MAXTECH
GM144E (REV.1)
Card Type |
Fax, Modem (synchronous/asynchronous) |
Chip Set |
Unidentified |
Maximum Data Rate |
14.4Kbps |
Maximum Fax Rate |
14.4Kbps |
Data Bus |
External |
Fax Class |
Class I & II |
Data Modulation Protocol |
Bell 103/212A ITU-T V.22, V.22bis, 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 |
CONNECTIONS | ||||||
Function |
Label |
Function |
Label | |||
Line in |
CN1 |
DC power |
CN4 | |||
Line out |
CN2 |
Power switch |
SW1 | |||
RS-232/422 |
CN3 |
USER CONFIGURABLE SETTINGS | ||
Setting |
Label |
Position |
í SMART mode |
JP1 |
Pins 2 & 3 closed |
DUMB mode |
JP1 |
Pins 1 & 2 closed |
DIAGNOSTIC LED(S) | |||
LED |
Color |
Status |
Condition |
TST |
Red |
On |
Normal operation |
TST |
Red |
Flash |
Modem has detected and corrected error |
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 |
RD |
Red |
On |
Modem is receiving data |
RD |
Red |
Off |
Modem is not receiving data |
SD |
Red |
On |
Modem is transmitting data |
SD |
Red |
Off |
Modem is not transmitting data |
TR |
Red |
On |
DTR signal is high |
TR |
Red |
Off |
DTR signal is low |
MR |
Red |
On |
Power is on |
MR |
Red |
Off |
Power is off |
Proprietary AT Command Set
ACCEPT MNP RELIABLE MODE | |
Type: |
Immediate |
Format: |
AT [cmds] \U [cmds] |
Description: |
Accept remote modems request for MNP reliable mode |
AUTO-RELIABLE FALLBACK CHARACTER | |
Type: |
Configuration |
Format: |
AT [cmds] %An [cmds] |
Default: |
0 |
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] |
Description: |
Controls the handling of incoming data during auto-reliable time period |
Command |
Function |
í \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 [cmds] %En [cmds] |
Description: |
Controls auto-retrain mode |
Command |
Function |
%E0 |
Auto-retrain disabled |
í %E1 |
Auto-retrain enabled |
BIT-MAPPED REGISTER S14 | ||
Format: |
AT [cmds] S14=n [cmds] | |
Default: |
Unidentified | |
Range: |
0-255 | |
Unit: |
Bit-mapped | |
Description: |
Controls echo, result codes and display, dumb mode, dial mode, stored profile, and answer/originate mode. | |
Bit |
Value |
Function |
0 |
0 í 1 |
Command echo disabled Command echo enabled |
2, 1 |
í 0001 10 |
Result codes enabled Result codes disabled Result codes enabled in originate mode only |
3 |
0 í 1 |
Display result codes in numeric format Display result codes in verbose format |
4 |
í 01 |
Dumb mode disabled Dumb mode enabled |
5 |
í 01 |
Tone dial enabled Pulse dial enabled |
6 |
0 1 |
stored profile 0 stored profile 1 |
7 |
0 í 1 |
Answer mode enabled Originate mode enabled |
BIT-MAPPED REGISTER S16 | ||
Type: |
Register | |
Format: |
AT [cmds] S16=n [cmds] | |
Default: |
23 | |
Range: |
0-55 | |
Unit: |
Bit-mapped | |
Description: |
Grants/denies remote digital loopback; controls clear down signal, auto-retrain, and extended result codes. | |
Bit |
Value |
Function |
0 |
0 í 1 |
Remote digital loopback denied Remote digital loopback allowed |
1 |
0 í 1 |
Disable clear down signal Enable clear down signal |
2 |
0 í 1 |
Auto-retrain disabled Auto-retrain enabled |
3 |
0 |
Not used |
5, 4 |
00 í 0110 11 |
Extended result codes disabled /DCE speed only Extended result codes/DCE speed enabled Extended result codes disabled /DTE speed only Extended result codes/DTE speed enabled |
BIT-MAPPED REGISTER S21 | ||
Format |
AT [cmds] S21=n [cmds] | |
Default: |
Unidentified | |
Range: |
0-255 | |
Unit: |
Bit-mapped | |
Description: |
Selects originate-only mode, line mode, CTS/DCD/DSR signals, low DTR action, and the long space disconnect function. | |
Bit |
Value |
