MEGAHERTZ CORPORATION ===================== CC3288/XJ2288 Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus PCMCIA type II Fax Class Class I & II Data Modulation Bell 103A/212A Protocol ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29 Protocol Error MNP5, V.42, V.42bis Correction/Compression V1301 Proprietary AT Command Set +------------------------------------------------------------+ | AUTO FALL FORWARD/FALLBACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Gn [cmds] | |--------------+---------------------------------------------| | Example: | AT %G &W | |--------------+---------------------------------------------| | Description: | Selects auto fallback. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %G1 | Fallback disabled. | |--------------+---------------------------------------------| |>> %G0 | Fallback enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO FALLBACK CHARACTER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S43=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S43=13 | |--------------+---------------------------------------------| | Default: | 13 | |--------------+---------------------------------------------| | Range: | 0 - 127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Set auto fallback character during MNP | | | negotiation. | |--------------+---------------------------------------------| | Notes | S43=0, disabled. S43=(1 - 127), enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO SLEEP TIMER | |------------------------------------------------------------| | Format | AT [cmds] S46=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S46= 100 | |--------------+---------------------------------------------| | Default: | 100 | |--------------+---------------------------------------------| | Range: | 0 - 255 | |--------------+---------------------------------------------| | Unit: | 100 ms | |--------------+---------------------------------------------| | Description: | Maximum duration of DTE and DCE inactivity | | | allowed prior to initiating low-power sleep | | | mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE FALLBACK CHARACTER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] %An [cmds] | |--------------+---------------------------------------------| | Example: | AT %A20 | |--------------+---------------------------------------------| | Default: | 13 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used as the | | | auto-reliable fallback character. %A0 will | | | disable this function. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE TIME BUFFER CONFIGURATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Cn [cmds] | |--------------+---------------------------------------------| | Example: | AT \C1 &W | |--------------+---------------------------------------------| | Description: | Controls the handling of incoming data | | | during auto-reliable time period. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \C0 | Data is discarded. | |--------------+---------------------------------------------| | \C1 | Data is buffered. | |--------------+---------------------------------------------| | \C2 | Data is discarded, modem returns to normal | | | mode on receiving auto-reliable fallback | | | character. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTOSYNC HDLC ADDRESS | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S20=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S20=6 | |--------------+---------------------------------------------| | Default: | 255 | |--------------+---------------------------------------------| | Description: | HDLC mode = HDLC address; Bisync sync | | | character. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S14 | |------------------------------------------------------------| | Format | AT [cmds] S14=n [cmds] | |-----------------+------------------------------------------| | Example: | AT S14=170 | |-----------------+------------------------------------------| | Default: | 138 | |-----------------+------------------------------------------| | Range: | 0 - 190 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Controls echo, result codes, result code | | | display, dumb mode, 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 1 | AT command set disabled. | | | | | | | | AT command set enabled | |----------+------------+------------------------------------| | 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 S21 | |------------------------------------------------------------| | Format | AT [cmds] S21=n [cmds] | |-----------------+------------------------------------------| | Example: | AT S21=48 | |-----------------+------------------------------------------| | Default: | 0 | |-----------------+------------------------------------------| | Range: | 0 - 124 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Selects CTS signal, low DTR action, DCD | | | signal, and DSR signal. