SIMPLE TECHNOLOGY, INC.
14.4 VOICE DATA/FAX MODEM
|
Modem Type |
Data (synchronous/asynchronous)/Fax/Voice |
|
Maximum Data Rate |
14.4Kbps |
|
Maximum Fax Rate |
14.4Kbps |
|
Data Bus |
PCMCIA Type II |
|
Fax Class |
Class I |
|
Data Modulation Protocol |
Bell 103A/212A ITU-T V.21, V.22bis, V.23, V.32, V.32bis |
|
Fax Modulation Protocol |
ITU-T V.17, V.21CH2, V.27ter, V.29 |
|
Error Correction/Compression |
MNP5, V.42, V.42bis |
V1477
Proprietary AT Command Set
|
ACCEPT RELIABLE MODE | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] \U [cmds] |
|
Example: |
AT \U B1 <CR> |
|
Description: |
Accepts remote modem’s request for reliable link. |
|
AUTO FALL FORWARD/FALLBACK | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] %Gn [cmds] |
|
Example: |
AT %G0 &W <CR> |
|
Description: |
Selects auto fallback in V.32bis. |
|
Command |
Function |
| » %G0 |
Fallback disabled. |
|
%G1 |
Fallback enabled. |
|
AUTO-RELIABLE FALLBACK CHARACTER | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] %An [cmds] |
|
Example: |
AT%A13 <CR> |
|
Default: |
13 |
|
Range: |
0-127 |
|
Unit: |
ASCII |
|
Description: |
Sets the character used as the auto-reliable fallback character. %A0 will disable this function. |
|
AUTO-RELIABLE TIME BUFFER CONFIGURATION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] \Cn [cmds] |
|
Example: |
AT \C1 &W <CR> |
|
Description: |
Controls the handling of incoming data during auto-reliable time period. |
|
Command |
Function |
| » \CO |
Data is discarded. |
|
\C1 |
Data is buffered. |
|
\C2 |
Data is discarded, sets to normal mode and sends auto-reliable character to serial port. |
|
AUTO-RETRAIN | |
|
Type: |
Configuration |
|
Format: |
AT %En |
|
Example: |
AT %E1 <CR> |
|
Description: |
Selects auto-retrain mode. |
|
Command |
Function |
|
%E0 |
Auto-retrain disabled. |
| » %E1 |
Auto-retrain enabled. |
|
BIT-MAPPED REGISTER S14 | |||
|
Format |
AT [cmds] S14? [cmds] | ||
|
Example: |
ATS14? <CR> | ||
|
Default: |
Read only | ||
|
Range: |
0-182 | ||
|
Unit: |
Bit-mapped | ||
|
Description: |
Displays echo, result codes, dumb mode, dial mode, and answer/originate mode. | ||
|
Bit |
Value |
Function | |
|
0 |
0 |
Not used. | |
|
1 |
0 » 1 |
Command echo disabled. Command echo enabled. | |
|
2 |
0 » 1 |
Result codes enabled. Result codes disabled. | |
|
3 |
0 |
Not used. | |
|
4 |
0 » 1 |
Dumb mode off (normal). Dumb mode on. | |
|
5 |
» 0
1 |
Tone dial enabled. Pulse dial enabled. | |
|
6 |
0 |
Not used. | |
|
7 |
0 » 1 |
Answer mode enabled. Originate mode enabled. | |
|
BIT-MAPPED REGISTER S21 | |||
|
Format |
AT [cmds] S21? [cmds] | ||
|
Example: |
ATS21? <CR> | ||
|
Default: |
Read only | ||
|
Range: |
0 - 253 | ||
|
Unit: |
Bit-mapped | ||
|
Description: |
Displays jack type, CTS signal, low DTR action, DCD signal, DSR signal, and the Long Space Disconnect function. | ||
|
Bit |
Value |
Function | |
|
0 |
» 0
1 |
Selects RJ-11, RJ-41S, or RJ45S jack. Selects RJ-12 or RJ-13 jack. | |
|
1 |
0 |
Not used. | |
|
2 |
» 0
1 |
CTS forced high. CTS follows RTS. | |
|
4, 3 |
00 01 » 10 11 |
DTR signal ignored. Modem goes to command mode on low DTR. Modem disconnects on low DTR. Auto-Answer is disabled. Modem is initialized on low DTR. | |
|
5 |
0 » 1 |
DCD forced high. DCD normal. | |
|
6 |
» 0
1 |
DSR forced high. DSR normal. | |
|
7 |
» 0
1 |
Long Space Disconnect function disabled. Long Space Disconnect function enabled. | |
|
BIT-MAPPED REGISTER S22 | |||
|
Format |
AT [cmds] S22? [cmds] | ||
|
Example: |
ATS22? <CR> | ||
|
Default: |
Read only | ||
|
Range: |
0-255 | ||
