MULTITECH SYSTEMS, INC. ======================= MT932BC/MT932BCI Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 9600bps Maximum Fax Rate 9600bps Data Bus 8-bit ISA Fax Class Class I & II Data Modulation Protocol Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32 Fax Modulation Protocol ITU-T V.21CH2, V.27ter, V.29 Error MNP2-5, V.42, V.42bis Correction/Compression +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |---------------------+----------+----------------+----------| | Line in | CN1 | Line out | CN2 | |---------------------+----------+----------------+----------| | External LEDs | X29 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT SELECTION | |------------------------------------------------------------| | IRQ | JP1/A | JP1/B | JP1/C | JP1/D | JP1/E | |-------+----------+----------+----------+---------+---------| | 2 | Closed | Open | Open | Open | Open | |-------+----------+----------+----------+---------+---------| | 3 | Open | Closed | Open | Open | Open | |-------+----------+----------+----------+---------+---------| | 4 | Open | Open | Closed | Open | Open | |-------+----------+----------+----------+---------+---------| | 5 | Open | Open | Open | Closed | Open | |-------+----------+----------+----------+---------+---------| | 7 | Open | Open | Open | Open | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | BASE I/O ADDRESS SELECTION MODE | |------------------------------------------------------------| | Mode | SW1/8 | |-------------------------------+----------------------------| | i DOS compatible | Off | |-------------------------------+----------------------------| | Extended | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED MODE BASE I/O ADDRESS SELECTION | |------------------------------------------------------------| | Address | SW1/1 | SW1/2 |SW1/3 |SW1/4 |SW1/5 |SW1/6 |SW1/7 | |---------+-------+-------+------+------+------+------+------| | 100h | Off | On | On | On | On | On | On | |---------+-------+-------+------+------+------+------+------| | 200h | On | Off | On | On | On | On | On | |---------+-------+-------+------+------+------+------+------| | 300h | Off | Off | On | On | On | On | On | |---------+-------+-------+------+------+------+------+------| | 400h | On | On | Off | On | On | On | On | |---------+-------+-------+------+------+------+------+------| | 500h | Off | On | Off | On | On | On | On | |---------+-------+-------+------+------+------+------+------| | 2E8h | Off | On | Off | Off | Off | On | Off | | (COM4:) | | | | | | | | |---------+-------+-------+------+------+------+------+------| | 2F8h | Off | Off | Off | Off | Off | On | Off | | (COM2:) | | | | | | | | |---------+-------+-------+------+------+------+------+------| | 3D8h | Off | Off | On | Off | Off | Off | Off | |---------+-------+-------+------+------+------+------+------| | 3E0h | On | On | Off | Off | Off | Off | Off | |---------+-------+-------+------+------+------+------+------| | 3E8h | Off | On | Off | Off | Off | Off | Off | | (COM3:) | | | | | | | | |---------+-------+-------+------+------+------+------+------| | 3F0h | On | Off | Off | Off | Off | Off | Off | |---------+-------+-------+------+------+------+------+------| | 3F8h | Off | Off | Off | Off | Off | Off | Off | | (COM1:) | | | | | | | | |------------------------------------------------------------| | Note: A total of 127 memory base I/O address settings are | | available. The switches are a binary representation of the| | hexadecimal addresses. Switch SW1/1 is the Least | | Significant Bit and switch SW1/7 is the Most Significant | | Bit. The switches have the following decimal values: | | switch SW1/1=8, SW1/2=16, SW1/3=32, SW1/4=64, SW1/5=128, | | SW1/6=256, SW1/7=512.Turn off the switches and add the | | values of the off switches to obtain the correct base I/O | | address. (on=0, off=1) | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR MODE | |------------------------------------------------------------| | Mode | SW2/1 | |-------------------------------+----------------------------| | i Normal | Off | |-------------------------------+----------------------------| | Forced high | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPATIBLE MODE BASE I/O ADDRESS SELECTION | |------------------------------------------------------------| | Address | SW2/2 | SW2/3 | |--------------------+--------------------+------------------| | COM1: (3F8h) | On | On | |--------------------+--------------------+------------------| | COM2: (2F8h) | On | Off | |--------------------+--------------------+------------------| | COM3: (3E8h) | Off | On | |--------------------+--------------------+------------------| | COM4: (2E8h) | Off | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | CARRIER DETECT MODE | |------------------------------------------------------------| | Mode | SW2/4 | |-------------------------------+----------------------------| | i Normal | Off | |-------------------------------+----------------------------| | Forced high | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | NVRAM WRITE PROTECT | |------------------------------------------------------------| | Mode | JP2 | |----------------------------+-------------------------------| | Disabled | Pins 1 & 2 closed | |----------------------------+-------------------------------| | Enabled | Pins 2 & 3 closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY CONFIGURED - DO NOT ALTER | |------------------------------------------------------------| | Jumper | Position | |----------------------------+-------------------------------| | S29 | Pins 2 & 3 closed | |----------------------------+-------------------------------| | S30 | Pins 2 & 3 closed | |----------------------------+-------------------------------| | S32 | Open | +------------------------------------------------------------+ Proprietary Command Set +------------------------------------------------------------+ | AUTO-RELIABLE TIME BUFFER CONFIGURATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $An [cmds] | |--------------+---------------------------------------------| | Example: | AT $A1 &W | |--------------+---------------------------------------------| | Description: | Controls the handling of incoming data | | | during auto-reliable time period. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i $A0 | Data is discarded. | |--------------+---------------------------------------------| | $A1 | Data is buffered. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $EBn [cmds] | |--------------+---------------------------------------------| | Example: | AT $EB1 E1 | |--------------+---------------------------------------------| | Description: | Selects 10- or 11-bit mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i $EB0 | Sets 10-bit mode. | |--------------+---------------------------------------------| | $EB1 | Sets 11-bit mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK ATTEMPTS | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S16=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS16=6 | |--------------+---------------------------------------------| | Default: | 4 | |--------------+---------------------------------------------| | Range: | 1-255 | |--------------+---------------------------------------------| | Unit: | 1 attempt | |--------------+---------------------------------------------| | Description: | Sets the maximum number of login attempts | | | after initial callback connection. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK NUMBER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] [+/-]DT<#>Nnn | |--------------+---------------------------------------------| | Examples: | AT#DB2 +-DT555-1212N10 | |--------------+---------------------------------------------| | Description: | Sets the phone number associated with the | | | password at memory location nn. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | +DT | Modem will initiate callback on successful | | | login. | |--------------+---------------------------------------------| | -DT | Modem will allow immediate entry on | | | successful login without callback. | |--------------+---------------------------------------------| | +-DT | If password is followed by a -, modem will | | | allow immediate entry. If password is | | | followed by a + or nothing, modem will | | | initiate callback. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK PARITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #Pn [cmds] | |--------------+---------------------------------------------| | Example: | AT #P0 #DB1 | |--------------+---------------------------------------------| | Description: | Sets the parity of the modem when in | | | callback mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i #P0 | No parity. | |--------------+---------------------------------------------| | #P1 | Odd parity. | |--------------+---------------------------------------------| | #P2 | Even parity. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK PASSWORD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #CBNnnxxxx | |--------------+---------------------------------------------| | Example: | AT#DB2 #CBN09snarf | |--------------+---------------------------------------------| | Description: | Sets the callback password at memory | | | location nn to xxxx. The password must be | | | between 6 and 10 characters, inclusive. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CALLBACK SECURITY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #DBn [cmds] | |--------------+---------------------------------------------| | Example: | AT #DB1 S0=1 | |--------------+---------------------------------------------| | Description: | Sets the security level of the callback | | | function. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i #DB0 | Disables security and clears callback | | | memory. | |--------------+---------------------------------------------| | #DB1 | Enables remote security only. | |--------------+---------------------------------------------| | #DB2 | Enables local and remote security. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMAND ESCAPE TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %En [cmds] | |--------------+---------------------------------------------| | Example: | AT %E3 &W | |--------------+---------------------------------------------| | Description: | Sets type and response of command escape | | | sequence. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %E0 | Command escape disabled. | |--------------+---------------------------------------------| | i %E1 | TIES escape (+++AT...) | |--------------+---------------------------------------------| | %E2 | AT method. | |--------------+---------------------------------------------| | %E3 | Both TIES and BREAK methods. | |--------------+---------------------------------------------| | %E4 | OK response to command escape disabled. | |--------------+---------------------------------------------| | %E5 | OK response to command escape enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMAND SET | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT &Qn | |--------------+---------------------------------------------| | Example: | AT &Q1 | |--------------+---------------------------------------------| | Description: | Selects standard Hayes or custom command | | | sets. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &Q0 | Multi-Tech custom command set enabled. | |--------------+---------------------------------------------| | &Q1 | Standard Hayes command set enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT &En | |--------------+---------------------------------------------| | Example: | AT &E15 #L0 | |--------------+---------------------------------------------| | Description: | Selects data compression. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &E14 | Data compression disabled. | |--------------+---------------------------------------------| | i &E15 | Data compression enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT #Ln | |--------------+---------------------------------------------| | Example: | AT #L2 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects active compression protocols. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i #L0 | V.42 negotiation enabled. | |--------------+---------------------------------------------| | #L1 | MNP negotiation enabled. | |--------------+---------------------------------------------| | #L2 | LAP-M negotiation enabled. | |--------------+---------------------------------------------| | #L3 | LAP-M enabled, no negotiation. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CTS SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &RFn [cmds] | |--------------+---------------------------------------------| | Example: | AT &RF0 | |--------------+---------------------------------------------| | Description: | Selects the function of the CTS signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &RF0 | CTS is set to RTS. | |--------------+---------------------------------------------| | i &RF1 | CTS is independent of RTS. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL STORED PHONE NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] Nn1 [Nn2, Nn3...] | |--------------+---------------------------------------------| | Example: | ATM0 N1N3N5 | |--------------+---------------------------------------------| | Description: | Dials stored phone number(s). If the first | | | number is busy, the modem will proceed to | | | the next number in the list. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DSR SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &SFn [cmds] | |--------------+---------------------------------------------| | Example: | AT &SF0 | |--------------+---------------------------------------------| | Description: | Selects the function of the DSR signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &SF0 | DSR is set to CD. | |--------------+---------------------------------------------| | &SF1 | DSR is independent of CD. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR DIALING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Dn [cmds] | |--------------+---------------------------------------------| | Example: | AT $D1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Turns DTR dialing on and off. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i $D0 | DTR dialing disabled. | |--------------+---------------------------------------------| | $D1 | DTR dialing enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTR TIMEOUT | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S24=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS24=40 | |--------------+---------------------------------------------| | Default: | 20 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 50 ms | |--------------+---------------------------------------------| | Description: | Sets the time to drop the DTR signal to | | | hangup. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERASE CALLBACK PASSWORD | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] #RCBNn [cmds] | |--------------+---------------------------------------------| | Example: | AT #RCBN05 #RDN05 | |--------------+---------------------------------------------| | Description: | Erases the callback password at the memory | | | location specified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERASE CALLBACK NUMBER | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] #RDNn [cmds] | |--------------+---------------------------------------------| | Example: | AT #RCBN05 #RDN05 | |--------------+---------------------------------------------| | Description: | Erases the callback phone number at the | | | memory location specified. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CORRECTION DISABLE ON CONNECT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Fn [cmds] | |--------------+---------------------------------------------| | Example: | AT $F1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects whether error correction can be | | | disabled by a while handshaking. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $F0 | Error correction handshake interrupt | | | disabled. | |--------------+---------------------------------------------| | i $F1 | Error correction handshake interrupt | | | enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ESCAPE SEQUENCE BUFFER SIZE | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S34=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS34=30 | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | 0-60 | |--------------+---------------------------------------------| | Unit: | 1 byte | |--------------+---------------------------------------------| | Description: | Sets the size of the buffer used to store | | | commands during an escape sequence. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ESCAPE SEQUENCE - OUT OF BAND | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] | |--------------+---------------------------------------------| | Example: | AT #F1 | |--------------+---------------------------------------------| | Description: | Puts the modem in Command Mode. | |--------------+---------------------------------------------| | Notes: | Do not precede this command with AT. | | | | | | refers to the hardware modem break | | | signal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ESCAPE SEQUENCE TIMEOUT | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S32=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS32=30 | |--------------+---------------------------------------------| | Default: | 20 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Sets the maximum amount of time the modem | | | will wait for a while executing an | | | escape sequence. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FACTORY DEFAULTS | |------------------------------------------------------------| | Type: | Immediate/Configuration | |--------------+---------------------------------------------| | Format: | AT &F[n] | |--------------+---------------------------------------------| | Example: | AT &F8 | |--------------+---------------------------------------------| | Description: | Loads factory defaults, or sets write | | | protect on NVRAM. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &F | Reloads defaults by setting. (Immediate, | | | see below.) | |--------------+---------------------------------------------| | i &F8 | Sets &F to read factory defaults from ROM, | | | and disables NVRAM write protect. | |--------------+---------------------------------------------| | &F9 | Sets &F to read defaults from NVRAM, and | | | enables write-protect. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL NORMAL MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E11 O | |--------------+---------------------------------------------| | Description: | Selects normal flow control. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &E10 | Normal mode disabled. | |--------------+---------------------------------------------| | &E11 | Normal mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E4 &W | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &E3 | Flow control disabled. | |--------------+---------------------------------------------| | i &E4 | CTS/RTS flow control enabled. | |--------------+---------------------------------------------| | &E5 | XON/XOFF flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HANDSHAKE ATTEMPTS | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #An [cmds] | |--------------+---------------------------------------------| | Example: | AT #A1 #L3 | |--------------+---------------------------------------------| | Description: | Configures the initial handshake phase. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | #A0 | Attempts in order: 9600bps, 4800bps, | | | 2400bps, 1200bps, 300bps. | |--------------+---------------------------------------------| | #A1 | Attempts only 9600bps. | |--------------+---------------------------------------------| | #A2 | Attempts in order: 9600bps, 4800bps. | |--------------+---------------------------------------------| | #A3 | Attempts in order: 2400bps, 1200bps, | | | 300bps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HELP SCREENS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT $Hn | |--------------+---------------------------------------------| | Example: | AT $H1 | |--------------+---------------------------------------------| | Description: | Shows modem help screens. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $H1 | Shows help screen 1. | |--------------+---------------------------------------------| | $H2 | Shows help screen 2. | |--------------+---------------------------------------------| | $H3 | Shows help screen 3. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LIST CONFIGURATION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT Ln | |--------------+---------------------------------------------| | Example: | AT L5 | |--------------+---------------------------------------------| | Description: | Lists modem configuration. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | L5 | Lists all settings. | |--------------+---------------------------------------------| | L6 | Lists the values of all S-registers. | |--------------+---------------------------------------------| | L7 | Lists extended parameters. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCAL SERIAL PORT SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $SBnnn [cmds] | |--------------+---------------------------------------------| | Example: | AT $MB9600 $SB19200 | |--------------+---------------------------------------------| | Description: | Sets serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $SB300 | Sets 300baud speed. | |--------------+---------------------------------------------| | $SB1200 | Sets 1200baud speed. | |--------------+---------------------------------------------| | $SB2400 | Sets 2400baud speed. | |--------------+---------------------------------------------| | $SB4800 | Sets 4800baud speed. | |--------------+---------------------------------------------| | $SB9600 | Sets 9600baud speed. | |--------------+---------------------------------------------| | $SB19200 | Sets 19.2Kbaud speed. | |--------------+---------------------------------------------| | $SB38400 | Sets 38.4Kbaud speed. | |--------------+---------------------------------------------| | $SB57600 | Sets 57.6Kbaud speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCK SERIAL PORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $BAn [cmds] | |--------------+---------------------------------------------| | Example: | AT $SB57600 $BA0 | |--------------+---------------------------------------------| | Description: | Sets operation of serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i $BA0 | Serial speed locked at rate set by $SB. | |--------------+---------------------------------------------| | $BA1 | Serial speed follows connect speed, | | | ignoring $SB. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOGIN PASSWORD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #Ixxxx | |--------------+---------------------------------------------| | Example: | AT #IMicroHouse | |--------------+---------------------------------------------| | Description: | Sets the login password to xxxx. The | | | password must be between 6 and 10 | | | characters, case sensitive. It defaults to | | | MULTI-TECH. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MAXIMUM BLOCK SIZE FOR TRANSMISSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &BSn [cmds] | |--------------+---------------------------------------------| | Example: | AT &BS1 &MB28800 | |--------------+---------------------------------------------| | Description: | Sets the maximum transmittable block size. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &BS0 | Maximum block size is 64 characters. | |--------------+---------------------------------------------| | i &BS1 | Maximum block size is 128 characters for | | | LAP-M, and 256 characters for MNP. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PACING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E13 | |--------------+---------------------------------------------| | Description: | Selects ENQ/ACK pacing. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &E12 | Disables ENQ/ACK pacing. | |--------------+---------------------------------------------| | i &E13 | Enables ENQ/ACK pacing. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PACING - ENQ/ACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E9 | |--------------+---------------------------------------------| | Description: | Selects ENQ/ACK pacing. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &E8 | Enables ENQ/ACK pacing. | |--------------+---------------------------------------------| | &E9 | Disables ENQ/ACK pacing. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REDIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | ATA: | |--------------+---------------------------------------------| | Example: | ATA: | |--------------+---------------------------------------------| | Description: | Redials the last number dialed until it is | | | no longer busy. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE CONNECT SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT $MBnnn | |--------------+---------------------------------------------| | Example: | AT $MB9600 $SB19200 | |--------------+---------------------------------------------| | Description: | Sets maximum remote connect speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | $MB75 | Sets V.23 (1200bps/75bps bi-directional). | |--------------+---------------------------------------------| | $MB300 | Sets 300bps connect. | |--------------+---------------------------------------------| | $MB1200 | Sets 1200bps connect. | |--------------+---------------------------------------------| | $MB2400 | Sets 2400bps connect. | |--------------+---------------------------------------------| | $MB4800 | Sets 4800bps connect. | |--------------+---------------------------------------------| | $MB9600 | Sets 9600bps connect. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RETRANSMIT FAIL ACTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $Rn [cmds] | |--------------+---------------------------------------------| | Example: | AT $R1 | |--------------+---------------------------------------------| | Description: | Sets whether the modem gives up on a bad | | | connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i $R0 | Hang up after 12 failed retransmissions. | |--------------+---------------------------------------------| | $R1 | Do not hang up after 12 failed | | | retransmissions. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STORE PHONE NUMBER IN NVRAM | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] D<#>Nn [dialstring] | |--------------+---------------------------------------------| | Example: | ATD555-1212N1 | |--------------+---------------------------------------------| | Description: | Stores a phone number in the modem's | | | memory. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TRELLIS MODULATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] #Tn [cmds] | |--------------+---------------------------------------------| | Example: | AT #T1 | |--------------+---------------------------------------------| | Description: | Controls Trellis Coded Modulation. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | #T0 | Disables TCM. | |--------------+---------------------------------------------| | i #T1 | Enables TCM. | +------------------------------------------------------------+ +------------------------------------------------------------+ | UUCP SPOOFING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] $SPn [cmds] | |--------------+---------------------------------------------| | Example: | AT $SP1 O | |--------------+---------------------------------------------| | Description: | Controls the UUCP spoofing function. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i $SP0 | Spoofing disabled. | |--------------+---------------------------------------------| | $SP1 | Spoofing enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42 MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E0 | |--------------+---------------------------------------------| | Description: | Configures the operation of V.42 mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &E0 | Error correction disabled. | |--------------+---------------------------------------------| | i &E1 | V.42 set to auto-reliable. | |--------------+---------------------------------------------| | &E2 | V.42 set to reliable. | +------------------------------------------------------------+ +------------------------------------------------------------+ | XON/XOFF PASS-THROUGH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &En [cmds] | |--------------+---------------------------------------------| | Example: | AT &E7 O | |--------------+---------------------------------------------| | Description: | Selects whether XON/XOFF signals are sent | | | to remote modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | i &E6 | XON/XOFF signals trapped by local modem. | |--------------+---------------------------------------------| | &E7 | XON/XOFF passed through local modem. | +------------------------------------------------------------+