COMPUTER PERIPHERALS, INC. ========================== VIVA 28.8 EXTERNAL DATA/FAX Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus External Fax Class Class I Data Modulation Bell 103A/212A Protocol ITU-T V.22, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29 Protocol Error MNP5, MNP10, V.42, V.42bis Correction/Compression +------------------------------------------------------------+ | CONNECTIONS | |------------------------------------------------------------| | Purpose | Location | Purpose | Location | |------------------+----------+-------------------+----------| | Line out | CN1 | DC power | CN4 | |------------------+----------+-------------------+----------| | Line in | CN2 | Power switch | SW1 | |------------------+----------+-------------------+----------| | RS-232/422 | CN3 | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Color | Status | Condition | |-----+-------+----------+-----------------------------------| | HS | Red | On | Modem is operating at 2400bps | |-----+-------+----------+-----------------------------------| | HS | Red | Off | Modem is operating at slower than | | | | | 2400bps | |-----+-------+----------+-----------------------------------| | AA | Red | On | Auto-answer enabled | |-----+-------+----------+-----------------------------------| | AA | Red | Off | Auto-answer disabled | |-----+-------+----------+-----------------------------------| | AA | Red | Blinking | Phone is ringing | |-----+-------+----------+-----------------------------------| | CD | Red | On | Carrier signal detected | |-----+-------+----------+-----------------------------------| | CD | Red | Off | Carrier signal not detected | |-----+-------+----------+-----------------------------------| | OH | Red | On | Modem is off-hook | |-----+-------+----------+-----------------------------------| | OH | Red | Off | Modem is on-hook | |-----+-------+----------+-----------------------------------| | RD | Red | On | Modem is receiving data | |-----+-------+----------+-----------------------------------| | RD | Red | Off | Modem is not receiving data | |-----+-------+----------+-----------------------------------| | SD | Red | On | Modem is transmitting data | |-----+-------+----------+-----------------------------------| | SD | Red | Off | Modem is not transmitting data | |-----+-------+----------+-----------------------------------| | TR | Red | On | DTR signal is high | |-----+-------+----------+-----------------------------------| | TR | Red | Off | DTR signal is low | |-----+-------+----------+-----------------------------------| | MR | Red | On | Power is on | |-----+-------+----------+-----------------------------------| | MR | Red | Off | Power is off | |------------------------------------------------------------| | Note: The LEDs are Icons | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | AUTO FALL FORWARD/FALLBACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Gn [cmds] | |--------------+---------------------------------------------| | Description: | Selects auto fallback | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> %G0 | Fallback disabled | |--------------+---------------------------------------------| | %G1 | Fallback enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RETRAIN - FALLBACK/FALLFORWARD | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %En [cmds] | |--------------+---------------------------------------------| | Description: | Controls auto-retrain mode and | | | fallback/fall forward | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %E0 | Auto-retrain disabled | |--------------+---------------------------------------------| | %E1 | Auto-retrain enabled | |--------------+---------------------------------------------| | %E2 | Fallback/fall forward enabled | |--------------+---------------------------------------------| | %E3 | Auto-retrain enabled, modem hangs up when | | | line quality deteriorates. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S14 | |------------------------------------------------------------| | Format | AT [cmds] S14? [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays echo, result codes, result code | | | display, dial mode, and answer/originate | | | mode. | |------------------------------------------------------------| | Bit | Value | Function | |----------+--------+----------------------------------------| | 0 | 0 | Not used | |----------+--------+----------------------------------------| | 1 | 0 | Command echo disabled | | | | | | | 1 | Command echo enabled | |----------+--------+----------------------------------------| | 2 | 0 | Result codes enabled | | | | | | | 1 | Result codes disabled | |----------+--------+----------------------------------------| | 3 | 0 | Display result codes in numeric format | | | | | | | 1 | Display result codes in verbose format | |----------+--------+----------------------------------------| | 4 | 0 | Not used | |----------+--------+----------------------------------------| | 5 | 0 | Tone dial enabled | | | | | | | 1 | Pulse dial enabled | |----------+--------+----------------------------------------| | 6 | 0 | Not used | |----------+--------+----------------------------------------| | 7 | 0 | Answer mode enabled | | | | | | | 1 | Originate mode enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S21 | |------------------------------------------------------------| | Format | AT [cmds] S21? [cmds] | |----------------+-------------------------------------------| | Default: | Read-only | |----------------+-------------------------------------------| | Range: | 0-255 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Displays jack type, CTS signal, low DTR | | | action, DCD signal, DSR signal, and the | | | long space disconnect