14V14PCMCIA
Modem Type |
Data (synchronous/asynchronous)/Fax/Voice |
Maximum Data Rate |
14.4Kbps |
Maximum Fax Rate |
14.4Kbps |
Data Bus |
PCMCIA |
Fax Class |
Class I & II |
Data Modulation Protocol |
Bell 103A/212A ITU-T V.21, V.22, 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 |
Proprietary AT Command Set
V1275
AUTO-RELIABLE FALLBACK CHARACTER | |
Type: |
Register |
Format: |
AT [cmds] %An [cmds] |
Example: |
AT%A20 <CR> |
Default: |
13 |
Range: |
0-127 |
Unit: |
ASCII |
Description: |
Sets the character used as the auto-reliable fallback character. %A0 will disable this function. |
ACCEPT RELIABLE MODE | |
Type: |
Immediate |
Format: |
AT [cmds] \Un |
Example: |
AT \U <CR> |
Description: |
Accepts remote modems request for reliable link. |
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 |
\C0 |
Data is discarded. |
\C1 |
Data is buffered. |
\C2 |
Data is discarded, modem returns to normal mode on receiving auto-reliable fallback character. |
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=n [cmds] | ||
Example: |
ATS14=40 <CR> | ||
Default: |
Read only | ||
Range: |
0 - 174 | ||
Unit: |
Bit-mapped | ||
Description: |
Stores AT command settings. | ||
Bit | Value |
Function | |
0 | 0 |
Not used. | |
1 |
0 1 |
Echo function disabled. Echo function enabled. | |
2 |
0 1 |
Result code sending enabled. Result code sending disabled. | |
3 |
0 1 |
Numeric format enabled. Verbose format enabled. | |
4 | 0 |
Not used. | |
5 |
0 1 |
Tone dialing enabled. Pulse dialing enabled. | |
6 | 0 |
Not used. | |
7 |
0 1 |
Answer mode enabled. Originate mode enabled. |
BIT-MAPPED REGISTER S21 | |||
Format |
AT [cmds] S21=n [cmds] | ||
Example: |
ATS21=4 <CR> | ||
Default: |
0 | ||
Range: |
0 - 253 | ||
Unit: |
Bit-mapped | ||
Description: |
Selects jack type, CTS signal, low DTR action, DCD signal, DSR signal, and startup profile. | ||
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 follows RTS. CTS forced high. | |
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 |
Profile 0 selected at power-up. Profile 1 selected at power-up. |
BIT-MAPPED REGISTER S23 | |||
Format |
AT [cmds] S23=n [cmds] | ||
Example: |
ATS23=177 <CR> | ||
Default: |
177 | ||
Range: |
0-255 | ||
Unit: |
Bit-mapped | ||
Description: |
Grants/denies remote digital loopback, controls DTE rate and parity, and sets 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 19200bps. | |
5,4 | 00 01 10 11 |
Even parity. Space parity. Odd parity. Mark or no parity. | |
7, 6 | 00 01 10 |
Guard tone disabled. Guard tone disabled. Guard tone 1800Hz enabled. |
BIT-MAPPED REGISTER S27 | |||
Format |
AT [cmds] S27=n [cmds] | ||
Example: |
ATS27=9 <CR> | ||
Default: |
9 | ||
Range: |
0 - 127 | ||
Unit: |
Bit-mapped | ||
Description: |
Displays sync/async mode, line type, internal clock, and ITU-T/Bell modes. | ||
Bit | Value |
Function | |
3, 1, 0 | 000 001 101 110 |
Asynchronous mode, serial port speed follows connect speed. Asynchronous off-line command mode and synchronous connect mode. Error-correcting mode. Asynchronous mode, serial port speed locked. | |
2 | 0 1 |
Dial up line. Leased line. | |
5, 4 | 00 01 10 |
Internal DTE transmit clock source. External DTE transmit clock source. Slave DTE transmit clock source. | |
6 | 0 1 |
CCITT mode. Bell mode. |
BREAK SEND | |
Type: |
Configuration |
Format: |
AT [cmds] \Bn [cmds] |
Example: |
AT \B3 &W <CR> |
Range: |
0-9 |
Unit: |
1ms |
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. |
BUFFER VOICE/FAX | |
Type: |
Configuration |
Format: |
AT [cmds] Kn [cmds] |
Example: |
AT K0 &W <CR> |
Description: |
Use SRAM for fax and voice mode buffering. |
Command |
Function |
K0 |
SRAM buffer disabled. |
K1 |
SRAM buffer enabled. |
CALLING TONE | |
Type: |
Configuration |
Format: |
AT [cmds] -Cn [cmds] |
Example: |
AT -C1 DT555-1212<CR> |
Description: |
Controls the transmission of the calling tone while dialing. |
Command |
Function |
-C0 |
Calling tone disabled. |
-C1 |
Calling tone enabled. |
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. |
CONNECT MODE | |
Type: |
Configuration |
Format: |
AT [cmds] \Nn [cmds] |
Example: |
AT \N1 DT555-1212 <CR> |
Description: |
Sets connect mode. |
Command |
Function |
\N1 |
Normal mode. |
\N0 |
Direct mode. |
\N2 |
MNP reliable mode. |
\N3 |
V.42 auto-reliable mode. |
\N4 |
V.42 reliable mode. |
EXTENDED RESULT CODE FORMAT | |
Type: |
Configuration |
Format: |
AT [cmds] \Vn [cmds] |
Example: |
AT \V0 Q0 <CR> |
Description: |
Selects extended result codes. |
Command |
Function |
\V0 |
Extended result codes disabled. |
