MULTI-TECH SYSTEMS, INC.
MT5600ZDXV
Card Type |
Modem |
Chip Set |
Unidentified |
I/O Options |
25-pin serial port, power, line in, line out |
Maximum Modem Rate |
56Kbps |
Maximum Fax Rate |
14.4Kbps |
Data Modulation Protocol |
Bell 103/212A ITU-T V.21, V.22, V.22bis, V.23, V.32ter, V.32bis, V.34, K56flex |
Fax Modulation Protocol |
ITU-T V.17, V.27ter, V.29 |
Error Correction/Compression |
MNP5, V.42, V.42bis |
Fax Class |
I & II |
Data Bus |
External |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
Power connector |
CN1 |
Line out (RJ-11) |
CN3 |
25-pin serial port |
CN2 |
Line in (RJ-45 connector) |
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 |
56 |
Unidentified |
On |
Modem connected in K56flex mode |
56 |
Unidentified |
Off |
Modem is not connected in K56flex mode |
28 |
Unidentified |
On |
Modem connected in V.34 mode |
28 |
Unidentified |
Off |
Modem is not connected in V.34 mode |
14 |
Unidentified |
On |
Modem connected in V.32bis mode at 14.4Kbps |
14 |
Unidentified |
Off |
Modem is not connected in V.32bis mode at 14.4Kbps |
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 |
FX | Unidentified |
On |
Modem is in Fax mode |
FX |
Unidentified |
Off |
Modem is not in Fax mode |
SUPPORTED COMMAND SET |
Basic AT Commands |
AT, +++, A/ |
A, B, E, H, M, O, Q, V, W, X, Y, Z |
&C, &G, &T, &W, &Y, &Z |
Extended AT Commands |
\A, \B, \K, \N, \V |
%C, %E, %L, %Q |
Special Commands |
-K, #CID |
S Registers |
S0, S1, S2, S3, S4, S6, S7, S8, S9, S10, S11, S12, S18, S21, S24, S25, S29, S30, S32, S33, |
S38, S91, S92, S95 |
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 |
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. |
í &Q5 |
Error correction mode |
&Q6 |
Buffered asynchronous mode |
CONFIGURATION PROFILES & CALL STATISTICS | |
Type: |
Immediate |
Format: |
AT [cmds] &V [cmds] |
Description: |
Displays active and stored configuration profiles & statistics for last connection |
Command |
Function |
&V0 |
Displays the active configuration, the two stored user profiles, and the first four phone numbers |
&V1 |
Displays statistics for last connection |
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 |
DTR ignored |
&D1 |
DTR drop causes online command mode |
í &D2 |
DTR drop causes modem to go on-hook |
&D3 |
Resets on low DTR |
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. |
DV |
Switch to speakerphone |
D$ |
Calling card "Bong" detection enabled |
D^ |
Data calling tone transmission disabled |
FACTORY DEFAULT PROFILE | |
Type: |
Configuration |
Format: |
AT [cmds] &F [cmds] |
Description: |
Sets values in active profile to values found in the default profile |
Command |
Function |
&F0 |
Load factory configuration 0 |
&F1 |
Load factory configuration 1 |
FLOW CONTROL | |
Type: |
Configuration |
Format: |
AT [cmds] &Kn [cmds] |
Description: |
Enables flow control options |
Command |
Function |
&K0 |
Flow control disabled |
&K3 |
RTS/CTS flow control enabled |
&K4 |
XON/XOFF flow control enabled |
&K5 |
Transparent XON/XOFF flow control enabled |
&K6 |
Both RTS/CTS & XON/XOFF flow control enabled |
JACK TYPE | |
Type: |
Configuration |
Format: |
AT [cmds] &Jn [cmds] |
Description: |
Command non-functional; for compatibility only |
LINE TYPE | |
Type: |
Configuration |
Format: |
AT [cmds] &Ln [cmds] |
Description: |
Command non-functional; for compatibility only |
REPORT INFORMATION | |
Type: |
Immediate |
Format: |
AT [cmds] In [cmds] |
Description: |
Displays information requested |
Command |
Function |
I0 |
Reports product code |
I1 |
Reports ROM checksum |
I2 |
Tests and reports ROM checksum |
I3 |
Reports firmware version and application codes |
I4 |
