MULTI-TECH SYSTEMS, INC. MTA128ST Card Type ISDN TA Chip Set Unidentified I/O Options Power, 25-pin DTE serial port, ISDN interface (RJ-45), Auxiliary interface (RJ-11) ISDN Data Rate 128Kbps ISDN Modulation Protocol V.110, V.120, X.75, ML-PPP, SoftBond Error Correction/Compression Unidentified Data Bus External [Image] CONNECTIONS Function Label Function Label Power connector CN1 Auxiliary interface (RJ-11 connector) CN3 25-pin serial port CN2 ISDN interface (RJ-45 connector) CN4 DIAGNOSTIC LEDS LED Color Status Condition TD Unidentified Blinking Data is being transmitted TD Unidentified Off Data is not being transmitted RD Unidentified Blinking Data is being received RD Unidentified Off Data is not being received LS Unidentified On Link with central office is good LS Unidentified Blinking SPIDS have not been verifies (slow) with central office LS Unidentified Blinking One SPID has been verified with (fast) central office LS Unidentified Off Link with central office is broken B1 Unidentified On Active data connection on B-channel 1 B1 Unidentified Blinking Active analog connection on (slow) B-channel 1 B1 Unidentified Blinking Connection is being made (fast) B1 Unidentified Off B-channel 1 connection is broken B2 Unidentified On Active data connection on B-channel 2 B2 Unidentified Blinking Active analog connection on (slow) B-channel 2 B2 Unidentified Blinking Connection is being made (fast) B2 Unidentified Off B-channel 2 connection is broken TR Unidentified On Data terminal is ready TR Unidentified Off Data terminal is not ready OH Unidentified On Device is off-hook OH Unidentified Off Device is on-hook 128 Unidentified On B-channels have been multiplexed into a single 128Kbps link 128 Unidentified Off B-channels have not been multiplexed into a single 128Kbps link Note: LED 128 also indicates what protocol is being used in conjunction with P1, and P2 DATA PROTOCOL LEDS Protocol 128 P1 P2 V.110 Off Off Off V.120 Off Off On X.75 (1 channel) Off On Off X.75 (2 channel) On On Off PPP (1 channel) Off On On MLPPP (2 channel) On On On Note: P1 and P2 LEDs blink to indicate active data compression SUPPORTED COMMAND SET Basic AT Commands AT, ‘+++’ A, E, H, Q, V &S, &Z S Registers S0, S1, S2, S3, S4, S5, S25 Note: See MHI Help File for full command documentation. Proprietary AT Command Set COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects communications mode. Note: &M1 is not currently supported by TA Command Mode &M0 Asynchronous mode &M1 Synchronous mode DATA COMPRESSION Type: Configuration Format: AT [cmds] &Kn [cmds] Description: Enables/disables data compression Command Function &K0 Data compression disabled &K1 Data compression enabled DATA CARRIER DETECT (DCD) Type: Configuration Format: AT [cmds] &Cn [cmds] Description: Selects whether the DCD option is enabled or disabled Command Function &C0 DCD enabled &C1 DCD enabled after carrier signal detected &C2 DCD drops after disconnect for a time specified by register S10 DATA TERMINAL READY (DTR) Type: Configuration Format: AT [cmds] &Dn [cmds] Description: Selects modem response to DTR Command Mode &D0 Ignore transition of DTR status &D1 Switch to command mode if DTR is low &D2 Abort connection if DTR is low, return to command mode and disable auto-answer. If device is off-line, it will neither answer nor dial when DTR is low &D3 Abort connection and reinitialize on low DTR DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials ISDN 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 DS=n Dial stored telephone number n 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 quick setup profile 0 (modem standard) &F1 Load quick setup profile 1 (V.110) &F2 Load quick setup profile 2 (V.120) &F3 Load quick setup profile 3 (X.75) &F4 Load quick setup profile 4 (MLPPP) FLOW CONTROL Type: Configuration Format: AT [cmds] &En [cmds] Description: Enables flow control options Command Function &E3 Flow control disabled &E4 RTS to CTS flow control enabled &E5 XON/XOFF flow control enabled &E6 When pacing is