TELEBIT CORPORATION TRAILBLAZER PLUS PC Card Type Modem (synchronous/asynchronous) Processor Motorola 68000 Processor Speed Unidentified Chipset Unidentified Maximum Data Rate 18Kbps Data Bus 8-bit ISA Data Modulation Bell 103A/212A ITU-T V.22, V.22bis Telebit PEP Error Correction/Compression MNP3 [Image] CONNECTIONS Function Label Function Label Line in CN1 Line out CN2 USER CONFIGURABLE SETTINGS Setting Label Position Factory configured - do not alter JP1 Unidentified Factory configured - do not alter E25 Unidentified SERIAL PORT CONFIGURATION Address IRQ E22 E23 E24 3F8h (COM1:) IRQ4 Pins 1 & 2 Pins 1 & 2 Pins 2 & 3 closed closed closed 2F8h (COM2:) IRQ3 Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed 3E8h (COM3:) IRQ4 Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed 2E8h (COM4:) IRQ3 Pins 2 & 3 Pins 2 & 3 Pins 1 & 2 closed closed closed SUPPORTED STANDARD COMMANDS Basic AT Commands +++, ‘comma’, A/ A, C, E, F, H, M, O, V, X, Z &F, &T S-Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12 Note: See MHI documentation for complete information. Proprietary AT Command Set ANSWER/ORIGINATE MODE Type: Register Format: AT [cmds] <>n [cmds] Description: Selects whether the modem answers calls in answer or originate mode. Command Function S100=0 Modem answers calls in answer mode and originates calls in originate mode. S100=1 Modem answers calls in originate mode and originates calls in answer mode. AT PREFIX Type: Register Format: AT [cmds] S63=n [cmds] Description: Selects whether the AT prefix is required in command mode. Command Function S63=0 AT prefix not required. All characters entered in command mode will be assumed to be commands. S63=1 AT prefix required for command mode. AUTO-CONNECT Type: Register Format: AT [cmds] S101=n [cmds] Description: Selects whether the modem will attempt to connect automatically when no carrier is detected even when no call has been made or received. Command Function S101=0 Modem does not attempt to auto-connect. S101=1 Modem attempts to connect in answer mode every 20 seconds. S101=2 Modem attempts to connect in originate mode every 20 seconds. S101=3 Modem attempts to connect in answer mode immediately after carrier is lost, then pauses 20 seconds before retrying. S101=4 Modem attempts to connect in originate mode immediately after carrier is lost, then pauses 20 seconds before retrying. BITS PER CHANNEL - TRANSMIT Type: Read-only Format: AT [cmds] S71? [cmds] Description: Displays the number of bits assigned to each of the 511 transmit channels of a PEP mode connection. BITS PER CHANNEL - RECEIVE Type: Read-only Format: AT [cmds] S73? [cmds] Description: Displays the number of bits assigned to each of the 511 receive channels of a PEP mode connection. BREAK LENGTH Type: Register Format: AT [cmds] S62=n [cmds] Default: 3 Range: 0 - 255 Unit: 50 mS Description: Sets the length of transmitted break signals. BREAK TYPE Type: Register Format: AT [cmds] S54=n [cmds] Description: Configures the modem’s reaction to a break signal. Command Break from Break from DTE in Break received DTE in PEP mode from remote non-PEP mode modem S54=0 Online Online command mode Buffers command mode enabled, break not cleared, break enabled, sent to remote sent to DTE. break not modem. sent to remote modem. S54=1 Break sent to Break sent to Buffers remote modem. remote modem and cleared, break buffers cleared. sent to DTE. S54=2 Break sent to Break sent to Buffers remote modem. remote modem cleared, break immediately. sent to DTE. S54=3 Break sent to Modem sends break Buffers remote modem. in sequence when in cleared, break data mode, and sent to DTE. immediately when in command mode. S54=4 Break signal Break signal Buffers ignored. ignored. cleared, break sent to DTE. COMMAND SET DISABLE Type: Immediate Format: AT [cmds] &B Description: Disables the command set for local commands. COMPRESSION Type: Register Format: AT [cmds] S110=n [cmds] Description: Selects whether the modem will use data compression when connected in PEP mode. Command Function S110=0 Compression disabled. S110=1 Compression enabled if remote modem has compression enabled. S110=255 Compression enabled if remote modem has S110 set to 1. CONNECT MODE Type: Register Format: AT [cmds] S95=n [cmds] Description: Selects the type of non-PEP MNP mode connection that the modem will attempt to