|
Unit: |
Bit-mapped | ||
|
Description: |
Displays speaker volume and controls, and limits results codes. | ||
|
Bit |
Value |
Function | |
|
1, 0 |
00 01 » 10 11 |
Not used. On volume. Medium level volume. High level volume. | |
|
3, 2 |
00 » 01 10 11 |
Speaker off. Speaker off on carrier. Speaker always on. Speaker on during handshake. | |
|
6, 5, 4 |
000 100 101 110 » 111 |
Busy and dialtone detection disabled, result codes 0-4 enabled. Busy and dialtone detection disabled, result codes 0-5, 10 enabled. Busy tone detection disabled, dialtone detection enabled, result codes 0-6, 10 enabled. Busy tone detection enabled, dialtone detection disabled, result codes 0-5, 7, 10 enabled. Busy and dialtone detection enabled, result codes 0-7, 10 enabled. | |
|
7 |
» 0
1 |
39/61ms at 10pps (North America) 33/67ms at 10pps (Europe) | |
|
BIT-MAPPED REGISTER S23 | |||
|
Format |
AT [cmds] S23? [cmds] | ||
|
Example: |
ATS23? <CR> | ||
|
Default: |
Read only | ||
|
Range: |
0-255 | ||
|
Unit: |
Bit-mapped | ||
|
Description: |
Displays remote digital loopback status, DTE rate and parity, and guard tone. | ||
|
Bit |
Value |
Function | |
|
0 |
0 » 1 |
Remote digital loopback denied. Remote digital loopback allowed. | |
|
3, 2, 1 |
000 001 010 011 100 101 110 |
Sets serial port speed to 0-300bps. Sets serial port speed to 1200bps. Sets serial port speed to 2400bps. Sets serial port speed to 4800bps. Sets serial port speed to 7200bps. Sets serial port speed to 9600bps. Sets serial port speed to 38400bps. | |
|
5,4 |
» 00
01 10 11 |
Parity even. No Parity. Parity odd. Mark. | |
|
7, 6 |
» 00
01 10 |
Guard tone disabled. Guard tone 550Hz enabled. Guard tone 1800Hz enabled. | |
|
BIT-MAPPED REGISTER S27 | |||
|
Format |
AT [cmds] S27=n [cmds] | ||
|
Example: |
ATS27=64 <CR> | ||
|
Default: |
64 | ||
|
Range: |
0 - 255 | ||
|
Unit: |
Bit-mapped | ||
|
Description: |
Controls communications mode, line type, and protocol type. | ||
|
Note: |
Be aware that bits 2 and 3 are out of order. | ||
|
Bit |
Value |
Function | |
|
3, 1, 0 | » 0 |
Asynchronous mode, serial port speed follows connect speed. | |
|
2 |
» 0
1 |
Switched line. Lease line. | |
|
5, 4 | » 0 |
Modem generates clock source. | |
|
6 |
0 » 1 |
Select CCITT protocols. Select Bell protocols. | |
|
BREAK SEND | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] \Bn [cmds] |
|
Example: |
AT \B3 &W <CR> |
|
Default: |
3 |
|
Range: |
1-9 |
|
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 DTE Reliable/Normal mode |
Break from DTE Direct mode |
Modem receives \B |
Break from remote modem | |
|
\K0 |
Enter command mode, do not send break to remote modem. |
Send break to remote modem immediately, then enter command mode. |
Buffers cleared and break sent to remote modem. |
Buffers cleared and break sent to DTE. | |
|
\K1 |
Buffers cleared and break sent to remote modem. |
Send break to remote modem immediately. |
Buffers cleared and break sent to remote modem. |
Buffers cleared and break sent to DTE. | |
|
\K2 |
Enter command mode, do not send break to remote modem. |
Send break to remote modem immediately, then enter command mode. |
Send break to remote modem immediately. |
Send break to DTE immediately. | |
|
\K3 |
Send break to remote modem immediately. |
Send break to remote modem immediately. |
Send break to remote modem immediately. |
Send break to DTE immediately. | |
|
\K4 |
Enter command mode, do not send break to remote modem. |
Send break to remote modem immediately, then enter command mode. |
Send break to remote modem with transmitted data. |
