ACER AMERICA CORPORATION ======================== MODEM 2424 Modem Type Data (synchronous/asynchronous) Maximum Data Rate 2400bps Data Bus External Data Modulation Protocol Bell 103A/212A, 201 ITU-T V.22, V.22bis Error Correction/Compression MNP4 +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |-----------------+----------+--------------------+----------| | Line out | CN1 | DC power | CN4 | |-----------------+----------+--------------------+----------| | Line in | CN2 | Power switch | SW6 | |-----------------+----------+--------------------+----------| | RS-232C | CN3 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | OFF HOOK | |------------------------------------------------------------| | Status | SW4 | |-------------------------------+----------------------------| |>> Talk mode | Off | |-------------------------------+----------------------------| | Data mode | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | ANSWER MODE | |------------------------------------------------------------| | Status | SW3 | |-------------------------------+----------------------------| |>> Originate | Off | |-------------------------------+----------------------------| | Answer | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | MODEM SPEED | |------------------------------------------------------------| | Speed | SW2 | |-------------------------------+----------------------------| |>> 2400bps | Off | |-------------------------------+----------------------------| | 1200bps | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO TEST | |------------------------------------------------------------| | Status | SW1 | |-------------------------------+----------------------------| |>> Disabled | Off | |-------------------------------+----------------------------| | Enabled | On | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMMAND SET DISABLE | |------------------------------------------------------------| | Status | SW5/1 | |-------------------------------+----------------------------| | AT command set disabled | On | |-------------------------------+----------------------------| | AT command set enabled | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE TYPE | |------------------------------------------------------------| | Status | SW5/2 | |-------------------------------+----------------------------| | Force leased line | On | |-------------------------------+----------------------------| | Normal operation | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | ERROR CORRECTION | |------------------------------------------------------------| | Status | SW5/3 | |-------------------------------+----------------------------| | Disabled | On | |-------------------------------+----------------------------| | Enabled | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | ECHO AND RESULT CODE | |------------------------------------------------------------| | Status | SW5/4 | |-------------------------------+----------------------------| | Disabled | On | |-------------------------------+----------------------------| | Normal operation | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO ANSWER | |------------------------------------------------------------| | Status | SW5/5 | |-------------------------------+----------------------------| | Set to one ring | On | |-------------------------------+----------------------------| | Normal operation | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | SYNCHRONOUS TRANSMIT CLOCK SOURCE | |------------------------------------------------------------| | Status | SW5/6 | |-------------------------------+----------------------------| | DTE generates clock | On | |-------------------------------+----------------------------| | Normal operation | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | SYNCRONOUS DATA MODE | |------------------------------------------------------------| | Status | SW5/7 | |-------------------------------+----------------------------| | Enabled | On | |-------------------------------+----------------------------| | Normal operation | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | DSR AND CTS | |------------------------------------------------------------| | Status | SW5/8 | |-------------------------------+----------------------------| | Force high | On | |-------------------------------+----------------------------| | Normal operation | Off | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Status | Condition | |------+-----------+-----------------------------------------| | EF | On | Error correction enabled | |------+-----------+-----------------------------------------| | EF | Off | Error correction disabled | |------+-----------+-----------------------------------------| | HS | On | Modem is operating at 2400bps | |------+-----------+-----------------------------------------| | HS | Off | Modem is operating at 1200bps or 300bps | |------+-----------+-----------------------------------------| | AA | On | Auto answer enabled | |------+-----------+-----------------------------------------| | AA | Off | Auto answer disabled | |------+-----------+-----------------------------------------| | CD | On | Carrier signal detected | |------+-----------+-----------------------------------------| | CD | Off | Carrier signal not detected | |------+-----------+-----------------------------------------| | OH | On | Modem is off-hook | |------+-----------+-----------------------------------------| | OH | Off | Modem is on-hook | |------+-----------+-----------------------------------------| | RD | On | Modem is receiving data | |------+-----------+-----------------------------------------| | RD | Off | Modem is not receiving data | |------+-----------+-----------------------------------------| | SD | On | Modem is transmitting data | |------+-----------+-----------------------------------------| | SD | Off | Modem is not transmitting data | |------+-----------+-----------------------------------------| | TR | On | DTR signal is high | |------+-----------+-----------------------------------------| | TR | Off | DTR signal is low | |------+-----------+-----------------------------------------| | MR | On | Power on | |------+-----------+-----------------------------------------| | MR | Off | Power off | |------+-----------+-----------------------------------------| | MR | Blinking | Modem is performing self-test | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | ACCEPT RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \Un | |--------------+---------------------------------------------| | Example: | AT \U | |--------------+---------------------------------------------| | Description: | Accepts remote modem's request for reliable | | | link. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE FALLBACK CHARACTER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S20=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS20=20 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-127 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used as the | | | auto-reliable fallback character. S20=0 | | | will disable this function. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RETRAIN | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT %En | |--------------+---------------------------------------------| | Example: | AT %E1 | |--------------+---------------------------------------------| | Description: | Selects auto-retrain mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> %E0 | Auto-retrain disabled. | |--------------+---------------------------------------------| | %E1 | Auto-retrain enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT MAPPED REGISTER S14 | |------------------------------------------------------------| | Format | AT [cmds] S14=n [cmds] | |---------------+--------------------------------------------| | Example: | ATS14=40 | |---------------+--------------------------------------------| | Default: | 170 | |---------------+--------------------------------------------| | Range: | 0 - 253 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Controls CTS signal, command echo, result | | | codes, command set, dialing mode, and | | | answer/originate mode. | |------------------------------------------------------------| | Bit | Value | Function | |---------+---------+----------------------------------------| | 0 |>> 0 1 | CTS normal. | | | | | | | | CTS forced high. | |---------+---------+----------------------------------------| | 1 | 0 >> 1 | Command echo disabled. | | | | | | | | Command echo enabled. | |---------+---------+----------------------------------------| | 2 |>> 0 1 | Result codes enabled. | | | | | | | | Result codes disabled. | |---------+---------+----------------------------------------| | 3 | 0 >> 1 | Display numeric result codes. | | | | | | | | Display verbose result codes. | |---------+---------+----------------------------------------| | 4 |>> 0 1 | AT command set enabled. | | | | | | | | AT command set disabled | |---------+---------+----------------------------------------| | 5 | 0 >> 1 | Tone dialing enabled. | | | | | | | | Pulse dialing 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: | ATS21=4 | |----------------+-------------------------------------------| | Default: | 32 | |----------------+-------------------------------------------| | Range: | 0 - 253 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Selects jack type, CTS signal, low DTR | | | action, DCD signal, DSR signal, and the | | | Long Space Disconnect function. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 |>> 0 1 | Selects RJ-11, RJ-41S, or RJ45S jack. | | | | | | | | Selects RJ-12 or RJ-13 jack. | |----------+-------+-----------------------------------------| | 1 | 0 | Not used. | |----------+-------+-----------------------------------------| | 2 | 0 >> 1 | CTS follows RTS. | | | | | | | | CTS forced high. | |----------+-------+-----------------------------------------| | 4, 3 |>> 00 | DTR signal ignored. | | | 01 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 | Not used. | |----------+-------+-----------------------------------------| | 7 |>> 0 1 | Long Space Disconnect function | | | | disabled. | | | | | | | | Long Space Disconnect function enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S22 | |------------------------------------------------------------| | Format | AT [cmds] S22=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS22=117 | |----------------+-------------------------------------------| | Default: | 117 | |----------------+-------------------------------------------| | Range: | 0-127 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Controls speaker volume and controls, and | | | limits results codes. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 1, 0 | 00 >> | Off volume. | | | 01 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 | 39/61ms at 10pps (North America) | | | | | | | | 33/67ms at 10pps (Europe) | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S23 | |------------------------------------------------------------| | Format | AT [cmds] S23=n [cmds] | |------------------+-----------------------------------------| | Example: | ATS23=177 | |------------------+-----------------------------------------| | Default: | 5 | |------------------+-----------------------------------------| | Range: | 0-255 | |------------------+-----------------------------------------| | Unit: | Bit-mapped | |------------------+-----------------------------------------| | Description: | Grants/denies remote digital loopback, | | | controls DTE rate and parity, and sets | | | guard tone. | |------------------------------------------------------------| | Bit | Value | Function | |------------+--------+--------------------------------------| | 