------------|
| *H2 | Link will be negotiated at 4800bps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MNP10 POWER LEVEL ADJUST |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] )Mn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT )M1 %C1<CR> |
|--------------+---------------------------------------------|
| Description: | Controls automatic transmit power level |
| | adjustment during MNP 10 link negotiation. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » )M0 | Power level adjustment disabled. |
|--------------+---------------------------------------------|
| )M1 | Power level adjustment enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PROTOCOL/SPEED |
|------------------------------------------------------------|
| Format | AT [cmds] S37=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS37=21<CR> |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-21 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped. |
|--------------+---------------------------------------------|
| Description: | Selects protocol and line speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » S37=0 | Auto-select fastest common protocol. |
|--------------+---------------------------------------------|
| S37=1 | Connect at 300bps |
|--------------+---------------------------------------------|
| S37=2 | Connect at 300bps |
|--------------+---------------------------------------------|
| S37=3 | Connect at 300bps. |
|--------------+---------------------------------------------|
| S37=4 | Not used. |
|--------------+---------------------------------------------|
| S37=5 | Connect at 1200bps V.22. |
|--------------+---------------------------------------------|
| S37=6 | Connect at 2400bps.V.22bis |
|--------------+---------------------------------------------|
| S37=7 | Connect at 75/1200bps.V.32 |
|--------------+---------------------------------------------|
| S37=8 | Connect at 4800bps V.32bis/V.32. |
|--------------+---------------------------------------------|
| S37=9 | Connect at 9600bps V.32bis/V.32 |
|--------------+---------------------------------------------|
| S37=10 | Connect at 12Kbps V.32bis |
|--------------+---------------------------------------------|
| S37=11 | Connect at 14.4Kbps V.32bis |
|--------------+---------------------------------------------|
| S37=12 | Connect at V.32bis 7200bps |
|--------------+---------------------------------------------|
| S37=15 | Connect at V.FC 14.4Kbps |
|--------------+---------------------------------------------|
| S37=16 | Connect at 16.8Kbps |
|--------------+---------------------------------------------|
| S37=17 | Connect at 19.2Kbps |
|--------------+---------------------------------------------|
| S37=18 | Connect at 1600bps |
|--------------+---------------------------------------------|
| S37=19 | Connect at 24.0Kbps |
|--------------+---------------------------------------------|
| S37=20 | Connect at 26.2Kbps |
|--------------+---------------------------------------------|
| S37=21 | Connect at 28.8Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT SIGNAL QUALITY |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Q [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %Q &W<CR> |
|--------------+---------------------------------------------|
| Description: | Reports signal quality. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SLEEP TIMER |
|------------------------------------------------------------|
| Format | AT [cmds] S24=n [cmds] |
|--------------+---------------------------------------------|
| Example: | ATS24=40<CR> |
|--------------+---------------------------------------------|
| Default: | 10 |
|--------------+---------------------------------------------|
| Range: | 0 - 255 |
|--------------+---------------------------------------------|
| Unit: | 10 second |
|--------------+---------------------------------------------|
| Description: | Maximum duration of DTE and DCE inactivity |
| | allowed prior to initiating low-power sleep |
| | mode. |