Break sent with received data to the DTE. | |
| » \K5 |
Send break with transmitted data. |
Send break to remote modem immediately. |
Send break to remote modem with transmitted data. |
Break sent with received data to the DTE. | |
|
COMPRESSION | |
|
Type: |
Configuration |
|
Format: |
AT %Cn |
|
Example: |
AT *EC0 %C1 *AP0 <CR> |
|
Description: |
Selects data compression. |
|
Command |
Function |
|
%C0 |
Data compression disabled. |
| » %C1 |
Data compression enabled. |
|
DTE SPEED OPTION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] \Jn [cmds] |
|
Example: |
AT \J0 &W <CR> |
|
Description: |
Controls the speed of the DTE. |
|
Command |
Function |
| » \J0 |
DCE and DTE rates are independent. |
|
\J1 |
DTE rate adjusts to DCE rate after connection. |
|
CALLING TONE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] -Cn [cmds] |
|
Example: |
AT -C0 &W <CR> |
|
Description: |
Controls whether the DTE will allow the modem to send a 1300Hz calling tone when originating. |
|
Command |
Function |
| » -C0 |
Disable calling tone. |
|
-C1 |
Enable calling tone. |
|
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 |
Direct mode enabled |
|
\N2 |
Reliable mode enabled. |
|
\N3 |
Auto-reliable mode enabled. |
|
\N4 |
LAPM mode enabled. |
|
CONVERT TO RELIABLE MODE | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] \Y [cmds] |
|
Example: |
AT \Y <CR> |
|
Description: |
Initiates reliable mode link. |
|
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 TYPE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] \Qn [cmds] |
|
Example: |
AT \Q0 A <CR> |
|
Description: |
Sets type of flow control used by modem. |
|
Command |
Function |
|
\Q0 |
Flow control disabled. |
|
\Q1 |
XON/XOFF flow control enabled. |
|
\Q2 |
CTS flow control to DTE enabled. |
|
\Q3 |
RTS/CTS flow control enabled. |
|
INACTIVITY TIMER | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] S90=n [cmds] |
|
Example: |
ATS90=20 <CR> |
|
Default: |
0 |
|
Range: |
0-255 |
|
Unit: |
1 minute |
|
Description: |
Sets the length of time that the modem does not receive information before it disconnects. S90=0 will disable. |
|
INACTIVITY TIMER | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] \Tn [cmds] |
|
Example: |
AT\T20 <CR> |
|
Default: |
0 |
|
Range: |
0-90 |
|
Unit: |
1 minute |
|
Description: |
Sets the length of time that the modem does not receive information before it disconnects. \T0 will disable. |
|
REPORT SIGNAL QUALITY | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] %Q [cmds] |
|
Example: |
AT %Q <CR> |
|
Description: |
Reports signal quality. If the value is greater than 7, the modem will retrain. |
|
MAXIMUM BLOCK SIZE FOR TRANSMISSION | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] \An [cmds] |
|
Example: |
AT \A3 %C1 <CR> |
|
Description: |
Sets the maximum transmittable block size. |
|
Command |
Function |
|
\A0 |
MNP block size is 64 characters. |
|
\A1 |
MNP block size is 128 characters. |
|
\A2 |
MNP block size is 192 characters. |
| » \A3 |
MNP block size is 256 characters. |
|
ON-LINE IN RELIABLE MODE | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] \O |
|
Example: |
AT \O <CR> |
|
Description: |
Returns to on-line and requests reliable mode connection. |
|
REPORT INFORMATION | ||||
|
Type: |
Immediate | |||
|
Format: |
AT [cmds] In [cmds] | |||
|
Example: |
AT I1 &W <CR> | |||
|
Description: |
Displays modem properties. | |||
|
Command |
Function | |||
|
I0 |
Reports product code. | |||
|
I1 |
Reports firmware version number. | |||
|
I2 |
Reports ROM checksum. | |||