function. | |------------------------------------------------------------| | Bit | Value | Function | |----------+-------+-----------------------------------------| | 0 | 0 | Selects RJ-11, RJ-41S, or RJ45S jack | | | | | | | 1 | Selects RJ-12 or RJ-13 jack | |----------+-------+-----------------------------------------| | 1 | 0 | Not used | |----------+-------+-----------------------------------------| | 2 | 0 | CTS follows RTS | | | | | | | 1 | CTS forced high | |----------+-------+-----------------------------------------| | 4, 3 | 00 | DTR signal ignored | | | | | | | 01 | Modem goes to command mode on low DTR | | | | | | | 10 | Modem disconnects on low DTR. | | | | Auto-Answer is disabled | | | 11 | | | | | Modem is initialized on low DTR | |----------+-------+-----------------------------------------| | 5 | 0 | DCD forced high | | | | | | | 1 | DCD normal | |----------+-------+-----------------------------------------| | 6 | 0 | DSR forced high | | | | | | | 1 | DSR normal | |----------+-------+-----------------------------------------| | 7 | 0 | Long Space Disconnect function disabled | | | | | | | 1 | Long Space Disconnect function enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S22 | |------------------------------------------------------------| | Format | AT [cmds] S22? [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays speaker volume and controls, | | | limits results codes, and make/break | | | pulse ratio. | |------------------------------------------------------------| | Bit | Value | Function | |------------+-------+---------------------------------------| | 1, 0 | 00 | On volume | | | | | | | 01 | Low level volume | | | | | | | 10 | Medium level volume | | | | | | | 11 | High level volume | |------------+-------+---------------------------------------| | 3, 2 | 00 | Speaker off | | | | | | | 01 | Speaker off on carrier | | | | | | | 10 | Speaker always on | | | | | | | 11 | Speaker on during handshake | |------------+-------+---------------------------------------| | 6, 5, 4 | 000 | Basic result codes only enabled | | | | | | | 100 | Basic and connection speed result | | | | codes enabled | | | 101 | | | | | Basic and connection speed result | | | 110 | codes and dialtone detection enabled | | | | | | | 111 | All result codes except dialtone | | | | detection enabled | | | | | | | | All result codes enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S23 | |------------------------------------------------------------| | Format | AT [cmds] S23? [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays remote digital loopback, DTE | | | rate and parity, and guard tone. | |------------------------------------------------------------| | Bit | Value | Function | |------------+-------+---------------------------------------| | 0 | 0 | Remote digital loopback denied | | | | | | | 1 | Remote digital loopback allowed | |------------+-------+---------------------------------------| | 3, 2, 1 | 000 | Sets serial port speed to 0-300bps | | | | | | | 001 | Sets serial port speed to 600bps | | | | | | | 010 | Sets serial port speed to 1200bps | | | | | | | 011 | Sets serial port speed to 2400bps | | | | | | | 100 | Sets serial port speed to 4800bps | | | | | | | 101 | Sets serial port speed to 9600bps | | | | | | | 110 | Sets serial port speed to 19200bps | | | | | | | 111 | Sets serial port speed to 38400bps | |------------+-------+---------------------------------------| | 5,4 | 0 | Not used | |------------+-------+---------------------------------------| | 7, 6 | 00 | Guard tone disabled | | | | | | | 01 | Guard tone 550Hz enabled | | | | | | | 10 | Guard tone 1800Hz enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S27 | |------------------------------------------------------------| | Format | AT [cmds] S27? [cmds] | |------------------+-----------------------------------------| | Default: | Read-only | |------------------+-----------------------------------------| | Range: | 0-255 | |------------------+-----------------------------------------| | Unit: | Bit-mapped | |------------------+-----------------------------------------| | Description: | Displays synchronous/asynchronous mode, | | | Line type, clock source, and ITU-T/Bell | | | modes. | |------------------------------------------------------------| | Bit | Value | Function | |------------+----------+------------------------------------| | 3, 1, 0 | 000 | Asynchronous mode, serial port | | | | speed follows connect speed | | | 001 | | | | | Asynchronous command mode and | | | 010 | synchronous connect mode | | | | | | | 011 | Asynchronous command mode and | | | | synchronous connect mode | | | 100 | | | | | Asynchronous command mode on low | | | | DTR, synchronous connect mode on | | | | high DTR | | | | | | | | Hayes AutoSync(TM) mode | |------------+----------+------------------------------------| | 2 | 0 | Dial up line | | | | | | | 1 | Leased line | |------------+----------+------------------------------------| | 5, 4 | 00 | Internal transmit clock source | | | | | | | 01 | External transmit clock source | | | | | | | 10 | Remote transmit clock source | |------------+----------+------------------------------------| | 6 | 0 | CCITT mode | | | | | | | 1 | Bell mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S28 | |------------------------------------------------------------| | Format | AT [cmds] S28=n [cmds] | |----------------+-------------------------------------------| | Default: | Read-only | |----------------+-------------------------------------------| | Range: | 0-255 | |----------------+-------------------------------------------| | Unit: | Bit-mapped | |----------------+-------------------------------------------| | Description: | Displays V.23 split baud