Reports OEM identifier string in either binary or ASCII format |
I5 |
Reports country code |
I6 |
Reports data pump model and internal code |
I7 |
Reports country 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 |
SPECIAL COMMANDS
BLACKLIST | |
Type: |
Immidiate |
Format: |
AT [cmds] *B [cmds] |
Description: |
Displays blacklisted numbers. If no numbers are blacklisted, returns OK. |
DELAY | |
Type: |
Immidiate |
Format: |
AT [cmds] *D [cmds] |
Description: |
Displays delayed numbers with the delay associated with each. If no numbers are delayed, returns OK. |
DISTINCTIVE RING | |
Type: |
Immediate |
Format: |
AT [cmds] -SDR=n [cmds] |
Description: |
Selects the distinctive ring settings |
Command |
Function |
-SDR=0 |
Distinctive ring disabled |
-SDR=1 |
Type 1 enabled |
-SDR=2 |
Type 2 enabled |
-SDR=3 |
Type 1 and 2 enabled |
-SDR=4 |
Type 3 enabled |
-SDR=5 |
Type 1 and 3 enabled |
-SDR=6 |
Type 2 and 3 enabled |
-SDR=7 |
Type 1, 2, and 3 enabled |
FLASH MEMORY | |
Type: |
Configuration |
Format: |
AT [cmds] **n [cmds] |
Description: |
Controls download to flash memory |
Command |
Function |
**0 |
Downloads last sensed speed into flash memory |
**1 |
Downloads 38.4Kbps into flash memory |
**2 |
Downloads 57.6Kbps into flash memory |
MNP10 - FALLBACK | |
Type: |
Configuration |
Format: |
AT [cmds] -Qn [cmds] |
Description: |
Command non-functional; for compatibility only |
MNP10 - LINK NEGOTIATION | |
Type: |
Configuration |
Format: |
AT [cmds] *Hn [cmds] |
Description: |
Command non-functional; for compatibility only |
MNP10 - POWER LEVEL ADJUST | |
Type: |
Configuration |
Format: |
AT [cmds] )Mn [cmds] |
Description: |
Command non-functional; for compatibility only |
MNP10 - POWER LEVEL ADJUST | |
Type: |
Configuration |
Format: |
AT [cmds] -SEC=n [cmds] |
Range: |
0-30 |
Unit: |
-1dBm |
Description: |
Controls automatic transmit power level adjustment during MNP 10 link negotiation |
Command |
Function |
-SEC=0 |
MNP10 disabled. Transmission level is set in the S91 register |
-SEC=1, [tx_lev] |
MNP10 enabled. Set transmit level |
MODULATION SELECTION | |
Type: |
Configuration |
Format: |
AT [cmds] +MS=x [cmds] |
Description: |
Sets options for active protocol; the transfer rates specified by z and a must be valid for the protocol selected. +MS? queries setting |
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=56 |
K56flex |
x =64 |
Bell 103 |
x =69 |
Bell 212A |
PLUG & PLAY SERIAL NUMBER | |
Type: |
Immediate |
Format: |
AT [cmds] %7n [cmds] |
Range: |
8 |
Unit: |
Hexidecimal |
Description: |
Sets and stores numbers for serial plug & play |
PLUG & PLAY VENDOR ID & PRODUCT NUMBER | |
Type: |
Immediate |
Format: |
AT [cmds] %8n [cmds] |
Range: |
3 (ASCII), 4 (hex) |
Unit: |
ASCII, Hexidecimal |
Description: |
Sets and stores numbers for serial plug & play |
TRANSMISSION LEVEL - CELLULAR | |
Type: |
Configuration |
Format: |
AT [cmds] @Mn [cmds] |
Range: |
0-30 |
Unit: |
-1dBm |
Description: |
Command non-functional; for compatibility only |
V.32 - COMPROMISE EQUALIZER | |
Type: |
Configuration |
Format: |
AT [cmds] :En [cmds] |
Description: |
Command non-functional; for compatibility only |
S(STATUS) -REGISTERS
BACKSPACE CHARACTER | |
Type: |
Register |
Format |
AT [cmds] S5=n [cmds] |
Range: |
0-127 |
Unit: |
ASCII |
Description: |
Selects a character used for backspace <BS> |
Note: A value greater than 32 will disable backspace |
BIT-MAPPED REGISTER S14 | ||
Format: |
AT [cmds] S14=n [cmds] | |
Range: |
0-174 | |
Unit: |
Bit-mapped | |
Description: |
Controls echo, result codes and display, dial mode, and answer/originate mode. | |
Bit |
Value |
Function |
0 |
0 |
Not used |
1 |
0 1 |