|
I3 |
Reports device set name. | |||
|
I4 |
Reports current configuration (see rows below, default is 31). | |||
|
Bit |
Value |
Meaning | ||
|
0 |
0 » 1 |
Hayes escape sequence. TIES escape sequence. | ||
|
1 |
0 » 1 |
No error corection firmware. Error corection firmware. | ||
|
2 |
0 » 1 |
Serial host interface. Parallel host interface. | ||
|
3 |
0 » 1 |
No external static RAM present. External static RAM present. | ||
|
4 |
0 » 1 |
8K x 8 static RAM present. 32K x 8 static RAM present. | ||
|
RESULT CODE FORMAT | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] \Vn [cmds] |
|
Example: |
AT \V0 Q0 <CR> |
|
Description: |
Selects which type of response codes are supported. |
|
Command |
Function |
|
\V0 |
Enables codes selected by ATV command. |
|
\V1 |
Enables Modified MNP codes. |
|
\V2 |
Enables Modified V.42 codes. |
|
RETRAIN SENSITIVITY | |
|
Type: |
Register |
|
Format: |
AT [cmds] S108=n [cmds] |
|
Example: |
AT S108=1 &W <CR> |
|
Description: |
Controls the quality of retraining. |
|
Command |
Function |
|
S108=0 |
Retrain disabled. |
| » S108=1 |
Low quality retrain. |
|
S108=2 |
Medium quality retrain. |
|
S108=3 |
High quality retrain. |
|
SRAM BUFFER | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] Kn [cmds] |
|
Example: |
AT K1 &W <CR> |
|
Description: |
Controls SRAM buffer for voice and fax mode. |
|
Command |
Function |
|
K0 |
Disables SRAM. |
|
K1 |
Enables SRAM. |
|
SWITCH TO MNP MODE | |
|
Type: |
Immediate |
|
Format: |
AT [cmds] \Z [cmds] |
|
Example: |
AT \Z &W <CR> |
|
Description: |
Switches to normal mode from MNP mode. |
|
TEST MODES | |||
|
Format |
AT [cmds] S16=n [cmds] | ||
|
Example: |
ATS16=40 <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
1 |
Local analog loopback not in progress. Local analog loopback in progress. | |
|
1 | » 0 |
Not used. | |
|
2 |
» 0
1 |
Local digital loopback not in progress. Local digital loopback in progress. | |
|
3 |
» 0
1 |
Modem not in remote digital loopback. Remote digital loopback in progress. | |
|
4 |
» 0
1 |
Remote digital loopback not requested. Remote digital loopback requested. | |
|
5 |
» 0
1 |
Remote digital loopback w/ self-test not in progress. Remote digital loopback w/ self-test in progress. | |
|
6 |
» 0
1 |
Local analog loopback w/ self-test not in progress. Local analog loopback w/ self-test in progress. | |
|
V.42 DETECTION PHASE | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] -Jn [cmds] |
|
Example: |
AT -J1 &W <CR> |
|
Description: |
Controls V.42 detection. |
|
Command |
Function |
|
-J0 |
V.42 detection disabled. |
| » -J1 |
V.42 detection enabled. |
|
V.42bis COMPRESSION CONTROL | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] "Hn [cmds] |
|
Example: |
AT "H3 &W <CR> |
|
Description: |
Controls V.42bis data compression |
|
Command |
Function |
|
"H0 |
V.42bis disabled. |
|
"H1 |
V.42bis when transmitting enabled. |
|
"H2 |
V.42bis when receiving enabled. |
| » "H3 |
V.42bis when transmitting/receiving enabled. |
|
V.42bis MAXIMUM STRING LENGTH | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] "On [cmds] |
|
Example: |
AT "O32 <CR> |
|
Default: |
32 |
|
Range: |
6 - 250 |
|
Unit: |
Characters |
|
Description: |
Selects string size for V.42bis compression. |
|
XON/XOFF PASS-THROUGH | |
|
Type: |
Configuration |
|
Format: |
AT [cmds] \Xn [cmds] |
|
Example: |
AT \X7 O <CR> |
|
Description: |
Selects whether XON/XOFF signals are sent to remote modem. |
|
Command |
Function |
| » \X0 |
XON/XOFF signals trapped by local modem. |
|
\X1 |
XON/XOFF passed through local modem. |