mode, V.23 | | | speed/direction, pulse dialing, and MNP10 | | | link negoiation. | |------------------------------------------------------------| | Bit | Value | Function | |----------+--------+----------------------------------------| | 0 | 0 | V.23 split baud mode disabled | | | | | | | 1 | V.23 split baud mode enabled | |----------+--------+----------------------------------------| | 1 | 0 | Select 75bps transmit, 1200bps receive | | | | | | | 1 | Select 1200bps transmit, 75bps receive | |----------+--------+----------------------------------------| | 2 | 0 | Not used | |----------+--------+----------------------------------------| | 4, 3 | 00 | 39ms make/61ms break at 10pps | | | | | | | 01 | 33ms make/67ms break at 10pps | | | | | | | 10 | 39ms make/61ms break at 20pps | | | | | | | 11 | 33ms make/67ms break at 20pps | |----------+--------+----------------------------------------| | 5 | 0 | Not used | |----------+--------+----------------------------------------| | 7, 6 | 00 | Link will be negotiated at highest | | | | possible speed | | | 01 | | | | | Link will be negotiated at 1200bps | | | 10 | | | | | Link will be negotiated at 4800bps | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S31 | |------------------------------------------------------------| | Format | AT [cmds] S31=n [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays auto-baud function and result | | | codes. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 0 | 0 | Not used | |-----------+-------+----------------------------------------| | 1 | 0 | Auto-baud disabled | | | | | | | 1 | Auto-baud enabled | |-----------+-------+----------------------------------------| | 3, 2 | 00 | DTE speed displayed in result codes | | | | | | | 01 | Extended result codes enabled; DCE | | | | speed displayed in result codes. | | | 10 | | | | | DCE speed displayed in result codes | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S40 | |------------------------------------------------------------| | Format | AT [cmds] S40=n [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays MNP10 services, break control, | | | and MNP block size. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+-------+----------------------------------------| | 1, 0 | 00 | MNP10 disabled | | | | | | | 01 | MNP10 enabled | | | | | | | 10 | MNP10 enabled on originate mode only | |-----------+-------+----------------------------------------| | 0 | 0 | MNP10 disabled | | | | | | | 1 | MNP10 enabled | |-----------+-------+----------------------------------------| | 1 | 0 | MNP10 at 2400 and 1200bps disabled | | | | | | | 1 | MNP10 at 2400 and 1200bps enabled | |-----------+-------+----------------------------------------| | 2 | 0 | Power level adjustment disabled | | | | | | | 1 | Power level adjustment enabled | |-----------+-------+----------------------------------------| | 5 - 3 | 000 | \K0 | | | | | | | 001 | \K1 | | | | | | | 010 | \K2 | | | | | | | 100 | \K3 | | | | | | | 101 | \K4 | | | | | | | 110 | \K5 | |-----------+-------+----------------------------------------| | 7, 6 | 00 | MNP block size is 64 characters | | | | | | | 01 | MNP block size is 128 characters | | | | | | | 10 | MNP block size is 192 characters | | | | | | | 11 | MNP block size is 256 characters | +------------------------------------------------------------+ +------------------------------------------------------------+ | BIT-MAPPED REGISTER S41 | |------------------------------------------------------------| | Format | AT [cmds] S41=n [cmds] | |-----------------+------------------------------------------| | Default: | Read-only | |-----------------+------------------------------------------| | Range: | 0-255 | |-----------------+------------------------------------------| | Unit: | Bit-mapped | |-----------------+------------------------------------------| | Description: | Displays compression, auto-retrain, flow | | | control, stream/block mode and MNP10 | | | fallback. | |------------------------------------------------------------| | Bit | Value | Function | |-----------+---------+--------------------------------------| | 1, 0 | 00 | Data compression disabled | | | | | | | 01 | MNP5 enabled | | | | | | | 10 | V.42bis enabled | | | | | | | 11 | MNP5 and V.42bis enabled | |-----------+---------+--------------------------------------| | 6, 2 | 00 | Auto-retrain disabled | | | | | | | 01 | Auto-retrain enabled | | | | | | | 10 | %E2 | |-----------+---------+--------------------------------------| | 3 | 0 | Flow control disabled | | | | | | | 1 | Flow control enabled | |-----------+---------+--------------------------------------| | 4 | 0 | Stream mode for MNP | | | | | | | 1 | Block mode for MNP | |-----------+---------+--------------------------------------| | 7 | 0 | MNP10 at 2400 and 1200bps disabled | | | | | | | 1 | MNP10 at 2400 and 1200bps enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK SEND | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Bn [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-9 | |--------------+---------------------------------------------| | Unit: | .1 second | |--------------+---------------------------------------------| | Description: | Sends break to modem | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Kn [cmds] | |--------------+---------------------------------------------| | Description: | Configures action of break signal | |------------------------------------------------------------| | Command | Break from | Modem | Break | | | DTE | receives \B | received | | | | | from remote | | | | | modem | |---------------+---------------+--------------+-------------| | \K0 | Online | Break sent | Buffers | | | command mode | to remote | cleared, | | | enabled, send | modem and | break