make. Command Function S95=0 Normal mode connection only. S95=1 MNP reliable mode connection only. S95=2 MNP auto-reliable mode connection. CTS SIGNAL Type: Register Format: AT [cmds] S67=n [cmds] Description: Controls the behaviour of the CTS signal. Command Function S67=0 CTS is forced high. S67=1 CTS forced high 200 mS after RTS and CD go high. If RTS or CD is low, CTS is forced low. CURRENT RECEIVE RATE Type: Read-only Format: AT [cmds] S72? [cmds] Description: Displays the number of bits per second that the data line is carrying from the remote modem at that moment. Note: This command is only valid in PEP mode. CURRENT TRANSMISSION RATE Type: Read-only Format: AT [cmds] S70? [cmds] Description: Displays the number of bits per second that the data line is carrying to the remote modem at that moment. Note: This command is only valid in PEP mode. DATA FORMAT Type: Register Format: AT [cmds] S60=n [cmds] Description: Sets the format for the modem-to-DTE serial interface. Command Function S60=0 Use 8 data bits, no parity, and 1 stop bit. S60=1 Use 8 data bits, odd parity, and 1 stop bit. S60=2 Use 8 data bits, even parity, and 1 stop bit. S60=3 Use 8 data bits, no parity, and 2 stop bits. S60=4 Use 8 data bits, odd parity, and 2 stop bits. S60=5 Use 8 data bits, even parity, and 2 stop bits. S60=6 Use 7 data bits, no parity, and 1 stop bit. S60=7 Use 7 data bits, odd parity, and 1 stop bit. S60=8 Use 7 data bits, even parity, and 1 stop bit. S60=9 Use 7 data bits, no parity, and 2 stop bits. S60=10 Use 7 data bits, odd parity, and 2 stop bits. S60=11 Use 7 data bits, even parity, and 2 stop bits. S60=12 Use 6 data bits, no parity, and 1 stop bit. S60=13 Use 6 data bits, odd parity, and 1 stop bit. S60=14 Use 6 data bits, even parity, and 1 stop bit. S60=15 Use 6 data bits, no parity, and 2 stop bits. S60=16 Use 6 data bits, odd parity, and 2 stop bits. S60=17 Use 6 data bits, even parity, and 2 stop bits. S60=18 Use 5 data bits, no parity, and 1 stop bit. S60=19 Use 5 data bits, odd parity, and 1 stop bit. S60=20 Use 5 data bits, even parity, and 1 stop bit. S60=21 Use 5 data bits, no parity, and 2 stop bits. S60=22 Use 5 data bits, odd parity, and 2 stop bits. S60=23 Use 5 data bits, even parity, and 2 stop bits. DCD AND DSR SIGNALS Type: Register Format: AT [cmds] S53=n [cmds] Description: Controls the behaviour of the DSR and CD signals. Command Function S53=0 DSR forced high when modem is idle, CD forced high. S53=1 DSR forced high when modem is idle, CD is normal. S53=2 DSR follows CD, CD normal. S53=3 DSR and CD normal. S53=4 DSR forced high when idle and forced low on disconnect, CD normal. DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials the telephone number indicated 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. DNn Dial stored telephone number n. DT Tone dialing enabled. 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; Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. D\x\ Dials the stored telephone number with description x. DIAL INTERRUPT Type: Register Format: AT [cmds] S64=n [cmds] Description: Selects whether the modem will abort a dial, answer, or connect sequence if characters are received from the DTE. Command Function S64=0 Sequence aborted. S64=1 Sequence not aborted. DISPLAY CONFIGURATION Type: Immediate Format: AT [cmds] &Nn [cmds] Description: Displays the configuration stored in non-volatile RAM. DSR DELAY ON DISCONNECT Type: Register Format: AT [cmds] S47=n [cmds] Default: 4 Range: 0 - 255 Unit: 50 mS Description: Sets the time that DSR is forced low after disconnect. DTR DIALING Type: Register Format: AT [cmds] S104=n [cmds] Description: Selects whether the modem will auto-dial the first stored number on DTR signal changes. Command Function S104=0 DTR dialing disabled. S104=1 Modem auto-dials first stored number on low-to-high DTR change. S104=2 Automatically dial first stored number whenever no call is connected and DTR signal is high. DTR SIGNAL Type: Register Format: AT [cmds] S52=n [cmds] Description: Controls the modem’s response to the DTR signal. Command Function S52=0 Modem assumes DTR is forced high. S52=1 Modem goes idle on low DTR. S52=2 Modem is reset on low DTR. ECHO SUPPRESSOR COMPENSATION Type: Register Format: AT [cmds] S121=n [cmds] Description: Selects whether the modem will compensate for echo suppressors. Note: Enabling the echo suppressor compensator reduces throughput by about five percent. Command Function S121=0 Echo suppressor compensator disabled. S121=1 Echo suppressor compensator enabled. EIGHTH BIT FILTER Type: Register Format: AT [cmds] S48=n [cmds] Description: Selects whether the high bit of a character is cleared before detection of XON, XOFF and escape characters. Command Function S48=0 Eighth bit is cleared. S48=1 Eighth bit is not cleared. ESCAPE SEQUENCE RESPONSE Type: Register Format: AT [cmds] S55=n [cmds] Description: Configures the modem’s reaction to an escape sequence. Command Function S55=0 Modem returns to command mode after set guard time has passed and escape characters sent to remote modem. S55=1 Buffers are cleared and escape characters sent to remote modem. S55=2 Escape characters sent to remote modem immediately. S55=3 Escape characters sent with transmitted data. FLOW CONTROL CHARACTER - XOFF Type: Register Format: AT [cmds] S57=n [cmds] Default: 19 Range: 0 - 255 Unit: ASCII Description: Sets the character used to represent the XOFF character. FLOW CONTROL CHARACTER - XON Type: Register Format: AT [cmds] S56=n [cmds] Default: 17 Range: 0 - 255 Unit: ASCII Description: Sets the character used to represent the XON character. FLOW CONTROL TYPE - DCE Type: Register Format: AT [cmds] S68=n [cmds] Description: Sets type of flow control used by the modem. Command Function S68=0 Flow control disabled. S68=2 Unidirectional RTS flow control enabled. S68=3 Bidirectional XON/XOFF flow control enabled. S68=4 Bidirectional XON/XOFF and RTS/CTS enabled. S68=5 Bidirectional ENQ/ACK flow control enabled. S68=6 Bidirectional XON/XOFF and ENQ/ACK flow control enabled. S68=255 Flow control specified in S58 is used. If S58 is set to 1, then DCE flow control is disabled. FLOW CONTROL TYPE - DTE Type: Register Format: AT [cmds] S58=n [cmds] Description: Sets type of flow control used by the DTE. Command Function S58=0 Flow control disabled. S58=1 Bidirectional RTS/CTS flow control enabled. S58=2 Unidirectional RTS flow control enabled. S58=3 Bidirectional XON/XOFF flow control enabled. S58=4 Bidirectional XON/XOFF and RTS/CTS enabled. S58=5 Bidirectional ENQ/ACK flow control enabled. S58=6 Bidirectional XON/XOFF and ENQ/ACK flow control enabled. FREQUENCY OFFSET Type: Read-only Format: AT [cmds] S77? [cmds] Description: Displays the frequency offset for the current connection. GUARD TONE Type: Register Format: AT [cmds] S91=n [cmds] Description: Commands the modem to transmit a guard tone in V.22/V.22bis mode. Command Function S91=0 Guard tone disabled. S91=1 1800Hz guard tone enabled. S91=2 550Hz guard tone enabled. KERMIT MARK CHARACTER Type: Register Format: AT [cmds] S112=n [cmds] Default: 1 Range: 0 - 127 Unit: 1 ASCII character Description: Sets the character that will be used as the beginning of packet marker when in Kermit protocol mode. LINE NOISE Type: Read-only Format: AT [cmds] S76? [cmds] Description: Displays the line noise level for each of the 511 channels of a PEP mode connection. LINE QUALITY Type: Read-only Format: AT [cmds] S78? [cmds] Description: Displays the line quality of the current connection. Note: This command is not valid in PEP mode. LOCAL SERIAL PORT SPEED Type: Register Format: AT [cmds] S51=n [cmds] Description: Selects the speed at which the modem communicates with the host computer. Command Function S51=0 Set speed to 300bps. S51=1 Set speed to 1200bps. S51=2 Set speed to 2400bps. S51=3 Set speed to 4800bps. S51=4 Set speed to 9600bps. S51=5 Set speed to 19.2Kbps. S51=255 Auto-detect speed from received "A" or "a" character. LOCK SERIAL PORT Type: Register Format: AT [cmds] S66=n [cmds] Description: Sets operation of serial port speed. Command Function S66=0 Serial speed follows connect speed. S66=1 Serial speed locked. PACKETS ACCEPTED Type: Read-only Format: AT [cmds] S75? [cmds] Description: Displays the number of packets that the modem has accepted without errors. Note: This command is only valid in PEP mode. PACKETS RETRANSMITTED Type: Read-only Format: AT [cmds] S74? [cmds] Description: Displays the number of packets that the modem has requested a retransmit for due to errors. Note: This command is only valid in PEP mode. PEP NEGOTIATION TONES Type: Register Format: AT [cmds] S92=n [cmds] Description: Selects when in the protocol negotiation