Command echo disabled Command echo enabled |
2 |
0 1 |
Result codes enabled Result codes disabled |
3 |
0 1 |
Display result codes in numeric format Display result codes in verbose format |
4 |
0 |
Not used |
5 |
0 1 |
Tone dial enabled Pulse dial enabled |
6 |
0 |
Not used |
7 |
0 1 |
Answer mode enabled Originate mode enabled |
BIT-MAPPED REGISTER S22 | ||
Format |
AT [cmds] S22=n [cmds] | |
Range: |
0-255 | |
Unit: |
Bit-mapped | |
Description: |
Controls speaker volume and controls, limits results codes, and pulse dial make/break ratio. | |
Bit |
Value |
Function |
1, 0 |
00 01 10 11 |
Off volume Low level volume Medium level volume High level volume |
3, 2 |
00 01 10 11 |
Speaker off Speaker off on carrier Speaker always on Speaker on during handshake |
6 - 4 |
000 100 101 110 111 |
Basic result codes only enabled Basic and connection speed result codes enabled Basic and connection speed result codes and dialtone detection enabled All result codes except dialtone detection enabled All result codes enabled |
7 |
0 |
Not used |
BIT-MAPPED REGISTER S23 | ||
Format |
AT [cmds] S23=n [cmds] | |
Range: |
0-189 | |
Unit: |
Bit-mapped | |
Description: |
Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone. | |
Bit |
Value |
Function |
0 |
0 1 |
Remote digital loopback denied Remote digital loopback allowed |
3 - 1 |
000 001 010 011 100 101 110 í 111 |
Sets serial port speed to 0-300bps Sets serial port speed to 600bps Sets serial port speed to 1200bps Sets serial port speed to 2400bps Sets serial port speed to 4800bps Sets serial port speed to 9600bps Sets serial port speed to 19.2Kbps Sets serial port speed to 38.4Kbps or higher |
5, 4 |
00 01 10 í 11 |
Parity even Space Parity Parity odd Mark or No Parity |
7, 6 |
í 0001 10 |
Guard tone disabled Guard tone 550Hz enabled Guard tone 1800Hz enabled |
BIT-MAPPED REGISTER S27 | ||
Format |
AT [cmds] S27=n [cmds] | |
Range: |
0-111 | |
Unit: |
Bit-mapped | |
Description: |
Selects synchronous/asynchronous mode, line type, clock source, and ITU-T/Bell modes. | |
Bit |
Value |
Function |
3, 1, 0 |
00 01 10 11 |
Asynchronous mode, serial port speed follows connect speed Asynchronous off-line command mode and synchronous connect mode Asynchronous off-line command mode; modem autodials first number in directory, then synchronous connect mode Asynchronous off-line command mode on low DTR, synchronous connect mode on high DTR |
2 |
0 1 |
Switched line Leased line |
5, 4 |
00 01 10 |
Local modem generates transmit clock source Local DTE generates transmit clock source Remote DCE/DTE generates transmit clock source |
6 |
0 1 |
ITU/T mode Bell mode |
7 |
0 |
Not Used |
BIT-MAPPED REGISTER S28 | ||
Format |
AT [cmds] S28=n [cmds] | |
Range: |
0-31 | |
Unit: |
Bit-mapped | |
Description: |
Controls pulse dialing. | |
Bit |
Value |
Function |
4, 3 |
00 01 10 11 |
39ms make/61ms break at 10pps 33ms make/67ms break at 10pps 39ms make/61ms break at 20pps 33ms make/67ms break at 20pps |
BIT-MAPPED REGISTER S31 | |||
Format: |
AT [cmds] S31=n [cmds] | ||
Range: |
0-10 | ||
Description: |
Select automode, extended result code format and caller ID functions | ||
Bit |
Value |
Function | |
0 |
0 |
Not used | |
1 |
0 í 1 |
Auto-mode detection disabled Auto-mode detection enabled | |
3, 2 |
00 01 10 |
Enables CONNECT result codes to report DTE speed Full reporting of CONNECT result codes Enables CONNECT result codes to report DCE speed | |
5, 4 |
í 01 2 |
Caller ID disabled Short formatted Caller ID enabled Long unformatted Caller ID enabled |
BIT-MAPPED REGISTER S40 | ||
Format |
AT [cmds] S40=n [cmds] | |
Range: |
0-255 | |
Unit: |
Bit-mapped | |
Description: |
