EXP COMPUTER, INC. 288I Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus PCMCIA Type II 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, V.34 Rockwell V.FC Fax Modulation Protocol ITU-T V.17, V.21CH2, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis V1467 Proprietary AT Command Set AUTO-RETRAIN - FALLBACK/FALLFORWARD Type: Configuration Format: AT [cmds] %En [cmds] Example: AT %E1 Description: Controls auto-retrain mode and fallback/fall forward. Command Function %E0 Auto-retrain disabled. %E1 Auto-retrain enabled. %E2 Fallback/fall forward enabled. BIT-MAPPED REGISTERS Register Default S14 138 S21 4 S22 117 S23 55 S27 73 S28 0 S31 2 S40 107 S41 3 S80 0 BREAK SEND Type: Configuration Format: AT [cmds] \Bn [cmds] Example: AT \B3 &W Range: 1-9 Unit: .1 second Description: Sends break to modem. BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Example: AT \K1 Description: Configures action of break signal. Command Break from DTE Modem receives Break from \B remote modem Reliable/Normal mode \K0 Enter command Buffers cleared Buffers cleared mode, do not send and break sent and break sent break to remote to remote to DTE. modem. modem. \K1 Buffers cleared Buffers cleared Buffers cleared and break sent to and break sent and break sent remote modem. to remote to DTE. modem. \K2 Enter command Send break to Send break to mode, do not send remote modem DTE immediately. break to remote immediately. modem. \K3 Send break to Send break to Send break to remote modem remote modem DTE immediately. immediately. immediately. \K4 Enter command Send break to Break sent with mode, do not send remote modem received data to break to remote with the DTE. modem. transmitted data. » \K5 Send break with Send break to Break sent with transmitted data. remote modem received data to with the DTE. transmitted data. CALLER ID Type: Configuration Format: AT [cmds] #CID=n [cmds] Example: AT #CID=2 Description: Controls the Caller ID function. Command Function » #CID=0 Caller ID disabled. #CID=1 Caller ID displays formatted data. #CID=2 Caller ID displays raw hexadecimal data. CELLULAR TRANSMISSION LEVEL Type: Register Format: AT [cmds] S201=n [cmds] Example: AT S201=26 &W Default: Unidentified Range: Unidentified Unit: -dBm Description: Sets the signal level for transmission when in leased line mode. COMPRESSION AND ERROR CORRECTION Type: Configuration Format: AT %Cn Example: AT %C0 *Y1 Description: Selects data compression and error correction. Command Function %C0 Data compression disabled. %C1 Data compression enabled. %C2 Data correction enabled. %C3 Data compression and correction enabled. COMPROMISE EQUALIZER Type: Configuration Format: AT [cmds] :En [cmds] Example: AT :E &W 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 Description: Sets connect mode. Command Function \N0 Normal mode enabled. \N1 Direct mode enabled. \N2 Reliable mode enabled. \N3 Auto-reliable mode enabled. \N4 LAP-M mode only enabled. \N5 MNP mode enabled. DOWNLOAD DRIVER Type: Immediate Format: AT [cmds] ^C2 [cmds] Example: AT ^C2 &W Description: Download cellular phone driver. FAX TRANSMIT LEVEL Type: Register Format: AT [cmds] S92=n [cmds] Example: ATS92=10 Default: 10 Range: 1-15 Unit: -1dBm Description: Controls fax transmission level. FLASH DIAL MODIFIER TIME Format AT [cmds] S29=n [cmds] Example: ATS29=0 Default: 0 Range: 0-255 Unit: 10 ms Description: Time the modem will go on-hook upon receiving the ! dial modifier in dial string. FLOW CONTROL Type: Configuration Format: AT [cmds] \Gn [cmds] Example: AT \G1 &K3 Description: Selects modem port flow control. Command Function \G0 Flow control disabled. \G1 Flow control enabled. HDLC ADDRESS Type: Register Format: AT [cmds] S20=n [cmds] Example: ATS20=6 Default: Unidentified Range: 0-255 Unit: ASCII Description: Sets the HDLC address/BSC character. IDENTIFY DRIVER Type: Immediate Format: AT [cmds] ^I [cmds] Example: AT ^I &W Description: Identifies cellular phone driver. LEASED LINE TRANSMISSION LEVEL Type: Configuration Format: AT [cmds] S99=n [cmds] Example: AT S99=8 Default: 10 Range: 0 -15 Unit: -1 dBm Description: Sets the signal level for transmission when in leased-line mode. LINE SIGNAL LEVEL Type: Configuration Format: AT [cmds] %L [cmds] Example: AT %L &W Description: Returns received line signal level. REPORT SIGNAL QUALITY Type: Immediate Format: AT [cmds] %Q [cmds] Example: AT %Q 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 &MB28800 Description: Sets the maximum transmittable block size. Command Function \A0 Maximum MNP block size is 64 characters. \A1 Maximum MNP block size is 128 characters. \A2 Maximum MNP block size is 192 characters. \A3 Maximum MNP