sequence the PEP tones are sent. Command Function S92=0 Send PEP tones at beginning of negotiation sequence. S92=1 Send PEP tones at end of negotiation sequence. PRODUCT ID NUMBER Type: Register Format: AT [cmds] S49=n [cmds] Description: Selects what the modem will report as its product ID number. Command Function S49=0 Modem reports normal ID number. S49=1 Modem reports 123 as its ID number. PROMPT CHARACTER Type: Register Format: AT [cmds] S59=n [cmds] Default: 0 Range: 0 - 255 Unit: 1 ASCII character Description: Sets what character will be used as a prompt when in command mode. If S59 is set to 0 then no prompt will be given. PROTOCOL SELECTION Type: Register Format: AT [cmds] S90=n [cmds] Description: Selects which protocol will be used when making 1200bps connections. Command Function S90=0 Use Bell 212A. S90=1 Use V.22. PROTOCOL/SPEED Type: Register Format: AT [cmds] S50=n [cmds] Description: Selects the protocol used for communications. Command Function S50=0 Auto-detect fastest common protocol. S50=1 Use Bell 103. S50=2 Use Bell 212A or V.22. S50=3 Use V.22bis. S50=255 Use PEP. REMOTE CONFIGURATION Type: Immediate Format: AT [cmds] %cmds Description: Attempts to execute the command string following the percent sign on the remote modem. If remote configuration is disabled, the modem will give no response; otherwise, it will respond OK. REMOTE CONFIGURATION ENABLE Type: Register Format: AT [cmds] S45=n [cmds] Description: Selects whether the modem will respond to remote configuration commands. Command Function S45=0 Remote configuration disabled. S45=255 Remote configuration enabled. REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested. Command Function I0 Reports modem model and revision. I1 Reports error code for the last executed test. I2 Reports the current connect mode. I3 Reports firmware revision. I4 Reports current connection statistics. RESULT CODES Type: Configuration Format: AT [cmds] Qn [cmds] Description: Selects when result codes will be reported. Command Function Q0 All result codes will be reported. Q1 Only remote result codes will be reported. Q2 Only local result codes will be reported. Q3 No result codes will be reported. Q4 All remote result codes will be reported; local result codes will only be reported if an ATD or ATA command was entered. Q5 Local result codes will only be reported if an ATD or ATA command was entered. Q6 All remote result codes will be reported; local result codes will only be reported if the local modem Is originating. Q7 Local result codes will only be reported if the local modem Is originating. RETRAIN Type: Immediate Format: AT [cmds] &Rn [cmds] Description: Initiates a retrain or a re-negotiation of features. Command Function &R0 Force retrain. &R1 Force re-negotiation of features. SOFT RESET Type: Immediate Format: AT [cmds] &En [cmds] Description: Restores modem profiles previously saved in non-volatile RAM using the &W command. STORE TELEPHONE NUMBER Type: Configuration Format: AT [cmds] Nn=<#>\xxxx\ [cmds] Description: Stores the indicated telephone number at memory location n. The string xxxx between the backslashes sets an optional name for that stored number. Note: If additional commands are to be given after this command, the backslashes must be used even if there is no string between them. TRANSFER PROTOCOL SELECTION Type: Register Format: AT [cmds] S111=n [cmds] Description: Selects which transfer protocol the should use. Command Function S111=0 No protocol will be used. S111=10 Kermit with no parity enabled. S111=11 Kermit with odd parity enabled. S111=12 Kermit with even parity enabled. S111=13 Kermit with MARK parity enabled. S111=14 Kermit with SPACE parity enabled. S111=20 XModem and YModem enabled. S111=30 UUCP G protocol enabled. S111=255 Use protocol specified by remote modem. VOICE MODE Type: Immdeiate Format: AT [cmds] G [cmds] Description: Commands the modem to break the data connection and go on-hook so that the line may be used for voice mode. If the telephone’s handset is picked up, the call will not be disconnected. XOFF REISSUE Type: Register Format: AT [cmds] S65=n [cmds] Description: Selects whether the modem will reissue XOFF characters if the DTE continues to transmit after an XOFF. Command Function S65=0 Modem will not reissue XOFF characters. S65=1 Modem will reissue XOFF characters.