Controls power level and break handling; selects MNP extended services, link negotiation, and block size. | |
Bit |
Value |
Function |
1, 0 |
í 01 |
MNP Extended Services disabled MNP Extended Services enabled |
2 |
0 |
Not used |
5, 4, 3 |
000 001 010 011 100 í 101 |
AT\K0 AT\K1 AT\K2 AT\K3 AT\K4 AT\K5 |
7, 6 |
00 í 0110 11 |
MNP block size is 64 characters MNP block size is 128 characters MNP block size is 192 characters MNP block size is 256 characters |
BIT-MAPPED REGISTER S41 | ||
Format |
AT [cmds] S41=n [cmds] | |
Range: |
Unidentified | |
Unit: |
Bit-mapped | |
Description: |
Selects compression, auto-retrain, and MNP mode. | |
Bit |
Value |
Function |
1 - 0 |
00 01 10 í 11 |
Data compression disabled MNP5 enabled V.42bis enabled MNP5 and V.42bis enabled |
2 |
0 1 |
Auto-retrain, fallback/fall-forward disabled Auto-retrain, fallback/fall-forward enabled |
3-5 |
0 |
Not Used |
6 |
0 í 1 |
Auto-retrain enabled Auto-fallback/fall-forward enabled |
7 |
0 |
Not Used |
CONNECTION FAILURE CODES | |
Type: |
Register |
Format |
AT [cmds] S86? [cmds] |
Description: |
Reports codes which correspond to the possible causes of a connection failure |
Value |
Meaning |
0 |
Normal hang up |
4 |
Carrier signal lost |
5 |
No error-control detected for remote modem during feature negotiation |
9 |
No common protocol found |
12 |
No failure - remote modem disconnected normally |
13 |
Remote modem failed to respond after 10 re-transmissions same message |
14 |
Violation of negotiated protocol caused failure |
DCE LINE SPEED | |
Type: |
Register |
Format |
AT [cmds] S37=n [cmds] |
Description: |
Sets the maximum allowable data exchange rate attempted during handshake process. For compatibility only, use +MS to set line speed |
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 Asynchronous |
MNP or Asynchronous | |
S36=6 |
LAPM, MNP, or hang-up |
MNP or hang-up | |
S36=7 |
LAPM, MNP, or Asynchronous |
MNP or Asynchronous |
ERROR CORRECTION/COMPRESSION | |||
Type: |
Register | ||
Format: |
AT [cmds] S46=n [cmds] | ||
Description: |
Selects active error correction and compression protocols | ||
Command |
Function | ||
S46=136 |
Error correction only, no compression | ||
S46=138 |
Error correction with V.42bis data compression |
FEATURE NEGOTIATION | |||
Type: |
Register | ||
Format: |
AT [cmds] S48=n [cmds] | ||
Description: |
Selects active error correction and compression protocols. See S36, error correction negotiation table | ||
Command |
Function | ||
S48=0 |
Detection negotiation disabled | ||
S48=7 |
Detection negotiation enabled | ||
S48=128 |
Fall-back to options set in S36 |
FLOW CONTROL | |
Type: |
Register |
Format |
AT [cmds] S39? [cmds] |
Description: |
Displays the current flow control |
Value |
Meaning |
0 |
Flow control disabled |
í 3 |
RTS/CTS flow control enabled |
4 |
XON/XOFF flow control enabled |
5 |
Transparent XON/XOFF flow control enabled |
6 |
Both RTS/CTS & XON/XOFF flow control enabled |
TEST MODES | ||
Type: |
Register | |
Format: |
AT [cmds] S16=n [cmds] | |
Range: |
0-125 | |
Unit: |
Bit-mapped | |
Description: |
Controls loopback tests, analog, digital, remote digital, and self tests. | |
Bit |
Value |
Function |
0 |
0 1 |
Local analog loopback not in progress Local analog loopback in progress |
1 |
0 |
Not used |
2 |
0 1 |
Local digital loopback not in progress Local digital loopback in progress |
3 |
0 1 |
Modem not in remote digital loopback Remote digital loopback in progress |
4 |
0 1 |
Remote digital loopback not requested Remote digital loopback requested |
5 |
0 1 |
Remote digital loopback w/ self-test not in progress Remote digital loopback w/ self-test in progress |
6-7 |
0 |
Not used |