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# MULTI-TECH SYSTEMS, INC.
MT5634ZLX
Card Type Modem
Chip Set Unidentified
Maximum Modem Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103/212A
Protocol
ITU-T V.22, V.22bis, V.32ter, V.32bis,
V.34, K56flex
Fax Modulation ITU-T V.17, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
Fax Class I & II
Data Bus PCMCIA
55295
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, ‘+++’, A/ |
|------------------------------------------------------------|
| A, E, H, M, P, Q, T, V, W, X, Z |
|------------------------------------------------------------|
| &C, &F, &G, &P, &R, &V, &W, &Y, &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 | Auto-mode detection disabled. Handshake |
| | begins at line speed designated by the S37 |
| | register. If S37=0 handshake follows |
| | interface speed |
|--------------+---------------------------------------------|
| í N1 | Auto-mode detection enabled. Handshake |
| | begins at line speed designated by the S37 |
| | register. If S37=0 handshake at highest |
| | possible speed with fallback to lower speed |
| | if necessary |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|--------------+---------------------------------------------|
| í B1 | Bell 212A at 1200bps/Bell 103 at 300bps |
|--------------+---------------------------------------------|
| B2 | ITU-T V.23 at 75/1200bps originate; |
| | 1200/75bps answer |
|--------------+---------------------------------------------|
| B3 | ITU-T V.23 at 1200/75bps answer; 75/1200bps |
| | originate |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SET READY (DSR) |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Sn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects DSR options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &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 on DTR toggle |
|--------------+---------------------------------------------|
| í &D2 | Modem goes to command mode and disconnects |
| | (hangs up) on DTR toggle; |
| | |
| | Auto-Answer is disabled on low DTR. |
|--------------+---------------------------------------------|
| &D3 | Modem is initialized on DTR toggle |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | Answer mode enabled; originate mode |
| | disabled following handshake initiation. |
|--------------+---------------------------------------------|
| DSn | 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 |
|--------------+---------------------------------------------|
| í &K3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| &K4 | XON/XOFF flow control enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| JACK TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Jn [cmds] |
|--------------+---------------------------------------------|
| Description: | Command non-functional; for compatability |
| | purposes only |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 new rate defined by register |
| | S62 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPEAKER VOLUME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| L0 | Lowest volume setting |
|--------------+---------------------------------------------|
| L1 | Low volume setting |
|--------------+---------------------------------------------|
| L2 | Medium volume setting |
|--------------+---------------------------------------------|
| L3 | Highest volume setting |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+
Extended AT Commands
+------------------------------------------------------------+
| COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects data compression |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %C0 | Data compression disabled |
|--------------+---------------------------------------------|
| í %C1 | MNP5 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 |
|--------------+---------------------------------------------|
| í \N3 | Auto-reliable mode enabled |
|--------------+---------------------------------------------|
| \N4 | V.42 reliable 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 minute |
|--------------+---------------------------------------------|
| 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 |
|--------------+---------------------------------------------|
| í S37=0 | Speed of last connection |
|--------------+---------------------------------------------|
| 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 DTE rate status |
|--------------+---------------------------------------------|
| 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 |
|--------------+---------------------------------------------|
| í S62=16 | 57.6Kbps |
|--------------+---------------------------------------------|
| S62=17 | 115.2Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DTE TRANSFER SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S72=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the DTE speed during data transfer |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í S72=0 | Last auto-baud |
|--------------+---------------------------------------------|
| S72=1 | 300bps |
|--------------+---------------------------------------------|
| 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] S89=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0-65 |
|--------------+---------------------------------------------|
| Default: | 65 |
|--------------+---------------------------------------------|
| Unit: | .1 seconds |
|--------------+---------------------------------------------|
| Description: | Maximum duration of DTE and DCE inactivity |
| | allowed prior to initiating stand-by mode |
|------------------------------------------------------------|
| Note: S30=0 disables the timer and allows indefinite |
| inactivity. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMISSION LEVEL (JAPAN) |
|------------------------------------------------------------|
| Type | Register or Configuration |
|-------------+----------------------------------------------|
| Format | AT [cmds] S64=n [cmds] |
|-------------+----------------------------------------------|
| Range | 9-20 |
|-------------+----------------------------------------------|
| Default | 15 |
|-------------+----------------------------------------------|
| Unit | -1 dBm |
|-------------+----------------------------------------------|
| Description | Sets the signal level for transmission |
| | (Japan version) |