Function |
0 |
í 01 |
Disable originate-only mode Enable originate-only mode |
1 |
í 01 |
Switched line Leased-line |
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 í 1 |
DCD forced high DCD normal |
6 |
í 01 |
DSR forced high DSR normal |
7 |
í 01 |
Long space disconnect function disabled Long space disconnect function enabled |
BIT-MAPPED REGISTER S22 | ||
Format |
AT [cmds] S22=n [cmds] | |
Default: |
118 | |
Range: |
0-255 | |
Unit: |
Bit-mapped | |
Description: |
Controls speaker volume and controls, limits results codes, and pulse dial make/break ratio. | |
Bit |
Value |
Function |
1, 0 |
00 01 í 1011 |
Low level volume Low level volume Medium level volume High level volume |
3, 2 |
00 í 0110 11 |
Speaker off Speaker off on carrier Speaker always on Speaker on during handshake |
6 - 4 |
000 100 101 110 í 111 |
Basic result codes only enabled Basic and connection speed result codes enabled Basic and connection speed result codes and dial-tone detection enabled All result codes except dial-tone detection enabled All result codes enabled |
7 |
í 01 |
39/61ms at 10pps (North America) 33/67ms at 10pps (Europe) |
BIT-MAPPED REGISTER S23 | ||
Format |
AT [cmds] S23=n [cmds] | |
Default: |
Unidentified | |
Range: |
0-186 | |
Unit: |
Bit-mapped | |
Description: |
Controls DTE rate and parity, and sets guard tone. | |
Bit |
Value |
Function |
3 - 0 |
0000 0010 0011 0100 í 01101000 1001 1010 1011 1100 1101 |
Sets serial port speed to 300bps Sets serial port speed to 1200bps Sets serial port speed to 2400bps Sets serial port speed to 4800bps Sets serial port speed to 9600bps Sets serial port speed to 14400bps Sets serial port speed to 19200bps Sets serial port speed to 28800bps Sets serial port speed to 38400bps Sets serial port speed to 57600bps Sets serial port speed to 115200bps |
5, 4 |
í 0001 10 11 |
Parity even Space Parity Parity odd Mark or No Parity |
7, 6 |
í 0001 10 |
Guard tone disabled Guard tone 550Hz enabled Guard tone 1800Hz enabled |
BIT-MAPPED REGISTER S27 | ||
Format |
AT [cmds] S27=n [cmds] | |
Default: |
Unidentified | |
Range: |
0-235 | |
Unit: |
Bit-mapped | |
Description: |
Selects synchronous/asynchronous mode, clock source, and sets DCE speed. | |
Bit |
Value |
Function |
1, 0 |
í 0001 10 11 |
Asynchronous mode, serial port speed follows connect speed Asynchronous off-line command mode and synchronous connect mode Synchronous connect mode Asynchronous off-line command mode on low DTR, synchronous connect mode on high DTR |
3, 2 |
í 0001 10 |
Local modem generates transmit clock source Local DTE generates transmit clock source Remote DCE/DTE generates transmit clock source |
7 - 4 |
0000 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 |
Sets DCE speed to 300bps Sets DCE speed to 1200bps Sets DCE speed to 2400bps Sets DCE speed to 4800bps Sets DCE speed to 7200bps Sets DCE speed to 9600bps Sets DCE speed to 12000bps Sets DCE speed to 14400bps Sets DCE speed to 16800bps Sets DCE speed to 19200bps Sets DCE speed to 21600bps Sets DCE speed to 24000bps Sets DCE speed to 26400bps Sets DCE speed to 28800bps |
BIT-MAPPED REGISTER S28 | ||
Format |
AT [cmds] S28=n [cmds] | |
Default: |
16 | |
Range: |
0-149 | |
Unit: |
Bit-mapped | |
Description: |
Controls power-on auto-connect, security call-back, auto-rate negotiation ,and DCE protocol. | |
Bit |
Value |
Function |
0 |
í 01 |
Disabled power-on auto-connect Enabled power-on auto-connect |
2, 1 |
í 0001 10 |
Disabled security call-back Password security check only Enabled security call-back |
3 |
í 01 |