0 | 0 >> 1 | Remote digital loopback denied. | | | | | | | | Remote digital loopback allowed. | |------------+--------+--------------------------------------| | 3, 2, 1 | 000 | Sets serial port speed to 0-300bps. | | | 001 >> | | | | 010 | Sets serial port speed to 600bps. | | | 011 | | | | 100 | Sets serial port speed to 1200bps. | | | 101 | | | | 110 | Sets serial port speed to 2400bps. | | | | | | | | Sets serial port speed to 4800bps. | | | | | | | | Sets serial port speed to 9600bps. | | | | | | | | Sets serial port speed to 19200bps. | |------------+--------+--------------------------------------| | 5,4 |>> 00 | Even parity. | | | 01 10 | | | | 11 | Space parity. | | | | | | | | Odd parity. | | | | | | | | Mark or no parity. | |------------+--------+--------------------------------------| | 7, 6 |>> 00 | Guard tone disabled. | | | 01 10 | | | | | Guard tone disabled. | | | | | | | | Guard tone 1800Hz enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27=n [cmds] | |----------------+-------------------------------------------| | Example: | ATS27=192 | |----------------+-------------------------------------------| | Default: | 9 | |----------------+-------------------------------------------| | Range: | 0 - 127 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Selects sync/async mode, line type, clock | | | source, and ITU-T/Bell modes. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 1, 0 | 00 01 | Asynchronous command and data modes. | | |>> 10 | | | | 11 | Asynchronous command, synchronous | | | | connect mode. | | | | | | | | DTR dialing enabled, synchronous | | | | connect mode. | | | | | | | | Manual dialing only, synchronous | | | | connect mode. | |----------+-------+-----------------------------------------| | 2 |>> 0 1 | Switched line. | | | | | | | | Leased line. | |----------+-------+-----------------------------------------| | 3 | 0 | Not used. | |----------+-------+-----------------------------------------| | 5, 4 |>> 00 | Internal DTE transmit clock source. | | | 01 10 | | | | | External DTE transmit clock source. | | | | | | | | Slave DTE transmit clock source. | |----------+-------+-----------------------------------------| | 6 |>> 0 1 | ITU-T mode enabled. | | | | | | | | Bell mode disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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. | +----------------------------------------------------------------+ +------------------------------------------------------------+ | CHANGE FUNCTION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Z | |--------------+---------------------------------------------| | Example: | AT %Z DP(303)443-3388 | |--------------+---------------------------------------------| | Description: | Changes the function of SW1 to execute the | | | commands given as a parameter. If no | | | commands are given, it restores default | | | setting of self-test. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |--------------+---------------------------------------------| | Example: | AT \N1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Sets connect mode. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \N0 | Normal mode. | |--------------+---------------------------------------------| |>> \N1 | Direct mode. | |--------------+---------------------------------------------| | \N2 | Reliable mode. | |--------------+---------------------------------------------| | \N3 | Auto-reliable mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED UPPER LIMIT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Bn [cmds] | |--------------+---------------------------------------------| | Example: | AT %L3 %B14 \J0 | |--------------+---------------------------------------------| | Description: | Sets fastest allowed connection speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %B300 | Select 300bps maximum speed. | |--------------+---------------------------------------------| | %B600 | Select 600bps maximum speed. | |--------------+---------------------------------------------| | %B1200 | Select 1200bps maximum speed. | |--------------+---------------------------------------------| |>> %B2400 | Select 2400bps maximum speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONVERT TO RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \Y [cmds] | |--------------+---------------------------------------------| | Example: | AT \Y | |--------------+---------------------------------------------| | Description: | Initiates reliable mode link. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CTS SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Dn [cmds] | |--------------+---------------------------------------------| | Example: | AT \D0 | |--------------+---------------------------------------------| | Description: | Controls action of Clear To Send signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \D0 | CTS forced high. | |--------------+---------------------------------------------| | \D1 | CTS normal. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] D[phone# & modifiers] [;cmds] | |--------------+---------------------------------------------| | Example: | AT H1 DF 9W *70, 1(303) 555-1212 | |--------------+---------------------------------------------| | Description: | Dials telephone number according to any | | | modifiers included in the string. | |--------------+---------------------------------------------| | Note: | Any combination of modifiers can be used to | | | produce the desired dial functions in | | | sequence. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | DF | Fast pulse dial, sends 20 pulses per | | | second. | |--------------+---------------------------------------------| | DX | Dial second stored telephone number | |--------------+---------------------------------------------| | D\n | Auto redial n times | |--------------+---------------------------------------------| | DM | Set AT\N3, AT\V1, AT\Q1, AT\J0 until modem | | | returns to on-hook. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISPLAY STORED PHONE NUMBERS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \F [cmds] | |--------------+---------------------------------------------| | Example: | AT &Z2=9W1-303-555-1212 \F | |--------------+---------------------------------------------| | Description: | Displays all stored phone numbers. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ECHO DATA | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \En [cmds] | |--------------+---------------------------------------------| | Example: | AT \E0 | |--------------+---------------------------------------------| | Description: | Displays data sent from DTR to modem | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \E0 | Disabled | |--------------+---------------------------------------------| | \E1 | Enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXTENDED RESULT CODES | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Vn [cmds] | |--------------+---------------------------------------------| | Example: | AT \V1 %C1 | |--------------+---------------------------------------------| | Description: | Selects MNP result codes. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \V0 | MNP result codes disabled. | |--------------+---------------------------------------------| | \V1 | MNP result codes enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Qn [cmds] | |--------------+---------------------------------------------| | Example: | AT \Q5 | |--------------+---------------------------------------------| | Description: | Sets type of flow control used by modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \Q0 | Flow control disabled. | |--------------+---------------------------------------------| |>> \Q1 | Bidirectional XON/XOFF flow control | | | enabled. | |--------------+---------------------------------------------| | \Q2 | CTS flow control by DCE enabled. | |--------------+---------------------------------------------| | \Q3 | Bidirectional CTS/RTS flow control enabled. | |--------------+---------------------------------------------| | \Q4 | Flow control by DCE disabled. | |--------------+---------------------------------------------| |>> \Q5 | XON/XOFF flow control by DCE enabled. | |--------------+---------------------------------------------| | \Q6 | RTS flow control by DCE enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | HELP SCREENS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] ?n [cmds] | |--------------+---------------------------------------------| | Example: | AT ?1 | |--------------+---------------------------------------------| | Description: | Displays help menus. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> ?1 | Displays standard AT command set | |--------------+---------------------------------------------| | ?2 | Displays proprietary & command set | |--------------+---------------------------------------------| | ?3 | Displays dial modifier commands | |--------------+---------------------------------------------| | ?4 | Displays S register contents. | |--------------+---------------------------------------------| | ?5 | Displays proprietary \ command set | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S24=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS24=20 | |--------------+---------------------------------------------| | 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 | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] \Tn [cmds] | |--------------+---------------------------------------------| | Example: | AT\T20 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem does | | | not receive information before it | | | disconnects. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERFACE PROTOCOL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \In [cmds] | |--------------+---------------------------------------------| | Example: | AT \I0 | |--------------+---------------------------------------------| | Description: | Controls data exchange between applications | | | and modem. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \I0 | Disabled. | |--------------+---------------------------------------------| | \I1 | Enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Gn [cmds] | |--------------+---------------------------------------------| | Example: | AT G1 &M0 | |--------------+---------------------------------------------| | Description: | Selects modem port flow control. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \G0 | Flow control disabled. | |--------------+---------------------------------------------| | \G1 | Flow control enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | MNP block size is 64 characters. | |--------------+---------------------------------------------| | \A1 | MNP block size is 128 characters. | |--------------+---------------------------------------------| | \A2 | MNP block size is 192 characters. | |--------------+---------------------------------------------| | \A3 | MNP block size is 256 characters. | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP STREAM/BLOCK MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Ln [cmds] | |--------------+---------------------------------------------| | Example: | AT \L1 DT555-1212 | |--------------+---------------------------------------------| | Description: | Selects the transfer mode for MNP. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \L0 | Stream mode for MNP enabled. | |--------------+---------------------------------------------| | \L1 | Block mode after four second delayfor MNP | | | enabled. | |--------------+---------------------------------------------| | \L2 | Block mode for MNP enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | ON-LINE IN RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \On | |--------------+---------------------------------------------| | Example: | AT \O | |--------------+---------------------------------------------| | Description: | Returns to on-line and requests reliable | | | mode connection. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT CONFIGURATION PROFILES | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \Sn [cmds] | |--------------+---------------------------------------------| | Example: | AT \S0 | |--------------+---------------------------------------------| | Description: | Reports active configuration profiles. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT CONFIGURATION SWITCH SETTINGS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %S [cmds] | |--------------+---------------------------------------------| | Example: | AT %S | |--------------+---------------------------------------------| | Description: | Displays SW5 settings | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT NORMAL/TEST STATUS | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %F [cmds] | |--------------+---------------------------------------------| | Example: | AT %F | |--------------+---------------------------------------------| | Description: | Displays current setting of SW1 | | | (Normal/Test) | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT PRODUCT VERSION | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %V [cmds] | |--------------+---------------------------------------------| | Example: | AT I3 &V1 %V | |--------------+---------------------------------------------| | Description: | Reports product version. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RETURN TO RELIABLE MODE | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] \Z [cmds] | |--------------+---------------------------------------------| | Example: | AT \Z | |--------------+---------------------------------------------| | Description: | Ends reliable mode link, initiate return to | | | normal mode. | +------------------------------------------------------------+ +------------------------------------------------------------+ | RI SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Rn [cmds] | |--------------+---------------------------------------------| | Example: | AT \R0 Q0 | |--------------+---------------------------------------------| | Description: | Controls the behavior of the Ring Indicator | | | signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \R0 | RI signal high during rings, and forced | | | high for duration of call. | |--------------+---------------------------------------------| |>> \R1 | RI signal high during rings only. | +------------------------------------------------------------+ +------------------------------------------------------------+ | STORE SECOND PHONE NUMBER IN NVRAM | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Pn [dialstring] | |--------------+---------------------------------------------| | Example: | AT\P | |--------------+---------------------------------------------| | Description: | Stores a second phone number in the modem's | | | memory. | +------------------------------------------------------------+ +------------------------------------------------------------+ | REDIAL DELAY | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S19=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S19=60 | |--------------+---------------------------------------------| | Default: | 45 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Configures how long the modem will wait to | | | redial a number after a dial attempt has | | | failed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODES | |------------------------------------------------------------| | Format | AT [cmds] S16=n [cmds] | |---------------+--------------------------------------------| | Example: | ATS16=40 | |---------------+--------------------------------------------| | Default: | 0 | |---------------+--------------------------------------------| | Range: | 0-125 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Controls loopback tests, analog, digital, | | | remote digital, and self tests. | |------------------------------------------------------------| | Bit | Value | Function | |---------+-------+------------------------------------------| | 0 | 0 | Local analog loopback not in progress. | | | | | | | 1 | Local analog loopback in progress. | |---------+-------+------------------------------------------| | 1 | 0 | Not used. | |---------+-------+------------------------------------------| | 2 | 0 | Local digital loopback not in progress. | | | | | | | 1 | Local digital loopback in progress. | |---------+-------+------------------------------------------| | 3 | 0 | Remote digital loopback not in progress. | | | | | | | 1 | Remote digital loopback in progress. | |---------+-------+------------------------------------------| | 4 | 0 | Remote digital loopback not requested. | | | | | | | 1 | Remote digital loopback requested. | |---------+-------+------------------------------------------| | 5 | 0 | Remote digital loopback with self-test | | | | not in progress. | | | 1 | | | | | Remote digital loopback with self-test | | | | in progress. | |---------+-------+------------------------------------------| | 6 | 0 | Local analog loopback with self-test not | | | | in progress. | | | 1 | | | | | Local analog loopback with self-test in | | | | progress. | +------------------------------------------------------------+ +------------------------------------------------------------+ | XON/XOFF PASS-THROUGH | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Xn [cmds] | |--------------+---------------------------------------------| | Example: | AT \X0 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. | +------------------------------------------------------------+