MULTI-TECH SYSTEMS, INC. MT3334ZDX, MT3334ZDXV Card Type Modem, Fax Chip Set Unidentified I/O Options Serial ports, power jack, line in, line out Maximum Modem Rate 33.6Kbps Maximum Fax Rate 14.4Kbps Data Modulation Protocol Bell 103A/212A ITU-T V.32bis, V.34 Fax Modulation Protocol ITU-T V.17 Error Correction/Compression MNP5, V.42, V.42bis Fax Class Unidentified Data Bus External [Image] CONNECTIONS Function Label Function Label Line in via RJ-11 CN1 Serial port CN3 Line out via RJ-11 CN2 Power jack CN4 DIAGNOSTIC LED(S) LED Color Status Condition TD Unidentified Blinking Modem transmitting data TD Unidentified Off Modem not transmitting data RD Unidentified Blinking Modem is receiving data RD Unidentified Off Modem is not receiving data CD Unidentified On Carrier signal detected CD Unidentified Off Carrier signal not detected V.34 Unidentified On Modem connected in V.34 mode at 33.6Kbps V.34 Unidentified Off Modem is not connected in V.34 mode at 33.6Kbps V.32bis Unidentified On Modem connected in V.32bis mode or less V.32bis Unidentified Off Modem is not connected in V.32bis mode 9.6 Unidentified On Modem is connected at 9.6Kbps 9.6 Unidentified Off Modem is not connected at 9.6Kbps OH Unidentified On Modem is on-hook OH Unidentified Off Modem is off-hook TR Unidentified On DTR signal is high TR Unidentified Off DTR signal is low EC Unidentified On Modem is set for V.42 error compression EC Unidentified Off Modem is not set for V.42 error compression EC Unidentified Blinking Data compression enabled FAX Unidentified On Modem is in Fax mode FAX Unidentified Off Modem is not in Fax mode SUPPORTED COMMAND SET Basic AT Commands AT, A/ A, B, E, F, H, M, O, Q, S, V, Y, Z &C, &F, &G, &V, &Z Extended AT Commands \V S Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S10, S11, S30 Note: See MHI Help File for full command documentation. Proprietary AT Command Set TRANSMIT CARRIER Type: Configuration Format: AT [cmds] Cn [cmds] Description: Controls the transmit carrier switching Command Function C1 Transmit carrier enabled 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 DL Re-dial last number DP Pulse dialing enabled 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. D$ Calling card "Bong" detection enabled DV Switch to speakerphone D^ Data calling tone transmission disabled REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports default speed and controller firmware code I1 Reports ROM checksum I2 Tests and reports ROM checksum I3 Reports default speed and controller firmware code I4 Reports data pump model and revision code SPEAKER VOLUME Type: Configuration Format: AT [cmds] Ln [cmds] Description: Controls speaker volume Command Function L0 Low volume setting L1 Low volume setting L2 Medium volume setting L3 Highest volume setting 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. SELECT CALL PROGRESS RESULT CODES Type: Configuration Format: AT [cmds] Xn [cmds] Description: Enables selection of tone detection and associated result code format options Command Function X0 Busy and dial tone detection disabled; basic result codes enabled. X1 Busy and dial tone detection disabled; extended result codes enabled. X2 Busy tone detection disabled, dial tone detection enabled; extended result codes enabled. X3 Busy tone detection enabled, dial tone detection disabled; extended result codes enabled. X4 Busy and dial tone detection disabled; extended result codes enabled. 