MULTI-TECH SYSTEMS, INC. MT3400ZLX Card Type Modem, Fax Chip Set Unidentified Maximum Modem Rate 33.6Kbps Maximum Fax Rate 14.4Kbps Data Modulation Protocol Bell 103/212A ITU-T V.32bis, V.34, V34bis Fax Modulation Protocol ITU-T V.17, V29, V.27ter Error Correction/Compression MNP5, V.42bis Fax Class Class I & II Data Bus PCMCIA 54717 SUPPORTED COMMAND SET Basic AT Commands AT, A/ A, E, H, M, P, Q, T, V, W, X, Z &C, &F, &G, &R, &V, &W, &Z Extended AT Commands \A, \G, \J, \K, \V, \X S Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30 Note: See MHI Help File for full command documentation. Proprietary AT Command Set AUTO-MODE DETECTION Type: Configuration Format: AT [cmds] Nn [cmds] Description: Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed. Command Function N0 In originate mode, handshake begins at line speed designated by the S37 register and the B command N1 In originate mode, handshake begins at line speed designated by the S37 register. and the B command. Modem can shift to a slower speed if necessary. AUTOSYNC COMPATIBILITY Type: Configuration Format: AT [cmds] &J [cmds] Description: Dummy command for autosync compatibility Command Function &J0 Send OK to DTE COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects communications mode Command Mode &M0 Asynchronous mode COMMUNICATION PROTOCOLS Type: Configuration Format: AT [cmds] Bn [cmds] Description: Selects the communication protocol for data calls Note: The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols. Command Protocol B0 ITU-T V.22 at 1200bps or V.21 at 300bps B1 Bell 212A at 1200bps or Bell 103 at 300bps B2 Deselects V.23 reverse channel B3 Deselects V.23 reverse channel B16 V.21 at 300bps DATA SET READY (DSR) Type: Configuration Format: AT [cmds] &Sn [cmds] Description: Selects DSR options Command Function &S0 DSR forced high &S1 DSR high only while modem is connected DATA TERMINAL READY (DTR) Type: Configuration Format: AT [cmds] &Dn [cmds] Description: Selects modem response to DTR Command Function &D0 Modem does not respond to DTR &D1 Modem goes to command mode after DTR goes is off &D2 Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled. &D3 Modem is initialized after DTR goes off DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials telephone number according to any modifiers included in the string Note: Any combination of modifiers can be used to produce the desired dial functions in sequence. Command Function DP Pulse dialing enabled DR Reverse dial. Originate call in answer mode DS=n Dial stored telephone number n DT Tone dialing enabled/Pulse dialing disabled DW Dialing resumed following dial tone detection D, Dialing paused for amount of time specified in S8 register D! Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook. D@ Wait for quiet Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string. D; Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. FLOW CONTROL Type: Configuration Format: AT [cmds] &Kn [cmds] Description: Enables flow control options Command Function &K0 Flow control disabled &K3 RTS to CTS flow control enabled &K4 XON/XOFF flow control enabled ON-LINE Type: Immediate Format: AT [cmds] On [cmds] Description: Controls on-line command (data transmission) state options. Note: The O command must be placed at the end of the command string. Command Function O0 On-line command mode with no retraining enabled O1 On-line command mode with retraining enabled O3-O14 Force modem to a new rate that is user defined by S62 regisiter PULSE DIALING RATIO Type: Configuration Format: AT [cmds] &Pn [cmds] Description: Selects pulse dial make/break ratio Command Function &P0 39/61ms at 10pps (North America) or 33/67 (Japanese version) &P1 33/67ms at 10pps (Europe) or 20pps (Japanese version) RESTORE PROFILE ON POWER-UP Type: Configuration Format: AT [cmds] &Yn [cmds] Description: Restores a selected profile into the active profile on power-up (hard reset) Command Function &Y0 Restore profile 0 on power-up TEST MODES Type: Immediate Format: AT [cmds] &Tn Description: Selects test options Command Function &T0 End current test &T1 Begin local analog loopback test &T3 Begin local digital loopback V.32 - AUTO-RETRAIN Type: Configuration Format: AT [cmds] &Bn [cmds] Description: Controls auto-retrain function if poor line quality is detected Command Function &B1 Auto-retrain enabled if line quality is poor &B2 Auto-retrain disabled; modem tolerates any line Special Commands COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Selects data compression Command Function %C0 Data compression disabled %C1 MNP5 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 Reliable mode enabled \N3 Auto-reliable mode \N4 V.42 or MNP mode 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 \Q3 Bi-directional RTS/CTS flow control enabled INACTIVITY TIMER Type: Configuration Format: AT [cmds] \Tn [cmds] Range: 0-90 Unit: 1 second Description: Sets the length of time that the modem does not receive information before it disconnects. S(STATUS) -REGISTERS DCE LINE SPEED Type: Register Format AT [cmds] S37=n [cmds] Description: Sets the maximum allowable data exchange rate attempted during handshake process. Command Function S37=0 Connects at last speed S37=3 300bps S37=5 1200bps S37=6 2400bps S37=7 4800bps S37=8 7200bps S37=9 9600bps S37=10 12.0Kbps S37=11 14.4Kbps S37=12 16.8Kbps S37=13 19.2Kbps S37=14 21.6Kbps S37=15 24.0Kbps S37=16 26.4Kbps S37=17 28.8Kbps S37=18 33.6Kbps DTE RATE STATUS Type: Register Format AT [cmds] S62=n [cmds] Description: Sets the maximum allowable data exchange rate attempted during handshake process. Command Function S62=0 300bps S62=1 600bps S62=2 1200bps S62=3 2400bps S62=4 4800bps S62=5 9600bps S62=6 7200bps S62=7 12.0Kbps S62=8 14.4Kbps S62=9 16.8Kbps S62=10 19.2Kbps S62=11 21.6Kbps S62=12 24.0Kbps S62=13 26.4Kbps S62=14 28.8Kbps S62=15 38.4Kbps S62=16 57.6Kbps S62=17 115.2Kbps DTE TRANSFER SPEED Type: Register Format AT [cmds] S72=n [cmds] Description: Sets the maximum allowable data transfer speed Command Function S72=0 300bps S72=1 600bps S72=2 600bps S72=3 1200bps S72=4 2400bps S72=5 4800bps S72=6 9600bps S72=7 7200bps S72=8 12.0Kbps S72=9 14.4Kbps S72=10 16.8Kbps S72=11 19.2Kbps S72=12 21.6Kbps S72=13 24.0Kbps S72=14 26.4Kbps S72=15 28.8Kbps S72=16 38.4Kbps S72=17 57.6Kbps S72=18 115.2Kbps INACTIVITY TIMER Type: Register Format: AT [cmds] S46=n [cmds] Range: 0-255 Unit: 1 second Description: Sets the length of time that the modem does not receive information before it goes into standby mode; S46=255 will disable. Default is 100. POWER LEVEL Type: Register Format: AT [cmds] S64=n [cmds] Range: 9-20 Unit: 1dBm Description: Transmission level power adjustment. Note: This register is only available in the Japanese version.