active, XON/XOFF signals are responded to and discarded by TA &E7 When pacing is active, XON/XOFF signals are passed through local modem &E12 XON/XOFF pacing disabled &E13 XON/XOFF pacing enabled ON-LINE Type: Immediate Format: AT [cmds] On [cmds] Description: Controls on-line command (data transmission) state options. Command Function O0 On-line command mode with no retraining enabled LIST ACTIVE PROFILE Type: Immediate Format: AT [cmds] Ln [cmds] Description: Lists active profile Command Function L5 Lists current operating parameters of TA L6 Lists values currently stored in the S registers REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports product ID I1 Reports firmware version number I2 MTS internal use RTS/CTS Type: Configuration Format: AT [cmds] &Rn [cmds] Description: Selects RTS/CTS options Command Function &R0 CTS follows RTS in data mode; RTS is ignored in command mode. &R1 CTS forced high, RTS is ignored. &R2 CTS is forced high, but drops on disconnect for a time specified by register S10 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; result codes 0 - 4 enabled. X1 Busy and dial tone detection disabled; result codes 0 - 5 & 10 - 14, 17 - 19, 28, & 32 enabled. X2 Extended result codes enabled SOFT RESET Type: Immediate Format: AT [cmds] Zn [cmds] Description: Restores modem profiles previously saved in non-volatile RAM using the &W command. 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 Stores all current AT commands and S-register values in NVRAM &W1 Deletes custom settings on reset or power down. Factory default profile used Extended AT Command Set ESCAPE SEQUENCE OPTIONS Type: Configuration Format: AT [cmds] %En [cmds] Description: Controls escape sequence options Note: %E1 or %E3 may be entered in conjunction with %E5 Command Function %E0 Escape disabled %E1 +++ escape option enabled %E2 escape option enabled %E3 +++ and escape options enabled %E4 OK response to +++ disabled %E5 OK response to +++ enabled SENDING METHOD Type: Configuration Format: AT [cmds] %A97=n [cmds] Description: Selects whether a "sending complete indication" signal is sent or overlap sending is implemented Command Function %A97=0 En bloc sending during cal SETUP enabled %A97=1 Overlap sending during call SETUP enabled SERIAL PORT MODE Type: Configuration Format: AT [cmds] %Sn [cmds] Description: Selects serial port speed Command Function %S0 Automatic speed selection enabled %S1 460.8Kbs Special Commands CONFIGURATION Type: Configuration Format AT [cmds] @CONFIG [cmds] Description: Starts the internal configuration utility. Command must be entered in terminal mode DATA DIRECTORY NUMBER Type: Configuration Format: AT [cmds] !N1=n [cmds] Range: 0 – 24 Unit: 0 - 9, *, # Description: Sets the directory number (DN) for the data channel DATA SPID Type: Configuration Format: AT [cmds] !C6=n [cmds] Range: 0 – 20 Unit: ASCII Description: Specifies the data service profile identifier assigned by the ISDN provider DATA TEI Type: Configuration Format: AT [cmds] !D3=n [cmds] Range: 0 - 63, 240, 241 Unit: ASCII Description: Sets the terminal endpoint identifier for the data channel. 240 (default) sets to automatic. 241 disables DISPLAY NETWORK CONFIGURATION Type: Immediate Format: AT [cmds] !L [cmds] Description: Displays the current DN, SPID, TEI, data protocol; and switch type EMBEDDED PROTOCOL ANALYZER Type: Configuration Format: AT [cmds] >Dn [cmds] Description: Analyzes various protocols Command Function >D0 Display B-channel traffic, decoded as V.120 >D1 Display D-channel traffic, decoding layers 2 & 3 >D2 Display D-channel traffic, decoding layers 2 >D3 Display D-channel traffic, decoding layers 3 >D4 Display B-channel traffic, decoded as X.75 >D98 Embedded protocol analyzer disabled >D99 Embedded protocol analyzer enabled ISDN D-CHANNEL PROTOCOL Type: Configuration Format: AT [cmds] !C0=n [cmds] Description: Selects network switch type Command Function !C0=0 AT&T 5ESS !C0=1 Northern Telecom DMS-100 !C0=2 Euro-ISDN NET3 !C0=3 1TR6 !C0=4 INS64 !C0=5 US NI-1 !C0=6 VN4 PERSISTANT DTR DIALING Type: Configuration Format: AT [cmds] $Dn [cmds] Description: Enables/disables persistent DTR dialing Command Function $D0 PDD disabled $D1 PDD enabled POWER UP DATA BITS Type: Configuration Format AT [cmds] @P4=n [cmds] Description: Sets the data bits at power up Command Function @P4=7 7 bits @P4=8 8 bits POWER UP PARITY Type: Configuration Format AT [cmds] @P3=n [cmds] Description: Sets the parity at power up Command Function @P3=0 Odd parity enabled @P3=1 Even parity enabled @P3=2 Mark parity enabled @P3=3 Space parity enabled @P3=4 Parity disabled POWER UP SPEED Type: Configuration Format AT [cmds] $SBn [cmds] Description: Sets the serial speed negotiated when the TA powers up. If the speed is set to 460.8Kbps than the %S1 mode is initialized. %S1 mode is used for any other rate. Command Function $SB3 300bps $SB12 1200bps $SB24 2400bps $SB48 4800bps $SB96 9600bps $SB192 19.2Kbps $SB384 38.4Kbps $SB576 57.6Kbps $SB1152 115.2Kbps $SB2304 230.4Kbps $SB3608 460.8Kbps POWER UP STOP BITS Type: Configuration Format AT [cmds] @P6=n [cmds] Description: Sets the data bits at power up Command Function @P6=1 1 stop bit @P6=2 2 stop bits RATE ADAPTION PROTOCOL Type: Configuration Format: AT [cmds] !Z=n [cmds] Description: Select rate adaption protocol used to communicate with another TA Command Function !Z=5 V.120 !Z=6 V.110 !Z=9 ML-PPP !Z=12 X.75 RECEIVE GAIN Type: Configuration Format: AT [cmds] !RXGn [cmds] Range: 0 - 10 Unit: ASCII Description: Controls the speaker level of an analog telephone device connected to the AUX port TRANSMIT GAIN Type: Configuration Format: AT [cmds] !TXGn [cmds] Range: 0 - 4 Unit: ASCII Description: Controls microphone amplification of an analog telephone device connected to the AUX port Note: Do not adjust the gain unless it is absolutely necessary. It is very high at non-zero levels. VOICE DIRECTORY NUMBER Type: Configuration Format: AT [cmds] *!N1=n [cmds] Range: 0 - 24 Unit: 0 - 9, *, # Description: Sets the directory number (DN) for the voice channel VOICE SPID Type: Configuration Format: AT [cmds] *!C6=n [cmds] Range: 0 - 20 Unit: ASCII Description: Specifies the voice service profile identifier assigned by the ISDN provider VOICE TEI Type: Configuration Format: AT [cmds] *!D3=n [cmds] Range: 0 - 63, 240, 241 Unit: ASCII Description: Sets the terminal endpoint identifier for the voice channel. 240 (default) sets to automatic. 241 disables XOFF SENDING Type: Configuration Format: AT [cmds] #Xn [cmds] Description: Determines whether single or multiple XOFF characters are sent Command Function #X0 One XOFF character is sent until the buffer reaches the XON level #X1 Multiple XOFF characters are sent for every character received after buffer reaches full level. S(Status) Registers AUTO-PROTOCOL DETECTION Type: Register Format AT [cmds] S52=n [cmds] Description: Enables/disables mechanism for identifying type of protocol Command Function S52=0 Auto-protocol detection disabled S52=1 Auto-protocol detection enabled CALLER LINE ID Type: Register Format AT [cmds] S50=n [cmds] Description: Enables/disables mechanism for identifying the two endpoints of a connection Command Function S50=0 CLI feature disabled S50=1 CLI feature enabled CARRIER LOSS RESPONSE TIME Type: Register Format AT [cmds] S10=n [cmds] Range: 0-255 Unit: .05 second Description: Maximum time allowed by the modem after losing the carrier signal and prior to initiating hang-up process. ESCAPE SEQUENCE Type: Register Format: AT [cmds] S32=n [cmds] Range: 0-255 Unit: .1sec Description: Maximum time allowed by the modem in an escape sequence MAXIMUM FRAME SIZE Type: Register Format: AT [cmds] S53=n [cmds] Range: 0-2048 Unit: ASCII Description: Sets the maximum frame size of data frames in X.75 mode NO CARRIER TIME-OUT Type: Register Format AT [cmds] S7=n [cmds] Range: 0-255 Unit: 1 second Description: Maximum wait time the modem uses after dialing to detect a carrier signal from the remote modem for both originating and answering calls. Default=45