block size is 256 characters. MNP10 COMPRESSION Type: Configuration Format: AT [cmds] -Kn [cmds] Example: AT %C1 -K1 -Q0 Description: Selects MNP10 data compression. Command Function -K0 MNP10 disabled. » -K1 MNP10 enabled. -K2 MNP10 enabled on answer mode only. MNP10 FALL-BACK Type: Configuration Format: AT [cmds] -Qn [cmds] Example: AT *H0 -Q1 Description: Allows MNP10 to fall back to speeds slower than 4800bps. Command Function -Q0 MNP10 at 2400 and 1200bps disabled. » -Q1 MNP10 at 2400 and 1200bps enabled. MNP10 LINK NEGOTIATION Type: Configuration Format: AT [cmds] *Hn [cmds] Example: AT *H0 -Q1 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 Description: Controls automatic transmit power level adjustment during MNP 10 link negotiation. Command Function )M0 Power level adjustment disabled. )M1 Power level adjustment enabled. MODULATION SELECTION DISPLAY Type: Immediate Format: AT [cmds] +MS? Example: AT +MS? Description: Displays modulation, automode, minimum rate and maximum rate settings MODULATION SELECTION Type: Configuration Format: AT [cmds] +MS=xx,y,zzz,aaa [cmds] Example: AT +MS11,1,300,28800 &W Description: Sets options for active protocol. The transfer rates specified by z and a must be valid for the protocol selected. Command Function x=0 V.21 x=1 V.22 x=2 V.22bis x=3 V.23 x=9 V.32 x=10 V.32bis » x=11 V.34 x=64 Bell 103A x=69 Bell 212A x=74 V.FC y=0 Automode disabled. y=1 Auto-detect highest speed enabled. z, a=300 Set minimum or maximum transfer rate at 300bps, respectively. z, a=1200 Set minimum or maximum transfer rate at 1200bps, respectively. z, a=2400 Set minimum or maximum transfer rate at 2400bps, respectively. z, a=4800 Set minimum or maximum transfer rate at 4800bps, respectively. z, a=7200 Set minimum or maximum transfer rate at 7200bps, respectively. z, a=9600 Set minimum or maximum transfer rate at 9600bps, respectively. z, a=12000 Set minimum or maximum transfer rate at 12000bps, respectively. z, a=14400 Set minimum or maximum transfer rate at 14400bps, respectively. z, a=16800 Set minimum or maximum transfer rate at 16800bps, respectively. z, a=19200 Set minimum or maximum transfer rate at 19200bps, respectively. z, a=21600 Set minimum or maximum transfer rate at 21600bps, respectively. z, a=24000 Set minimum or maximum transfer rate at 24000bps, respectively. z, a=26400 Set minimum or maximum transfer rate at 26400bps, respectively. z, a=28800 Set minimum or maximum transfer rate at 28800bps, respectively. REMOTE ACCESS ESCAPE CHARACTER Type: Register Format: AT [cmds] S202=n [cmds] Example: ATS202=6 Default: 170 Range: 0-255 Unit: ASCII Description: Sets the remote access escape character. REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Example: AT I1 O Description: Displays modem properties. Command Function I0 Reports product code. I1 Reports ROM checksum result. I2 Reports OK. I3 Reports firmware version. I4 Reports OEM version. I5 Reports country code. I6 Reports current connection’s statistics. I7 Reports DAA code. SLEEP TIMER Format AT [cmds] S24=n [cmds] Example: ATS24=40 Default: 0 Range: 0 - 255 Unit: 1 second Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode. STATUS INDICATOR Type: Immediate Format: AT [cmds] ^T6 [cmds] Example: AT ^T6 &W Description: indicate status of cellular phone. TEST MODES Format AT [cmds] S16=n [cmds] Example: ATS16=40 Default: 0 Range: 0-125 Unit: Bit-mapped Description: Controls loopback tests, analog, digital, remote digital, and self tests. Bit Value Function 0 » 0 Local analog loopback not in progress. 1 Local analog loopback in progress. 1 0 Not used. 2 » 0 Local digital loopback not in progress. 1 Local digital loopback in progress. 3 » 0 Modem not in remote digital loopback. 1 Remote digital loopback in progress. 4 » 0 Remote digital loopback not requested. 1 Remote digital loopback requested. 5 » 0 Remote digital loopback w/ self-test not in progress. 1 Remote digital loopback w/ self-test in progress. 6 » 0 Local analog loopback w/ self-test not in progress. 1 Local analog loopback w/ self-test in progress. TEST MODE - PTT Type: Configuration Format: AT [cmds] %TT [cmds] Example: AT %TT &W Description: Send PTT test signals for European line test. TRANSMISSION LEVEL Type: Configuration Format: AT [cmds] @Mn [cmds] Example: AT @M25 &W Default: 0 Range: 11-31 Unit: -1 dBm Description: Sets the signal level for transmission. Command Function » @M0 -26dBm @M1 -30dBm @M2-@M10 -10dBm FLOW CONTROL CHARACTER - XOFF Type: Register Format: AT [cmds] S33=n [cmds] Example: ATS33=20 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 Default: 17 Range: 0-255 Unit: ASCII Description: Sets the character used to represent XON.