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 MNP5, V.42, V.42bis Correction/Compression V1477 Proprietary AT Command Set ACCEPT RELIABLE MODE Type: Immediate Format: AT [cmds] \U [cmds] Example: AT \U B1 Description: Accepts remote modem’s request for reliable link. AUTO FALL FORWARD/FALLBACK Type: Configuration Format: AT [cmds] %Gn [cmds] Example: AT %G0 &W 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 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 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 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? 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 Command echo disabled. » 1 Command echo enabled. 2 0 Result codes enabled. » 1 Result codes disabled. 3 0 Not used. 4 0 Dumb mode off (normal). » 1 Dumb mode on. 5 » 0 Tone dial enabled. 1 Pulse dial enabled. 6 0 Not used. 7 0 Answer mode enabled. » 1 Originate mode enabled. BIT-MAPPED REGISTER S21 Format AT [cmds] S21? [cmds] Example: ATS21? 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 Selects RJ-11, RJ-41S, or RJ45S jack. 1 Selects RJ-12 or RJ-13 jack. 1 0 Not used. 2 » 0 CTS forced high. 1 CTS follows RTS. 4, 3 00 DTR signal ignored. 01 Modem goes to command mode on low DTR. » 10 Modem disconnects on low DTR. Auto-Answer is disabled. 11 Modem is initialized on low DTR. 5 0 DCD forced high. » 1 DCD normal. 6 » 0 DSR forced high. 1 DSR normal. 7 » 0 Long Space Disconnect function disabled. 1 Long Space Disconnect function enabled. BIT-MAPPED REGISTER S22 Format AT [cmds] S22? [cmds] Example: ATS22? 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 Not used. 01 On volume. » 10 Medium level volume. 11 High level volume. 3, 2 00 Speaker off. » 01 Speaker off on carrier. 10 Speaker always on. 11 Speaker on during handshake. 6, 5, 4 000 Busy and dialtone detection disabled, result codes 0-4 enabled. 100 Busy and dialtone detection disabled, 101 result codes 0-5, 10 enabled. 110 Busy tone detection disabled, dialtone detection enabled, result codes 0-6, 10 » 111 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 39/61ms at 10pps (North America) 1 33/67ms at 10pps (Europe) BIT-MAPPED REGISTER S23 Format AT [cmds] S23? [cmds] Example: ATS23? 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 Remote digital loopback denied. » 1 Remote digital loopback allowed. 3, 2, 1 000 Sets serial port speed to 0-300bps. 001 Sets serial port speed to 1200bps. 010 Sets serial port speed to 2400bps. 011 Sets serial port speed to 4800bps. 100 Sets serial port speed to 7200bps. 101 Sets serial port speed to 9600bps. 110 Sets serial port speed to 38400bps. 5,4 » 00 Parity even. 01 No Parity. 10 Parity odd. 11 Mark. 7, 6 » 00 Guard tone disabled. 01 Guard tone 550Hz enabled. 10 Guard tone 1800Hz enabled. BIT-MAPPED REGISTER S27 Format AT [cmds] S27=n [cmds] Example: ATS27=64 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 Switched line. 1 Lease line. 5, 4 » 0 Modem generates clock source. 6 0 Select CCITT protocols. » 1 Select Bell protocols. BREAK SEND Type: Configuration Format: AT [cmds] \Bn [cmds] Example: AT \B3 &W 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 Description: Configures action of break signal. Command Break from DTE Break from Modem Break from DTE receives \B remote modem Reliable/Normal mode Direct mode \K0 Enter command Send break to Buffers Buffers mode, do not remote modem cleared and cleared and send break to immediately, break sent to break sent to remote modem. then enter remote modem. DTE. command mode. \K1 Buffers cleared Send break to Buffers Buffers and break sent remote modem cleared and cleared and to remote immediately. break sent to break sent to modem. remote modem. DTE. \K2 Enter command Send break to Send break to Send break to mode, do not remote modem remote modem DTE send break to immediately, immediately. immediately. remote modem. then enter command mode. \K3 Send break to Send break to Send break to Send break to remote modem remote modem remote modem DTE immediately. immediately. immediately. immediately. \K4 Enter command Send break to Send break to Break sent mode, do not remote modem remote modem with received send break to immediately, with data to the remote modem. then enter transmitted DTE. command mode. data. » \K5 Send break with Send break to Send break to Break sent transmitted remote modem remote modem with received data. immediately. with data to the transmitted DTE. data. COMPRESSION Type: Configuration Format: AT %Cn Example: AT *EC0 %C1 *AP0 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 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 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 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 Description: Initiates reliable mode link. 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. FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] \Qn [cmds] Example: AT \Q0 A 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 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 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 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 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 Description: Returns to on-line and requests reliable mode connection. REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Example: AT I1 &W 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 Hayes escape sequence. » 1 TIES escape sequence. 1 0 No error corection firmware. » 1 Error corection firmware. 2 0 Serial host interface. » 1 Parallel host interface. 3 0 No external static RAM present. » 1 External static RAM present. 4 0 8K x 8 static RAM present. » 1 32K x 8 static RAM present. RESULT CODE FORMAT Type: Configuration Format: AT [cmds] \Vn [cmds] Example: AT \V0 Q0 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 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 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 Description: Switches to normal mode from MNP mode. 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. V.42 DETECTION PHASE Type: Configuration Format: AT [cmds] -Jn [cmds] Example: AT -J1 &W 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 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 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 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.