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 1, 0 | 0 | Not used. | |-----------+-------+----------------------------------------| | 2 | 0 >> 1 | CTS follows RTS. | | | | | | | | CTS forced high. | |-----------+-------+----------------------------------------| | 4, 3 | 00 01 | DTR signal ignored. | | |>> 10 | | | | 11 | Modem goes to command mode on low DTR. | | | | | | | | Modem disconnects on low DTR. | | | | Auto-Answer is disabled. | | | | | | | | Modem is initialized on low DTR. | |-----------+-------+----------------------------------------| | 5 | 0 >> 1 | DCD forced high. | | | | | | | | DCD normal. | |-----------+-------+----------------------------------------| | 6 |>> 0 1 | DSR forced high. | | | | | | | | DSR normal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S22 | |------------------------------------------------------------| | Format | AT [cmds] S22=n [cmds] | |----------------+-------------------------------------------| | Example: | AT S22=118 | |----------------+-------------------------------------------| | Default: | 118 | |----------------+-------------------------------------------| | Range: | 0 - 255 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls speaker volume and controls, and | | | limits results codes. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 1, 0 | 00 01 | Off volume. | | |>> 10 | | | | 11 | On volume. | | | | | | | | Medium level volume. | | | | | | | | High level volume. | |-----------+-------+----------------------------------------| | 3, 2 | 00 >> | Speaker off. | | | 01 10 | | | | 11 | Speaker off on carrier. | | | | | | | | Speaker always on. | | | | | | | | Speaker on during handshake. | |-----------+-------+----------------------------------------| | 6, 5, 4 | 000 | Basic result codes only enabled. | | | 100 | | | | 101 | Basic and connection speed result | | | 110 >> | codes enabled. | | | 111 | | | | | Basic and connection speed result | | | | codes and dialtone detection enabled. | | | | | | | | All result codes except dialtone | | | | detection enabled. | | | | | | | | All result codes enabled. | |-----------+-------+----------------------------------------| | 7 |>> 0 1 | &P0 enabled. | | | | | | | | &P1 enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S-23 | |------------------------------------------------------------| | Format | AT [cmds] S23=n [cmds] | |-----------------+------------------------------------------| | Example: | AT S23=15 | |-----------------+------------------------------------------| | Default: | 15 | |-----------------+------------------------------------------| | Range: | 0 - 241 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Controls guard tones. Also indicates | | | detected serial port speed and parity. | | | Also provides storage for remote digital | | | loopback tests. | |------------------------------------------------------------| | Bit | Value | Function | |------------+------------+----------------------------------| | 0 | 0 >> 1 | &T5 enabled. | | | | | | | | &T4 enabled. | |------------+------------+----------------------------------| | 3, 2, 1 | 0 | Not used. | |------------+------------+----------------------------------| | 5, 4 |>> 00 01 10 | Even parity. | | | 11 | | | | | Space parity. | | | | | | | | Odd parity. | | | | | | | | Mark parity. | |------------+------------+----------------------------------| | 7, 6 |>> 00 01 10 | Guard tone disabled. | | | | | | | | 550Hz guard tone enabled. | | | | | | | | 1800Hz guard tone enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27=n [cmds] | |-----------------+------------------------------------------| | Example: | AT S27=9 | |-----------------+------------------------------------------| | Default: | 64 | |-----------------+------------------------------------------| | Range: | 0 - 127 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Selects sync/async mode, Line type, | | | internal clock, and ITU-T/Bell modes. | |------------------------------------------------------------| | Bit | Value | Function | |------------+-------+---------------------------------------| | 3, 1, 0 |>> 000 | Asynchronous mode, serial port speed | | | 001 | follows connect speed. | | | 010 | | | | 011 | Asynchronous command mode and | | | 100 | synchronous connect mode. | | | | | | | | Asynchronous command mode and | | | | synchronous connect mode, DTR dialing | | | | enabled. | | | | | | | | Asynchronous command mode on low DTR, | | | | synchronous connect mode on high DTR. | | | | | | | | Hayes AutoSync(TM) mode - serial port | | | | locked at 9600bps. | |------------+-------+---------------------------------------| | 2 |>> 0 1 | Dial up line. | | | | | | | | Leased line. | |------------+-------+---------------------------------------| | 5, 4 |>> 00 | Internal DTE transmit clock source. | | | 01 10 | | | | | External DTE transmit clock source. | | | | | | | | Slave DTE transmit clock source. | |------------+-------+---------------------------------------| | 6 | 0 >> 1 | CCITT mode. | | | | | | | | Bell mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S40 | |------------------------------------------------------------| | Format | AT [cmds] S40=n [cmds] | |----------------+-------------------------------------------| | Example: | AT S40=65 | |----------------+-------------------------------------------| | Default: | 77 | |----------------+-------------------------------------------| | Range: | 0 - 65 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls active protocols and V.42 | | | detection. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 | 0 >> 1 | Automatic mode-detection disabled | | | | | | | | In originate mode, handshake begins | | | | at line speed designated by the S37 | | | | register. Modem can shift to a slower | | | | speed if necessary. | | | | | | | | In answer mode, handshake attempted | | | | with the following protocols in order | | | | - V.FC, V.32bis, V.32, V.22bis, V.22 | | | | or Bell 212, V.21, and Bell 103 | |----------+-------+-----------------------------------------| | 1 | 0 | Not used. | |----------+-------+-----------------------------------------| | 3 - 2 | 1 | Not used. | |----------+-------+-----------------------------------------| | 5 - 4 | 0 | Not used. | |----------+-------+-----------------------------------------| | 6 | 0 >> 1 | V.42 detection disabled. | | | | | | | | V.42 detection enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S41 | |------------------------------------------------------------| | Format | AT [cmds] S41=n [cmds] | |-----------------------+------------------------------------| | Example: | AT S41=0 | |-----------------------+------------------------------------| | Default: | 0 | |-----------------------+------------------------------------| | Range: | 0 - 2 | |-----------------------+------------------------------------| | Unit: | Bit-mapped | |-----------------------+------------------------------------| | Description: | Connect message display. | |------------------------------------------------------------| | Value | Function | |-----------+------------------------------------------------| |>> S41=0 | Connect with DTE speed. | |-----------+------------------------------------------------| | S41=1 | Connect with carrier, protocol, and | | | compression. | |-----------+------------------------------------------------| | S41=2 | Connect with DCE speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S44 | |------------------------------------------------------------| | Format | AT [cmds] S44=n [cmds] | |-----------------+------------------------------------------| | Example: | AT S44=23 | |-----------------+------------------------------------------| | Default: | 23 | |-----------------+------------------------------------------| | Range: | 0 - 23 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Selects V.42 status, V.42bis, and | | | fallback. | |------------------------------------------------------------| | Bit | Value | Function | |------------+-------+---------------------------------------| | 0 | 0 >> 1 | V.42bis status disabled. | | | | | | | | V.42bis status enabled. | |------------+-------+---------------------------------------| | 2, 1 | 00 01 | V.42bis disabled. | | | 10 >> | | | | 11 | V.42bis when transmitting enabled. | | | | | | | | V.42bis when receiving enabled. | | | | | | | | V.42bis when transmitting/receiving | | | | enabled. | |------------+-------+---------------------------------------| | 3 | 0 | Not used. | |------------+-------+---------------------------------------| | 4 | 0 >> 1 | Fallback disabled. | | | | | | | | Fallback enabled. | |------------+-------+---------------------------------------| | 7, 6, 5 | 0 | Not used. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S48 | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S48=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S48=0 | |--------------+---------------------------------------------| | Description: | Sets auto-reliable buffer. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S48=0 | Data is discarded. | |--------------+---------------------------------------------| | S48=1 | Data is buffered. | |--------------+---------------------------------------------| | S48=2 | Data is discarded, modem returns to normal | | | mode on receiving auto-reliable fallback | | | character. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S49 | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S49=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S49=255 | |--------------+---------------------------------------------| | Description: | Set maximum block size. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S49=32 | Maximum MNP block size is 32 characters. | |--------------+---------------------------------------------| | S49=63 | Maximum MNP block size is 64 characters. | |--------------+---------------------------------------------| | S49=127 | Maximum MNP block size is 128 characters. | |--------------+---------------------------------------------| | S49=191 | Maximum MNP block size is 192 characters. | |--------------+---------------------------------------------| |>> S49=255 | Maximum MNP block size is 256 characters. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S51 | |------------------------------------------------------------| | Format | AT [cmds] S51=n [cmds] | |----------------+-------------------------------------------| | Example: | AT S51=40 | |----------------+-------------------------------------------| | Default: | 3 | |----------------+-------------------------------------------| | Range: | 0 - 115 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | selects flow control, | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 2, 1, 0 | 000 | Flow control disabled. | | | 001 | | | | 010 >> | XON/XOFF flow control enabled. | | | 011 | | | | | CTS flow control to DTE enabled. | | | | | | | | RTS/CTS flow control enabled. | |-----------+-------+----------------------------------------| | 3 | 0 | Not used. | |-----------+-------+----------------------------------------| | 4 |>> 0 1 | Flow control disabled. | | | | | | | | Flow control to XON/XOFF flow enabled. | |-----------+-------+----------------------------------------| | 5 |>> 0 1 | Serial speed locked. | | | | | | | | Serial speed follows connect speed. | |-----------+-------+----------------------------------------| | 7, 6 |>> 0 1 | XON/XOFF signals trapped by local | | | | modem. | | | | | | | | XON/XOFF passed through local modem. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S54 | |------------------------------------------------------------| | Format | AT [cmds] S54=n [cmds] | |-----------------+------------------------------------------| | Example: | AT S54=69 | |-----------------+------------------------------------------| | Default: | 0 | |-----------------+------------------------------------------| | Range: | 0 - 255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Selects the communication protocol for | | | data calls, and protocol result code. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-----------+------------------------------------| | 0 |>> 0 1 | B2 is enabled. | | | | | | | | B2 is not enabled. | |-----------+-----------+------------------------------------| | 1 |>> 0 1 | B3 is enabled | | | | | | | | B3 is not enabled. | |-----------+-----------+------------------------------------| | 6 - 2 | 0 | Not used. | |-----------+-----------+------------------------------------| | 7 |>> 0 1 | Protocol result code disabled. | | | | | | | | Protocol result code enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK SEND | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Bn [cmds] | |--------------+---------------------------------------------| | Example: | AT \B3 &W | |--------------+---------------------------------------------| | Range: | 1-9 | |--------------+---------------------------------------------| | Unit: | .1 second | |--------------+---------------------------------------------| | Description: | Sends break to modem. | +------------------------------------------------------------+ +----------------------------------------------------------------+ | BREAK TYPE | |----------------------------------------------------------------| |Type: |Configuration | |------------------+---------------------------------------------| |Format: |AT [cmds] \Kn [cmds] | |------------------+---------------------------------------------| |Example: |AT \K1 | |------------------+---------------------------------------------| |Description: |Configures action of break signal. | |----------------------------------------------------------------| | Command |Break from DTE | Break from | Modem | Break from | | | | DTE |receives \B |remote modem| | |Reliable/Normal| | | | | | mode |Direct mode | | | |---------+---------------+------------+------------+------------| |\K0 |Enter command |Send break |Buffers |Buffers | | |mode, do not |to remote |cleared and |cleared and | | |send break to |modem |break sent |break sent | | |remote modem. |immediately,|to remote |to DTE. | | | |then enter |modem. | | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |\K1 |Buffers cleared|Send break |Buffers |Buffers | | |and break sent |to remote |cleared and |cleared and | | |to remote |modem |break sent |break sent | | |modem. |immediately.|to remote |to DTE. | | | | |modem. | | |---------+---------------+------------+------------+------------| |\K2 |Enter command |Send break |Send break |Send break | | |mode, do not |to remote |to remote |to DTE | | |send break to |modem |modem |immediately.| | |remote modem. |immediately,|immediately.| | | | |then enter | | | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |\K3 |Send break to |Send break |Send break |Send break | | |remote modem |to remote |to remote |to DTE | | |immediately. |modem |modem |immediately.| | | |immediately.|immediately.| | |---------+---------------+------------+------------+------------| |\K4 |Enter command |Send break |Send break |Break sent | | |mode, do not |to remote |to remote |with | | |send break to |modem |modem with |received | | |remote modem. |immediately,|transmitted |data to the | | | |then enter |data. |DTE. | | | |command | | | | | |mode. | | | |---------+---------------+------------+------------+------------| |>> \K5 |Send break with|Send break |Send break |Break sent | | |transmitted |to remote |to remote |with | | |data. |modem |modem with |received | | | |immediately.|transmitted |data to the | | | | |data. |DTE. | +----------------------------------------------------------------+ +------------------------------------------------------------+ | BTLZ STRING LENGTH | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S58=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S58=32 | |--------------+---------------------------------------------| | Default: | 32 | |--------------+---------------------------------------------| | Range: | 6 - 64 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Selects BTLZ string length. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT %Cn | |--------------+---------------------------------------------| | Example: | AT &J1 %C1 \Q0 | |--------------+---------------------------------------------| | Description: | Selects data compression. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %C0 | Data compression disabled. | |--------------+---------------------------------------------| |>> %C1 | Data compression enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |--------------+---------------------------------------------| | Example: | AT \N1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Sets connect mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \N0 | Normal mode enabled. | |--------------+---------------------------------------------| | \N1 | Direct mode enabled. | |--------------+---------------------------------------------| | \N2 | MNP reliable mode enabled. | |--------------+---------------------------------------------| |>> \N3 | LAP-M, MNP, or Normal mode enabled. | |--------------+---------------------------------------------| | \N4 | LAP-M mode with fallback to MNP enabled. | |--------------+---------------------------------------------| | \N5 | LAP-M mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIGITAL LINE CURRENT SENSING | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] ~~Ln [cmds] | |--------------+---------------------------------------------| | Example: | AT ~~L1 &W | |--------------+---------------------------------------------| | Description: | Controls the digital line current sensing. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | ~~L0 | Digital line current sensing disable. | |--------------+---------------------------------------------| | ~~L1 | Digital line current sensing enable. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIGITAL LINE OVER-CURRENT SENSING | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] ~~S=n [cmds] | |--------------+---------------------------------------------| | Example: | AT ~~S= 4 | |--------------+---------------------------------------------| | Default: | 4 | |--------------+---------------------------------------------| | Range: | 0 - 9 | |--------------+---------------------------------------------| | Unit: | 1 ms | |--------------+---------------------------------------------| | Description: | Sets the over-current sense time condition. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY LINE OVER-CURRENT SENSE TIME | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] ~~S? [cmds] | |--------------+---------------------------------------------| | Example: | AT ~~S? &W | |--------------+---------------------------------------------| | Description: | Displays current over-current sense time in | | | milliseconds. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DTE RATE STATUS | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S62=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S62=16 | |--------------+---------------------------------------------| | Description: | Selects DTE rate. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | 0 | 300 bps. | |--------------+---------------------------------------------| | 1 | 600 bps. | |--------------+---------------------------------------------| | 2 | 1200 bps. | |--------------+---------------------------------------------| | 3 | 2400 bps. | |--------------+---------------------------------------------| | 4 | 4800 bps. | |--------------+---------------------------------------------| | 5 | 7200 bps. | |--------------+---------------------------------------------| | 6 | 9600 bps. | |--------------+---------------------------------------------| | 7 | 12Kbps. | |--------------+---------------------------------------------| | 8 | 14.4Kbps. | |--------------+---------------------------------------------| | 9 | 16.8Kbps. | |--------------+---------------------------------------------| | 10 | 19.2Kbps. | |--------------+---------------------------------------------| | 11 | 21.6Kbps. | |--------------+---------------------------------------------| | 12 | 24Kbps. | |--------------+---------------------------------------------| | 13 | 26.4Kbps. | |--------------+---------------------------------------------| | 14 | 28.8Kbps. | |--------------+---------------------------------------------| | 15 | 38.4Kbps. | |--------------+---------------------------------------------| |>> 16 | 57.6Kbps. | |--------------+---------------------------------------------| | 17 | 115.2Kbps. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FAX/DATA MODE | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S50=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S50=0 &W | |--------------+---------------------------------------------| | Description: | Choose data or FAX mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> 0 | Data mode enabled. | |--------------+---------------------------------------------| | 1 | FAX mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Gn [cmds] | |--------------+---------------------------------------------| | Example: | AT G1 &K3 | |--------------+---------------------------------------------| | Description: | Selects modem port flow control. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \G0 | Flow control disabled. | |--------------+---------------------------------------------| | \G1 | Flow control to XON/XOFF flow enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Kn [cmds] | |--------------+---------------------------------------------| | Example: | AT &G1 &K3 | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | &K0 | Flow control disabled. | |--------------+---------------------------------------------| | &K1 | Not used. | |--------------+---------------------------------------------| | &K2 | Not used. | |--------------+---------------------------------------------| |>> &K3 | CTS/RTS flow control enabled. | |--------------+---------------------------------------------| | &K4 | XON/XOFF pass-through flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Qn [cmds] | |--------------+---------------------------------------------| | Example: | AT \Q0 A | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \Q0 | Flow control disabled. | |--------------+---------------------------------------------| | \Q1 | XON/XOFF flow control enabled. | |--------------+---------------------------------------------| | \Q2 | CTS flow control to DTE enabled. | |--------------+---------------------------------------------| |>> \Q3 | RTS/CTS flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S52=n [cmds] | |--------------+---------------------------------------------| | Example: | AT &G1 S52=3 | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S52=0 | Flow control disabled. | |--------------+---------------------------------------------| | S52=1 | Not used. | |--------------+---------------------------------------------| | S52=2 | Not used. | |--------------+---------------------------------------------| |>> S52=3 | CTS/RTS flow control enabled. | |--------------+---------------------------------------------| | S52=4 | XON/XOFF pass-through flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FORCED SLEEP TIMER | |------------------------------------------------------------| | Format | AT [cmds] S47=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S47=100 | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | 0 - 255 | |--------------+---------------------------------------------| | Unit: | 100 ms | |--------------+---------------------------------------------| | Description: | Specifies duration of DTE and DCE | | | inactivity allowed prior to initiating | | | sleep mode; This is used as a forced | | | powerdown mode for PCMCIA. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] \Tn [cmds] | |--------------+---------------------------------------------| | Example: | AT \T20 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 90 | |--------------+---------------------------------------------| | Unit: | 1 minute | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem does | | | not receive information before it | | | disconnects. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER VALUE | |------------------------------------------------------------| | Format | AT [cmds] S30=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S30=0 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0 - 90 | |--------------+---------------------------------------------| | Unit: | Minutes. | |--------------+---------------------------------------------| | Description: | Inactivity timer value. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCAL SERIAL PORT SPEED | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S72=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S72=16 *OS0 *SC1 | |--------------+---------------------------------------------| | Description: | Sets serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S72=0 | Sets speed automatically. | |--------------+---------------------------------------------| | S72=1 | Sets 300bps speed. | |--------------+---------------------------------------------| | S72=2 | Sets 600bps speed. | |--------------+---------------------------------------------| | S72=3 | Sets 1200bps speed. | |--------------+---------------------------------------------| | S72=4 | Sets 2400bps speed. | |--------------+---------------------------------------------| | S72=5 | Sets 4800bps speed. | |--------------+---------------------------------------------| | S72=6 | Sets 7200bps speed. | |--------------+---------------------------------------------| | S72=7 | Sets 9600bps speed. | |--------------+---------------------------------------------| | S72=8 | Sets 12Kbps speed. | |--------------+---------------------------------------------| | S72=9 | Sets 14.4Kbps speed. | |--------------+---------------------------------------------| | S72=10 | Sets 16.8Kbps speed. | |--------------+---------------------------------------------| | S72=11 | Sets 19.2Kbps speed. | |--------------+---------------------------------------------| | S72=12 | Sets 21.6Kbps speed. | |--------------+---------------------------------------------| | S72=13 | Sets 24Kbps speed. | |--------------+---------------------------------------------| | S72=14 | Sets 26.4Kbps speed. | |--------------+---------------------------------------------| | S72=15 | Sets 28.8Kbps speed. | |--------------+---------------------------------------------| | S72=16 | Sets 38.4Kbps speed. | |--------------+---------------------------------------------| | S72=17 | Sets 57.6Kbps speed. | |--------------+---------------------------------------------| | S72=18 | Sets 115.2Kbps speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCK SERIAL PORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Jn [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 %B14 \J0 | |--------------+---------------------------------------------| | Description: | Sets operation of serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \J0 | Serial speed locked. | |--------------+---------------------------------------------| | \J1 | Serial speed follows connect speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MAXIMUM BLOCK SIZE FOR TRANSMISSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \An [cmds] | |--------------+---------------------------------------------| | Example: | AT \A3 %C1 | |--------------+---------------------------------------------| | Description: | Sets the maximum transmittable block size. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \A0 | Maximum MNP block size is 64 characters. | |--------------+---------------------------------------------| | \A1 | Maximum MNP block size is 128 characters. | |--------------+---------------------------------------------| | \A2 | Maximum MNP block size is 192 characters. | |--------------+---------------------------------------------| |>> \A3 | Maximum MNP block size is 256 characters. | |--------------+---------------------------------------------| | \A4 | Maximum MNP block size is 32 characters. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP OPTIONS | |------------------------------------------------------------| | Format | AT [cmds] S59=n [cmds] | |---------------+--------------------------------------------| | Example: | AT S59=0 | |---------------+--------------------------------------------| | Default: | 1 | |---------------+--------------------------------------------| | Range: | 0 - 1 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Selects MNP5 status. | |------------------------------------------------------------| | Bit | Value | Function | |---------+-------+------------------------------------------| | 0 | 0 >> 1 | Data compression disabled. | | | | | | | | Data compression enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MODEM OPERATING MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S53=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S53=3 | |--------------+---------------------------------------------| | Description: | Sets connect mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S53=0 | Normal mode enabled. | |--------------+---------------------------------------------| | S53=1 | Direct mode enabled. | |--------------+---------------------------------------------| | S53=2 | MNP reliable mode enabled. | |--------------+---------------------------------------------| |>> S53=3 | LAP-M, MNP, or Normal mode enabled. | |--------------+---------------------------------------------| | S53=4 | LAP-M mode with fallback to MNP enabled. | |--------------+---------------------------------------------| | S53=5 | LAP-M mode enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROTOCOL/SPEED | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S37n [cmds] | |--------------+---------------------------------------------| | Example: | AT S37=0 | |--------------+---------------------------------------------| | Description: | Selects the current DCE speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S37=0 | Select last ATspeed. | |--------------+---------------------------------------------| | S37=3 | Select 300bps speed. | |--------------+---------------------------------------------| | S37=5 | Select 1200bps speed. | |--------------+---------------------------------------------| | S37=6 | Select 2400bps speed. | |--------------+---------------------------------------------| | S37=7 | Select 4800bps speed. | |--------------+---------------------------------------------| | S37=8 | Select 7200bps speed. | |--------------+---------------------------------------------| | S37=9 | Select 9600bps speed. | |--------------+---------------------------------------------| | S37=10 | Select 12Kbps speed. | |--------------+---------------------------------------------| | S37=11 | Select 14.4Kbps speed. | |--------------+---------------------------------------------| | S37=12 | Select 16.8Kbps speed. | |--------------+---------------------------------------------| | S37=13 | Select 19.2Kbps speed. | |--------------+---------------------------------------------| | S37=14 | Select 21.6Kbps speed. | |--------------+---------------------------------------------| | S37=15 | Select 24Kbps speed. | |--------------+---------------------------------------------| | S37=16 | Select 26.4Kbps speed. | |--------------+---------------------------------------------| | S37=17 | Select 28.8Kbps speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | PROTOCOL RESULT CODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Vn [cmds] | |--------------+---------------------------------------------| | Example: | AT \V0 Q0 | |--------------+---------------------------------------------| | Description: | \V responds when conjunction with W0 and W2 | | | commands. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \V1 | Protocol result code disabled. | |--------------+---------------------------------------------| |>> \V0 | Protocol result code enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ROOT FIRMWARE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -V [cmds] | |--------------+---------------------------------------------| | Example: | AT -V &W | |--------------+---------------------------------------------| | Description: | Displays base firmware version information. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ROUND TRIP DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S65=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S65=1 | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | Unidentified | |--------------+---------------------------------------------| | Unit: | 100 ms | |--------------+---------------------------------------------| | Description: | Sets the round trip delay. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODES | |------------------------------------------------------------| | Format | AT [cmds] S16=n [cmds] | |---------------+--------------------------------------------| | Example: | ATS16=40 | |---------------+--------------------------------------------| | Default: | 0 | |---------------+--------------------------------------------| | Range: | 0-127 | |---------------+--------------------------------------------| | 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 with self-test | | | | not in progress. | | | | | | | | Remote digital loopback with self-test | | | | in progress. | |---------+-------+------------------------------------------| | 6 |>> 0 1 | Local analog loopback with self-test not | | | | in progress. | | | | | | | | Local analog loopback with self-test in | | | | progress. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.32 AUTO-RETRAIN | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Bn [cmds] | |--------------+---------------------------------------------| | Example: | AT &B1 &W | |--------------+---------------------------------------------| | Description: | Selects action the modem will take during | | | bad line quality on V.32/32bis connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %B0 | Auto-retrain disabled, hang up. | |--------------+---------------------------------------------| | %B1 | Auto-retrain on line quality problem | | | enabled; Hang-up after S7 threshold | | | exceeded. | |--------------+---------------------------------------------| | %B2 | Modem ignores line quality problems. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.32 RETRAIN | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S42=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S42=1 | |--------------+---------------------------------------------| | Default: | 1 | |--------------+---------------------------------------------| | Range: | 0 - 2 | |--------------+---------------------------------------------| | Unit: | Bit-mapped | |--------------+---------------------------------------------| | Description: | Selects action the modem will take during | | | bad line quality on V.32/32bis connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S42=0 | Auto-retrain disabled, hang up. | |--------------+---------------------------------------------| |>> S42=1 | Auto-retrain on line quality problem | | | enabled. | |--------------+---------------------------------------------| | S42=2 | Modem ignores line quality problems. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42 DETECTION PHASE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -Jn [cmds] | |--------------+---------------------------------------------| | Example: | AT -J1 &W | |--------------+---------------------------------------------| | Description: | Controls V.42 detection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | -J0 | V.42 detection disabled. | |--------------+---------------------------------------------| |>> -J1 | V.42 detection enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis COMPRESSION CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] "Hn [cmds] | |--------------+---------------------------------------------| | Example: | AT "H3 &W | |--------------+---------------------------------------------| | Description: | Controls V.42bis data compression | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | "H0 | V.42bis disabled. | |--------------+---------------------------------------------| | "H1 | V.42bis when transmitting enabled. | |--------------+---------------------------------------------| | "H2 | V.42bis when receiving enabled. | |--------------+---------------------------------------------| |>> "H3 | V.42bis when transmitting/receiving | | | enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis DICTIONARY SIZE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] "Nn [cmds] | |--------------+---------------------------------------------| | Example: | AT "N2 &W | |--------------+---------------------------------------------| | Description: | Controls V.42 dictionary size. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | "N0 | 512 bytes. | |--------------+---------------------------------------------| | "N1 | 1024 bytes. | |--------------+---------------------------------------------| |>> "N2 | 1536 bytes. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis DICTIONARY SIZE | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S57=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S57=2 | |--------------+---------------------------------------------| | Description: | Selects V.42bis dictionary size. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S57=0 | 512 bytes. | |--------------+---------------------------------------------| | S57=1 | 1024 bytes. | |--------------+---------------------------------------------| |>> S57=2 | 1536 bytes. | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.42bis MAXIMUM STRING LENGTH | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] "O=n [cmds] | |--------------+---------------------------------------------| | Example: | AT "O=32 | |--------------+---------------------------------------------| | Default: | 32 | |--------------+---------------------------------------------| | Range: | 6 - 64 | |--------------+---------------------------------------------| | Unit: | Unidentified | |--------------+---------------------------------------------| | Description: | Selects string size for V.42bis | | | compression. | +------------------------------------------------------------+ +------------------------------------------------------------+ | XON/XOFF PASS-THROUGH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Xn [cmds] | |--------------+---------------------------------------------| | Example: | AT \X7 O | |--------------+---------------------------------------------| | Description: | Selects whether XON/XOFF signals are sent | | | to remote modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \X0 | XON/XOFF signals trapped by local modem. | |--------------+---------------------------------------------| | \X1 | XON/XOFF passed through local modem. |