AT&T PARADYNE ============= DATAPORT 3710 Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 14.4Kbps Maximum Fax Rate 14.4Kbps Data Bus External 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 Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29 Protocol Error MNP5, 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 | |-----+-------+--------+-------------------------------------| | EC | Red | On | Error correction enabled | |-----+-------+--------+-------------------------------------| | EC | Red | Off | Error correction disabled | |-----+-------+--------+-------------------------------------| | HS | Red | On | Modem is operating at highest | | | | | configured speed | |-----+-------+--------+-------------------------------------| | HS | Red | Off | Modem is operating at less than | | | | | highest configured speed | |-----+-------+--------+-------------------------------------| | 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 | DSR signal is high | |-----+-------+--------+-------------------------------------| | MR | Red | Off | DSR signal is low | +------------------------------------------------------------+ Proprietary AT Command Set +------------------------------------------------------------+ | AT COMMAND RESPONSE | |------------------------------------------------------------| | Type: | Regtster | |--------------+---------------------------------------------| | Format: | AT [cmds] S84=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S84=0 &W | |--------------+---------------------------------------------| | Description: | Sets the response to AT commands. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S84=0 | Normal operation | |--------------+---------------------------------------------| | S84=1 | Execute valid commands, suppress error | | | codes. | |--------------+---------------------------------------------| | S84=2 | Ignore configuration commands, always | | | return OK error code. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO BAUD | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S78=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S78=0 &W | |--------------+---------------------------------------------| | Description: | Allows modem to connect at remote modem's | | | modulation during V.32bis connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S78=0 | Auto baud enabled. | |--------------+---------------------------------------------| | S78=1 | Auto baud disabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 | |--------------+---------------------------------------------| |>> \CO | Data is discarded. | |--------------+---------------------------------------------| | \C1 | Data is buffered. | |--------------+---------------------------------------------| | \C2 | Data is discarded, resets to \C1 on receipt | | | of autoreliable fallback character. | +------------------------------------------------------------+ +------------------------------------------------------------+ | AUTO-RELIABLE FALLBACK CHARACTER | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | 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. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BREAK TYPE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Kn [cmds] | |--------------+---------------------------------------------| | Example: | AT \K5 &W | |--------------+---------------------------------------------| | Description: | Selects response to DTE break command. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \K0 | Send break, clear buffer, enter command | | | mode. | |--------------+---------------------------------------------| | \K1 | Send break, clear buffer. | |--------------+---------------------------------------------| | \K2 | Send break, send data, enter command mode. | |--------------+---------------------------------------------| | \K3 | Send break. send data. | |--------------+---------------------------------------------| | \K4 | Send data, send break, enter command mode. | |--------------+---------------------------------------------| |>> \K5 | Send data, send break. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CELLULAR ENHANCEMENTS | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S91=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S91=0 &W | |--------------+---------------------------------------------| | Description: | Configures modem to enhanced cellular mode | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S91=0 | Disabled | |--------------+---------------------------------------------| | S91=1 | Enabled | +------------------------------------------------------------+ +------------------------------------------------------------+ | CD SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &Cn [cmds] | |--------------+---------------------------------------------| | Example: | AT &C3 &B0 | |--------------+---------------------------------------------| | Description: | Configures the behavior of the carrier | | | detect signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> &C0 | CD forced high. | |--------------+---------------------------------------------| | &C1 | CD normal. | |--------------+---------------------------------------------| | &C2 | Blink on disconnect. | |--------------+---------------------------------------------| | &C3 | CD follows DTR. | |--------------+---------------------------------------------| | &C4 | Simulated control carrier. | |--------------+---------------------------------------------| | &C5 | CD follows DTR, forced low on disconnect. | +------------------------------------------------------------+ +------------------------------------------------------------+ | COMPRESSION | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT %Cn | |--------------+---------------------------------------------| | Example: | AT &B0 %C1 &I2 | |--------------+---------------------------------------------| | Description: | Selects V.42 and MNP 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 mode only enabled. | |--------------+---------------------------------------------| | \N3 | MNP mode with fallback to normal mode | | | enabled. | |--------------+---------------------------------------------| | \N4 | LAP-M mode only enabled. | |--------------+---------------------------------------------| | \N5 | LAP-M mode with fallback to normal mode | | | enabled. | |--------------+---------------------------------------------| | \N6 | V.42/MNP only enabled. | |--------------+---------------------------------------------| |>> \N7 | V.42/MNP with fallback to normal mode | | | enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CONNECTION SPEED UPPER LIMIT | |------------------------------------------------------------| | Type: | Immediate | |--------------+---------------------------------------------| | Format: | AT [cmds] %Bn [cmds] | |--------------+---------------------------------------------| | Example: | AT %B14400 | |--------------+---------------------------------------------| | Description: | Selects the current DCE speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | %B300 | Select V.21 or Bell103 at 300bps speed. | |--------------+---------------------------------------------| | %B1200 | Select V.22,V.23 or Bell 212A at 1200bps | | | speed. | |--------------+---------------------------------------------| | %B2400 | Select V.22 at 2400bps speed. | |--------------+---------------------------------------------| | %B4800 | Select v.32/V.32bis at 4800bps speed. | |--------------+---------------------------------------------| | %B7200 | Select V.32bis at 7200bps speed. | |--------------+---------------------------------------------| | %B9600 | Select V.32bis/V.32 at 9600bps speed. | |--------------+---------------------------------------------| | %B12000 | Select V.32bis at 12Kbps speed. | |--------------+---------------------------------------------| |>> %B14400 | Select V.32bis at 14.4Kbps speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | CTS SIGNAL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \Dn [cmds] | |--------------+---------------------------------------------| | Example: | AT \D0 | |--------------+---------------------------------------------| | Description: | Selects the function of the CTS signal. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> \D0 | CTS forced high. | |--------------+---------------------------------------------| | \D1 | CTS normal. | |--------------+---------------------------------------------| | \D2 | CTS interrupted for 2 seconds on | | | disconnect. | |--------------+---------------------------------------------| | \D3 | CTS follows DTR. | +------------------------------------------------------------+ +------------------------------------------------------------+ | DISCONNECT IMMEDIATELY | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S85=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S85=0 &W | |--------------+---------------------------------------------| | Description: | Disconnect immediately on receipt of | | | disconnect signal from DTE or diagnostic | | | control panel. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S85=0 | Disabled. | |--------------+---------------------------------------------| | S85=1 | Enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | FAX DISABLE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S79=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S79=1 &W | |--------------+---------------------------------------------| | Description: | Enables V.17 fax capability | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S79=0 | Disable | |--------------+---------------------------------------------| |>> S79=1 | Enable | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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 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 | XON/XOFF flow control by DCE enabled. | |--------------+---------------------------------------------| | \Q5 | XON/XOFF flow control by DTE enabled. | |--------------+---------------------------------------------| | \Q6 | RTS flow control by DTE enabled. | +------------------------------------------------------------+ +------------------------------------------------------------+ | INACTIVITY TIMER | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] \Tn [cmds] | |--------------+---------------------------------------------| | Example: | AT\T20 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 0-255 | |--------------+---------------------------------------------| | Unit: | 1 minute | |--------------+---------------------------------------------| | Description: | Sets the length of time that the modem does | | | not receive information before it | | | disconnects. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LAP-M FRAME SIZE | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] \An [cmds] | |--------------+---------------------------------------------| | Example: | AT \A3 %C1 | |--------------+---------------------------------------------| | Description: | Sets the maximum frame size for V.42 and | | | MNP connections. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | \A0 | Maximum frame size is 64 | |--------------+---------------------------------------------| | \A1 | Maximum frame size is 128 | |--------------+---------------------------------------------| | \A2 | Maximum frame size is 192 | |--------------+---------------------------------------------| |>> \A3 | Maximum frame size is 256 | |--------------+---------------------------------------------| | \A4 | Maximum frame size is 32 | |--------------+---------------------------------------------| | \A5 | Maximum frame size is 16 | |------------------------------------------------------------| | Note: Maximum V.42 frame size is 128. | +------------------------------------------------------------+ +------------------------------------------------------------+ | LAP-M FRAME WINDOW | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S89=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS89=6 | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | 1-9 | |--------------+---------------------------------------------| | Unit: | 1 frame (beginning with 0=6 frames) | |--------------+---------------------------------------------| | Description: | Sets the number of frames used in V.42 and | | | V.42bis transmissions | +------------------------------------------------------------+ +------------------------------------------------------------+ | LINE SPEED | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S41=n [cmds] | |--------------+---------------------------------------------| | Example: | ATS41=6 | |--------------+---------------------------------------------| | Default: | 1 | |--------------+---------------------------------------------| | Description: | Sets maximum line speed | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S41=1 | 14.4Kbps V.32bis | |--------------+---------------------------------------------| | S41=2 | 12.0Kbps V.32bis | |--------------+---------------------------------------------| | S41=3 | 9600bps V.32bis, V.32 | |--------------+---------------------------------------------| | S41=4 | 7200bps V.32bis | |--------------+---------------------------------------------| | S41=5 | 4800bps V.32bis, V.32 | |--------------+---------------------------------------------| | S41=6 | 2400bps V.22bis | |--------------+---------------------------------------------| | S41=7 | 1200bps V.22 | |--------------+---------------------------------------------| | S41=8 | 1200bps 212A | |--------------+---------------------------------------------| | S41=10 | 0-300bps V21 | |--------------+---------------------------------------------| | S41=11 | 0-300bps 103j | |--------------+---------------------------------------------| | S41=12 | 1200/75bps V.23 | |--------------+---------------------------------------------| | S41=13 | 75/1200bps V.23 | +------------------------------------------------------------+ +------------------------------------------------------------+ | LOCK SERIAL PORT | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S90=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S90=0 | |--------------+---------------------------------------------| | Description: | Sets operation of serial port speed. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| | S90=0 | Disabled. | |--------------+---------------------------------------------| | S90=1 | Serial speed follows connect speed. | +------------------------------------------------------------+ +------------------------------------------------------------+ | TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] &In [cmds] | |--------------+---------------------------------------------| | Example: | AT &I26 &W | |--------------+---------------------------------------------| | Default: | 0 | |--------------+---------------------------------------------| | Range: | -10dBm to -.25dBm | |--------------+---------------------------------------------| | Unit: | -1 dBm | |--------------+---------------------------------------------| | Description: | Sets the signal level for transmission | +------------------------------------------------------------+ +------------------------------------------------------------+ | TRANSMISSION LEVEL | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] &J0 [cmds] | |--------------+---------------------------------------------| | Example: | AT &J0 &W | |--------------+---------------------------------------------| | Description: | Sets permissive mode | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.32bis AUTO-RETRAIN | |------------------------------------------------------------| | Type: | Configuration | |--------------+---------------------------------------------| | Format: | AT [cmds] S76=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S76=0 &W | |--------------+---------------------------------------------| | Description: | Selects action the modem will take during | | | bad line quality on 32bis connection. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S76=0 | Auto retrain enabled. | |--------------+---------------------------------------------| | S76=1 | Auto retrain disabled. | |--------------+---------------------------------------------| | S76=2 | Auto retrain started at 4800bps. | |--------------+---------------------------------------------| | S76=3 | Auto retrain started at 9600bps | +------------------------------------------------------------+ +------------------------------------------------------------+ | V.32bis TRAIN | |------------------------------------------------------------| | Type: | Register | |--------------+---------------------------------------------| | Format: | AT [cmds] S43=n [cmds] | |--------------+---------------------------------------------| | Example: | AT S43=0 &W | |--------------+---------------------------------------------| | Description: | Sets train length. Cellular setting is | | | short. | |--------------+---------------------------------------------| | Command | Function | |--------------+---------------------------------------------| |>> S43=0 | Long | |--------------+---------------------------------------------| | S43=1 | Short | +------------------------------------------------------------+ +------------------------------------------------------------+ | 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. | +------------------------------------------------------------+