sent | | | no break to | buffered | to DTE | | | remote modem | cleared | | |---------------+---------------+--------------+-------------| | \K1 | Break sent to | Break sent | Buffers | | | remote modem | to remote | cleared, | | | and buffered | modem and | break sent | | | cleared | buffered | to DTE | | | | cleared | | |---------------+---------------+--------------+-------------| | \K2 | Online | Send break | Break sent | | | command mode | to remote | immediately | | | enabled, send | modem | to DTE | | | no break to | immediately | | | | remote modem | | | |---------------+---------------+--------------+-------------| | \K3 | Send break to | Send break | Break sent | | | remote modem | to remote | immediately | | | immediately | modem | to DTE | | | | immediately | | |---------------+---------------+--------------+-------------| | \K4 | Online | Send break | Break sent | | | command mode | with | with | | | enabled, send | transmitted | received | | | no break to | data | data to the | | | remote modem | | DTE | |---------------+---------------+--------------+-------------| |>> \K5 | Send break | Send break | Break sent | | | with | with | with | | | transmitted | transmitted | received | | | data | data | data to the | | | | | DTE | +------------------------------------------------------------+ +------------------------------------------------------------+ | CELLULAR TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S201=n [cmds] | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | 0-15 | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Controls cellular transmission level | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] %Cn [cmds] | |--------------+---------------------------------------------| | Description: | Selects data compression | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %C0 | Data compression disabled | |--------------+---------------------------------------------| | %C1 | MNP5 enabled | |--------------+---------------------------------------------| | %C2 | V.42bis enabled | |--------------+---------------------------------------------| |>> %C3 | Both MNP5 AND V.42bis enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPROMISE EQUALIZER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] :En [cmds] | |--------------+---------------------------------------------| | Description: | Controls V.32 compromise equalizer | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | :E0 | Equalizer disabled | |--------------+---------------------------------------------| |>> :E1 | Equalizer enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECT MODE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Nn [cmds] | |--------------+---------------------------------------------| | Description: | Sets connect mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \N0 | Normal mode enabled | |--------------+---------------------------------------------| | \N1 | Direct mode enabled | |--------------+---------------------------------------------| | \N2 | Reliable mode enabled | |--------------+---------------------------------------------| |>> \N3 | Auto-reliable mode enabled | |--------------+---------------------------------------------| | \N4 | LAPM mode enabled | |--------------+---------------------------------------------| | \N5 | MNP mode enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | FAX TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S92=n [cmds] | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | 0-15 | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Controls fax transmission level | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Gn [cmds] | |--------------+---------------------------------------------| | Description: | Selects modem port flow control | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \G0 | Flow control disabled | |--------------+---------------------------------------------| | \G1 | Flow control enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XON | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S32=n [cmds] | |--------------+---------------------------------------------| | Default: | 17 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used to represent XON | +------------------------------------------------------------+ +------------------------------------------------------------+ | FLOW CONTROL CHARACTER - XOFF | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S33=n [cmds] | |--------------+---------------------------------------------| | Default: | 19 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the character used to represent XOFF | +------------------------------------------------------------+ +------------------------------------------------------------+ | LEASED LINE TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S99=n [cmds] | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | 0-15 | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Controls leased-line transmission level | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE SIGNAL LEVEL | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %L [cmds] | |--------------+---------------------------------------------| | Range: | 9-43 | |--------------+---------------------------------------------| | Unit: | -1dBm | |--------------+---------------------------------------------| | Description: | Returns received line signal level | +------------------------------------------------------------+ +------------------------------------------------------------+ | MAXIMUM BLOCK SIZE FOR TRANSMISSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \An [cmds] | |--------------+---------------------------------------------| | 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 | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP10 COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -Kn [cmds] | |--------------+---------------------------------------------| | Description: | Selects MNP10 data compression | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | -K0 | MNP10 disabled | |--------------+---------------------------------------------| |>> -K1 | MNP10 enabled | |--------------+---------------------------------------------| | -K2 | MNP10 enabled on originate mode only | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP10 FALL-BACK | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] -Qn [cmds] | |--------------+---------------------------------------------| | Description: | Allows MNP10 to fall back to speeds slower | | | than 4800bps | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | -Q0 | MNP10 at 2400 and 1200bps disabled | |--------------+---------------------------------------------| |>> -Q1 | MNP10 at 2400 and 1200bps enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP10 LINK NEGOTIATION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] *Hn [cmds] | |--------------+---------------------------------------------| | Description: | Sets the speed at which MNP10 link | | | negotiation will occur | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> *H0 | Link will be negotiated at highest possible | | | speed | |--------------+---------------------------------------------| | *H1 | Link will be negotiated at 1200bps | +------------------------------------------------------------+ +------------------------------------------------------------+ | MNP10 POWER LEVEL ADJUST | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] )Mn [cmds] | |--------------+---------------------------------------------| | Description: | Controls automatic transmit power level | | | adjustment during MNP 10 link negotiation | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> )M0 | Power level adjustment disabled | |--------------+---------------------------------------------| | )M1 | Power level adjustment enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | REMOTE ACCESS ESCAPE CHARACTER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S202=n [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | ASCII | |--------------+---------------------------------------------| | Description: | Sets the remote access escape character | +------------------------------------------------------------+ +------------------------------------------------------------+ | REPORT LINE SIGNAL QUALITY | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %Q [cmds] | |--------------+---------------------------------------------| | Description: | Returns line signal quality | +------------------------------------------------------------+ +------------------------------------------------------------+ | SLEEP TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S24=n [cmds] | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 second | |--------------+---------------------------------------------| | Description: | Maximum duration of DTE and DCE inactivity | | | allowed prior to initiating low-power sleep | | | mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | SWITCHED TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S91=n [cmds] | |--------------+---------------------------------------------| | Default: | 10 | |--------------+---------------------------------------------| | Range: | 0-15 | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Controls switched transmission level | +------------------------------------------------------------+ +------------------------------------------------------------+ | TEST MODES | |------------------------------------------------------------| | Format | AT [cmds] S16? [cmds] | |---------------+--------------------------------------------| | Default: | Read-only | |---------------+--------------------------------------------| | Range: | 0-255 | |---------------+--------------------------------------------| | Unit: | Bit-mapped | |---------------+--------------------------------------------| | Description: | Displays 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 | Modem not in remote digital loopback | | | | | | | 1 | Remote digital loopback in progress | |---------+-------+------------------------------------------| | 4 | 0 | Remote digital loopback not requested | | | | | | | 1 | Remote digital loopback requested | |---------+-------+------------------------------------------| | 5 | 0 | Remote digital loopback w/ self-test not | | | | in progress | | | 1 | | | | | Remote digital loopback w/ self-test in | | | | progress | |---------+-------+------------------------------------------| | 6 | 0 | Local analog loopback w/ self-test not | | | | in progress | | | 1 | | | | | Local analog loopback w/ self-test in | | | | progress | +------------------------------------------------------------+ +------------------------------------------------------------+ | TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] @Mn [cmds] | |--------------+---------------------------------------------| | Default: | Unidentified | |--------------+---------------------------------------------| | Range: | 11-31 | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Sets initial transmit power level for | | | transmission | |--------------+---------------------------------------------| | i Command | Function | |--------------+---------------------------------------------| | @M0 | -26dBm | |--------------+---------------------------------------------| | @M1 | -30dBm | |--------------+---------------------------------------------| | @M2-@M10 | -10dBm | +------------------------------------------------------------+