Disable auto-rate negotiation Enable auto-rate negotiation |
7 - 4 |
0000 í 00010010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 |
ITU-T mode Bell mode Auto-scan mode V.23 mode Set Connection speed to 300bps Set Connection speed to 1200bps Set Connection speed to 2400bps Set Connection speed to 4800bps Set Connection speed to 9600bps Set Connection speed to 14400bps Set Connection speed to 16800bps Set Connection speed to 19200bps Set Connection speed to 21600bps Set Connection speed to 24000bps Set Connection speed to 26400bps Set Connection speed to 28800bps |
BREAK SEND | |
Type: |
Configuration |
Format: |
AT [cmds] \Bn [cmds] |
Default: |
3 |
Range: |
1-9 |
Unit: |
.1 second |
Description: |
Sends break to modem |
BREAK TYPE | |||||
Type: |
Configuration | ||||
Format: |
AT [cmds] \Kn [cmds] | ||||
Description: |
Configures action of break signal | ||||
Command |
Break from DTE in Reliable/Normal mode |
Break from DTE in Direct mode |
Modem receives \B |
Break received from remote modem | |
\K0 |
No break sent to remote modem |
On-line command mode enabled, break sent to remote modem |
Break sent to remote modem and buffered cleared |
Buffers cleared, break sent to DTE | |
\K1 |
Break sent to remote modem immediately and clear buffered |
Send break to remote modem immediately |
Break sent to remote modem and buffered cleared |
Buffers cleared, break sent to DTE | |
\K2 |
No break sent to remote modem |
On-line command mode enabled, break sent to remote modem |
Send break to remote modem immediately |
Break sent immediately to DTE | |
\K3 |
Send break to remote modem immediately |
Send break to remote modem immediately |
Send break to remote modem immediately |
Break sent immediately to DTE | |
\K4 |
No break sent to remote modem |
On-line command mode enabled, break sent to remote modem |
Send break with transmitted data |
Break sent with received data to the DTE | |
í \K5 |
Send break with transmitted data |
Send break to remote modem immediately |
Send break with transmitted data |
Break sent with received data to the DTE |
CLEAR DOWN SIGNAL | ||
Type: |
Configuration | |
Format: |
AT [cmds] %Dn [cmds] | |
Description: |
Controls clear down signal | |
Command |
Function | |
%D0 |
Disable clear down signal | |
í %D1 |
Enable clear down signal |
COMPRESSION | |
Type: |
Configuration |
Format: |
AT [cmds] %Cn [cmds] |
Description: |
Selects data compression |
Command |
Function |
%C0 |
Data compression disabled |
í %C1 |
Data compression enabled |
CONNECT MODE | |
Type: |
Configuration |
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 mode enabled |
\N3 |
MNP reliable mode enabled |
\N4 |
V.42 reliable mode enabled |
\N5 |
Reliable mode enabled |
í \N6 |
Auto-reliable mode enabled |
CONVERT TO MNP RELIABLE MODE | |
Type: |
Immediate |
Format: |
AT [cmds] \Y [cmds] |
Description: |
Converts to MNP reliable mode from normal or direct mode |
COUNTRY CODE | ||
Type: |
Configuration | |
Format: |
AT [cmds] *NCn [cmds] | |
Description: |
Select country code to be used | |
Command |
Function | |
0 |
Austria | |
1 |
Belgium | |
2 |
Denmark | |
3 |
Finland | |
4 |
France | |
5 |
Germany | |
6 |
Ireland | |
7 |
Italy | |
8 |
Luxembourg | |
9 |
Netherlands | |
10 |
Norway | |
11 |
Portugal | |
12 |
Spain | |
13 |
Sweden | |
14 |
Switzerland | |
15 |
United Kingdom | |
16 |
New Zealand | |
17 |
Australia |
DISPLAY PASSWORD | |
Type: |
Configuration |
Format: |
AT [cmds] \P=? [cmds] |
Description: |
Displays a password from non-volatile memory |
Note: NO PASSWORD SAVED is returned if no password was saved. |
ECHO DATA | |