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 AUXILLARY RELAY CONTROL Type: Configuration Format: AT [cmds] &J [cmds] Description: Controls auxiliary relay Command Function &J0 Auxiliary relay remains open &J1 Not supported 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 COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects communications mode Command Mode &M0 Asynchronous mode COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Qn [cmds] Description: Selects communications mode options Command Mode &Q0 Asynchronous mode, serial port speed follows connect speed. &Q5 Error correction mode &Q6 Buffered asynchronous mode 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 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 &T6 Request remote digital loopback STORE ACTIVE PROFILE Type: Configuration Format: AT [cmds] &Wn [cmds] Description: Writes the values for the active profile into the non-volatile RAM Command Function &W0 Write the active profile to NVRAM 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 Extended AT Commands BREAK TYPE Type: Configuration Format: AT [cmds] \Kn [cmds] Description: Configures action of break signal Command Break from DTE Modem receives \B Break received from remote modem \K5 Send break with Send break with Break sent with transmitted data transmitted data received data to the DTE 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 V.42/MNP auto-reliable mode enabled \N4 V.42 reliable mode enabled \N5 V.42, MNP, or normal mode COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Selects data compression Command Function %C0 Data compression disabled %C1 V.42bis/MNP5 enabled Special Commands DTR DIALING Type: Configuration Format: AT [cmds] $Dn [cmds] Description: Enables/disables DTR dialing Command Function $D0 DTR dialing disabled $D1 DTR dialing enabled MODEM BAUD RATE Type: Configuration Format: AT [cmds] $MBn [cmds] Description: Selects modem baud rate Command Function $MB75 CCITT V.23 mode $MB300 300bps $MB1200 1200bps $MB2400 2400bps $MB4800 4800bps $MB9600 9600bps $MB14400 14.4Kbps $MB19200 19.2Kbps $MB28800 28.8Kbps $MB33600 33.6Kbps SERIAL PORT BAUD RATE Type: Configuration Format: AT [cmds] $SBn [cmds] Description: Selects serial port baud rate Command Function $SB300 300bps $SB1200 1200bps $SB2400 2400bps $SB4800 4800bps $SB9600 9600bps $SB19200 19.2Kbps $SB38400 38.4Kbps $SB57600 57.6Kbps $SB115200 115.2Kbps S(STATUS) -REGISTERS ESCAPE CHARACTER Type: Register Format AT [cmds] S9=n [cmds] Range: 1-127 Unit: ASCII Description: Defines remote configuration escape character. V.34 MODULATION Type: Register Format AT [cmds] S28=n [cmds] Range: 0-255 Unit: Decimal Description: Enables V.34 modulation Note: S28=0 disables V.34 modulation. V.25 CALLING TONE Type: Register Format AT [cmds] S35=n [cmds] Range: 0-1 Unit: Decimal Description: Enables V.25 data calling tone, which allows remote data/fax/voice discrimination Note: S35=0 disables V.25 data calling tone. ERROR CORRECTION NEGOTIATION Type: Register Format AT [cmds] S36=n [cmds] Description: Selects the action of the modem if it fails to connect when error control is selected. Command S48=7 S48=128 S36=0 LAPM or hang-up Not used S36=1 LAPM or Asynchronous Asynchronous S36=2 LAPM or hang-up Not used S36=3 LAPM or Asynchronous Asynchronous S36=4 LAPM, MNP, or hang-up MNP or hang-up S36=5 LAPM, MNP, or MNP or Asynchronous Asynchronous S36=6 LAPM, MNP, or hang-up MNP or hang-up S36=7 LAPM, MNP, or MNP or Asynchronous Asynchronous 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 Maximum speed S37=1 Reserved S37=2 1200/75bps S37=3 300bps S37=4 Reserved 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 31.2Kbps S37=19 33.6Kbps V32bis, V.22bis AUTO RATE Type: Register Format AT [cmds] S42=n [cmds] Range: 0-1 Unit: Decimal Description: Enables V.32bis and V.22bis auto rate Note: S42=0 disables V.32bis and V.22bis auto rate. For testing purposes only. V32bis STARTUP MODE Type: Register Format AT [cmds] S43=n [cmds] Range: 0-1 Unit: Decimal Description: Enables V.32bis start-up auto mode operation Note: S43=0 disables V.32bis start-up auto mode. For testing purposes only. FEATURE NEGOTIATION Type: Register Format: AT [cmds] S48=n [cmds] Range: 7, 128 Description: Selects active error correction and compression protocols. See S36, error correction negotiation table INACTIVITY TIMER Type: Register Format: AT [cmds] S89=n [cmds] Range: 0, 5-255 Unit: 1 second Description: Sets the length of time that the modem does not receive information before it disconnects; S89=0 will disable.