\V1 |
MNP result codes enabled. |
\V2 |
V.42 result codes enabled. |
FLOW CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] \Gn [cmds] |
Example: |
AT G1 &M0 <CR> |
Description: |
Selects modem port flow control. |
Command |
Function |
\G0 |
Flow control disabled. |
\G1 |
Flow control enabled. |
XON/XOFF PASS-THROUGH | |
Type: |
Configuration |
Format: |
AT [cmds] \Xn [cmds] |
Example: |
AT \X0 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. |
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 |
Software flow control enabled. |
\Q2 |
Unidirectional flow control enabled. |
\Q3 |
Bidirectional flow control enabled. |
INACTIVITY TIMER | |
Type: |
Register |
Format: |
AT [cmds] \Tn [cmds] |
Example: |
AT\T20 <CR> |
Default: |
0 |
Range: |
0-90 |
Unit: |
1 second |
Description: |
Sets the length of time that the modem does not receive information before it disconnects. |
INACTIVITY TIMER | |
Type: |
Register |
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. |
PROTOCOL/SPEED | |||
Format |
AT [cmds] S109=n [cmds] | ||
Example: |
ATS109=62 <CR> | ||
Default: |
62 | ||
Range: |
0 - 62 | ||
Unit: |
Bit-mapped | ||
Description: |
Selects the available speeds. | ||
Bit | Value |
Function | |
0 | 0 |
Not used. | |
1 | 0 1 |
4800bps disabled. 4800bps enabled. | |
2 | 0 1 |
7200bps disabled. 7200bps enabled. | |
3 | 0 1 |
9600bps disabled. 9600bps enabled. | |
4 | 0 1 |
12Kbps disabled. 12Kbps enabled. | |
5 | 0 1 |
14.4Kbps disabled. 14.4Kbps enabled. |
LOCK SERIAL PORT | |
Type: |
Configuration |
Format: |
AT [cmds] \Jn [cmds] |
Example: |
AT %L3 %B14 \J0<CR> |
Description: |
Sets operation of serial port speed. |
Command |
Function |
\J0 |
Serial speed locked. |
\J1 |
Serial speed follows connect speed. |
LOOPBACK TESTS | |||
Format |
AT [cmds] S16=n [cmds] | ||
Example: |
ATS16=32 <CR> | ||
Default: |
0 | ||
Range: |
0 - 255 | ||
Unit: |
Bit-mapped | ||
Description: |
Enables loopback tests. | ||
Note: |
Bit 3 is read-only. | ||
Bit | Value |
Function | |
0 | 0 1 |
Local analog loopback test disabled. Local analog loopback test enabled. | |
1 | 0 |
Not used. | |
2 | 0 1 |
Local digital loopback test disabled. Local digital loopback test enabled. | |
3 | 0 1 |
Modem is not performing remote digital loopback test. Modem is performing remote digital loopback test. | |
4 | 0 1 |
Remote digital loopback test disabled. Remote digital loopback test enabled. | |
5 | 0 1 |
Remote digital loopback with local self-test disabled. Remote digital loopback with local self-test enabled. | |
6 | 0 1 |
Local analog loopback with local self-test disabled. Local analog loopback with local self-test enabled. |
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. |
RETURN TO RELIABLE MODE | |
Type: |
Immediate |
Format: |
AT [cmds] \Z [cmds] |
Example: |
AT \Z <CR> |
Description: |
Ends reliable mode link, initiate return to normal mode. |
PROTOCOL/SPEED | |
Type: |
Configuration |
Format: |
AT [cmds] Fn [cmds] |
Example: |
AT F0 A <CR> |
Description: |
Selects the current protocol and speed. |
Command |
Function |
F0 |
Auto-select fastest common protocol. |
F1 |
Select V.21 and Bell 103A. |
F3 |
Select V.23 only. |
F4 |
Select V.22 and Bell 212A. |
F5 |
Select V.22bis only. |
F6 |
Select V.32bis and V.32. |
F7 |
Select V.32bis only. |
F8 |
Select V.32 only. |
F9 |
Select V.32bis only. |
F10 |
Select V.32bis only. |
ON-LINE IN RELIABLE MODE | |
Type: |
Immediate |
Format: |
AT [cmds] \On |
Example: |
AT \O <CR> |
Description: |
Returns to on-line and requests reliable mode connection. |
CONVERT TO RELIABLE MODE | |
Type: |
Immediate |
Format: |
AT [cmds] \Y [cmds] |
Example: |
AT \Y <CR> |
Description: |
Initiates reliable mode link. |
V.42 HANDSHAKE OPTIONS | |
Type: |
Configuration |
Format: |
AT [cmds] -Jn [cmds] |
Example: |
AT-J &W <CR> |
Description: |
Controls negotiation of V.42 and MNP protocols. |
Command |
Function |
-J0 |
V.42 negotiation disabled. |
-J1 |
V.42 negotiation enabled. |
V.42bis COMPRESSION | |
Type: |
Configuration |
Format: |
AT [cmds] "Hn [cmds] |
Example: |
AT "H0 &W <CR> |
Description: |
Controls V.42bis compression. |
Command |
Function |
"H0 |
Data compression disabled. |
"H1 |
Data compression enabled. |
"H2 |
Data compression enabled on transmit only. |
"H3 |
Data compression enabled on receive only. |
V.42bis STRING LENGTH | |
Type: |
Configuration |
Format: |
AT [cmds] "On [cmds] |
Example: |
AT"O6 <CR> |
Default: |
16 |
Range: |
6-250 |
Unit: |
1 character |
Description: |
Sets the maximum number of characters compressed into a V.42bis code word. |