Type: |
Configuration |
Format: |
AT [cmds] \En [cmds] |
Description: |
Enables modem to echo received data |
Command |
Function |
í \E0 |
Data echo disabled |
\E1 |
Data echo enabled |
EXTENDED RESULT CODES | |
Type: |
Configuration |
Format: |
AT [cmds] \Vn [cmds] |
Description: |
Selects extended result codes |
Command |
Function |
\V0 |
Extended result codes/DCE speed disabled |
í \V1 |
Extended result codes/DCE speed enabled |
\V2 |
Extended result codes/DTE speed disabled |
\V3 |
Extended result codes/DTE speed enabled |
FLOW CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] \Gn [cmds] |
Description: |
Selects modem port flow control |
Command |
Function |
í \G0 |
Flow control disabled |
\G1 |
Flow control enabled |
FLOW CONTROL TYPE | |
Type: |
Configuration |
Format: |
AT [cmds] \Qn [cmds] |
Description: |
Sets type of flow control used by modem |
Command |
Function |
\Q0 |
Flow control disabled |
\Q1 |
Bi-directional XON/XOFF flow control enabled |
\Q2 |
CTS flow control by DCE enabled |
í \Q3 |
Bi-directional RTS/CTS flow control enabled |
\Q4 |
Unidirectional XON/XOFF flow control by DCE enabled |
INACTIVITY TIMER | |
Type: |
Configuration |
Format: |
AT [cmds] \Tn [cmds] |
Default: |
0 |
Range: |
0-90 |
Unit: |
1 minute |
Description: |
Sets the length of time that the modem does not receive information before it disconnects. |
INITIATE MNP RELIABLE MODE | |
Type: |
Immediate |
Format: |
AT [cmds] \O [cmds] |
Description: |
Initiates MNP reliable mode from normal or direct mode |
LOCK SERIAL PORT | |
Type: |
Configuration |
Format: |
AT [cmds] \Jn [cmds] |
Description: |
Sets operation of serial port speed |
Command |
Function |
í \J0 |
Serial speed locked |
\J1 |
Serial speed follows connect speed |
MAXIMUM BLOCK SIZE FOR TRANSMISSION | |
Type: |
Configuration |
Format: |
AT [cmds] \An [cmds] |
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 |
í \A3 |
MNP block size is 256 characters |
PASSWORD | |
Type: |
Configuration |
Format: |
AT [cmds] \P=n [cmds] |
Description: |
Stores a password in non-volatile memory |
Note: Maximum of 7 characters and password is not case sensitive. |
POWER-ON AUTO-CONNECT | ||
Type: |
Configuration | |
Format: |
AT [cmds] %Pn [cmds] | |
Description: |
Controls power-on auto-connect | |
Command |
Function | |
í %P0 |
Disabled power-on auto-connect | |
%P1 |
Enabled power-on auto-connect |
REPORT INFORMATION | |
Type: |
Immediate |
Format: |
AT [cmds] In [cmds] |
Description: |
Displays information requested |
Command |
Function |
I0 |
Reports product identification code |
I1 |
Reports ROM checksum |
I2 |
Internal memory test |
I3 |
Reports V.42bis ID |
I4 |
Reports internal ID |
I90 |
Report country code |
SECURITY CALL-BACK | ||
Type: |
Configuration | |
Format: |
AT [cmds] %Sn [cmds] | |
Description: |
Controls security call-back | |
Command |
Function | |
í %S0 |
Disabled security call-back | |
%S1 |
Enabled security call-back | |
%S2 |
Password security check only |
SWITCH TO NORMAL MODE | |
Type: |
Immediate |
Format: |
AT [cmds] \Z [cmds] |
Description: |
Switches to normal mode from MNP mode |
TRANSMISSION LEVEL | |
Type |
Configuration |
Format |
AT [cmds] %Ln [cmds] |
Default |
12 |
Range |
0-15 |
Unit |
-1 dBm |
Description |
Sets the signal level for transmission |
XON/XOFF PASS-THROUGH | |
Type: |
Configuration |
Format: |
AT [cmds] \Xn [cmds] |
Description: |
Selects whether XON/XOFF signals are sent to remote modem |
Command |
Function |
í \X0 |
XON/XOFF signals trapped by local modem |
\X1 |
XON/XOFF passed through local modem |