VEN-TEL, INC. PCMCIA144FAX Modem Type Data (synchronous/asynchronous)/Fax Maximum Data Rate 14.4Kbps Maximum Fax Rate 14.4Kbps Data Bus PCMCIA Type II Fax Class Class I & II Data Modulation Protocol Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis Fax Modulation Protocol ITU-T V.17, V.27, V.29 Error Correction/Compression MNP5, MNP10, V.42, V.42bis Proprietary Command Set V1175 ABORT DIALING Type: Register Format: AT [cmds] S64=n [cmds] Example: AT S64=1 Description: Selects whether dialing and handshaking sequences can be interrupted. Command Function » S64=0 Dialing and handshaking are aborted on receipt of a character from the serial port. S64=1 Characters received from the serial port during dialing and handshaking are ignored. BIT-MAPPED REGISTER S14 Format AT [cmds] S14=n [cmds] Example: ATS14=139 Default: Unidentified Range: 0 - 255 Unit: Bit-mapped Description: Controls echo, quiet mode, result codes, dial mode, and originate/answer mode. Bit Value Function 0 1 Not used. 1 0 Command echo function disabled. 1 Command echo function enabled. 2 0 Result code sending enabled. 1 Result code sending disabled. 3 0 Numeric format enabled. 1 Verbose format enabled. 4 0 Not used. 5 0 Tone dialing mode enabled. 1 Pulse dialing mode enabled. 6 0 Result codes normal. 1 Result codes disabled in answer mode. 7 0 Answer mode enabled. 1 Originate mode enabled. BIT-MAPPED REGISTER S21 Format AT [cmds] S21=n [cmds] Example: ATS21=1 Default: Unidentified Range: 0 - 255 Unit: Bit-mapped Description: Controls stored profile DTR action, DCD signal, and the Long Space Disconnect function. Bit Value Function 0 0 Not used. 1 0 Use stored profile 0. 1 Use stored profile 1. 4, 3, 2 000 DTR signal forced high. 001 Modem goes to command mode on low DTR. 010 Modem disconnects on low DTR. Auto-Answer is disabled. 011 Modem is initialized on low DTR. 100 Modem dials default number on low DTR. 6, 5 00 DCD signal forced high. 01 DCD signal normal. 10 DCD signal forced high except during disconnect. 7 0 Long Space Disconnect function disabled. 1 Long Space Disconnect function enabled. BIT-MAPPED REGISTER S22 Format AT [cmds] S22=n [cmds] Example: ATS22=114 Default: Unidentified Range: 0 - 255 Unit: Bit-mapped Description: Controls volume and speaker settings, result codes, and make/break pulse ratio. Bit Value Function 1, 0 00 Lowest volume setting. 01 Low volume setting. 10 Medium volume setting 11 Highest volume setting. 3, 2 00 Speaker disabled. 01 Speaker enabled until carrier signal detected 10 Speaker enabled. 11 Speaker enabled following dialing, then disabled after carrier signal detected. 6, 5 ,4 000 Busy and dialtone detection disabled, result codes 0-4 enabled. 100 Busy and dialtone detection disabled, 101 result codes 0-5, 10 enabled. 110 Busy tone detection disabled, dialtone detection enabled, result codes 0-6, 10 111 enabled. Busy tone detection enabled, dialtone detection disabled, result codes 0-5, 7, 10 enabled. Busy and dialtone detection enabled, result codes 0-7, 10 enabled. 7 0 Not used. BIT-MAPPED REGISTER S23 Format AT [cmds] S23=n [cmds] Example: ATS23=114 Default: 0, read-only (see note) Range: 0 - 255 Unit: Bit-mapped Description: Controls guard tones. Also indicates detected serial port speed and parity. Also provides storage for remote digital loopback tests. Note: All bits except bits 6 and 7 are read-only. Bit Value Function 0 N/A Reserved for internal use. 3, 2, 1 000 Local speed detected at 300bps. 001 Local speed detected at 600bps. 010 Local speed detected at 1200bps. 011 Local speed detected at 2400bps. 100 Local speed detected at 4800bps. 101 Local speed detected at 9600bps. 110 Local speed detected at 19200bps. 111 Local speed detected at 38400bps. 5, 4 00 Even parity. 10 Odd parity. 11 No parity. 7, 6 » 00 Guard tone disabled. 01 550Hz guard tone enabled. 10 1800Hz guard tone enabled. BIT-MAPPED REGISTER S27 Format AT [cmds] S27=n [cmds] Example: ATS27=201 Default: Unidentified Range: 0 - 255 Unit: Bit-mapped Description: Controls communications mode, line type, and protocol type. Note: Be aware that bits 2 and 3 are out of order. Bit Value Function 3, 1, 0 000 Asynchronous mode, serial port speed follows connect speed. 001 Asynchronous off-line command mode and 101 synchronous connect mode. 110 Error-correcting mode. Asynchronous mode, serial port speed locked. 2 0 Not used. 4 0 Not used. 5 0 Not used. 6 0 Select CCITT protocols. 1 Select Bell protocols. 7 0 DSR forced high. 1 DSR normal. COMPRESSION Type: Register Format: AT [cmds] S41=n [cmds] Example: AT S41=1 Description: Selects data compression. Command Function S41=0 Data compression disabled. S41=1 MNP data compression enabled. S41=2 V.42bis data compression enabled. S41=3 MNP and V.42bis data compression enabled. COMPRESSION MODE Type: Configuration Format: AT %Cn Example: AT %C1 -K1 -Q0 Description: Selects active compression protocols. Command Function %C0 Compression disabled. %C1 MNP compression only enabled. %C2 V.42bis compression only enabled. » %C3 MNP and V.42bis compression enabled. DIAL Type: Immediate Format: AT [cmds] D<#> [; cmds] Example: AT D 9W 1-800-555-2345^,,2554#; ATE1 Description: Dials telephone number according to any modifiers included in the string.. Command Function L Redial last number dialed. ^ Transmit calling tone. FLOW CONTROL Type: Configuration Format: AT [cmds] \Gn [cmds] Example: AT \G1 &K3 Description: Selects flow control. Command Function » \G0 Flow control disabled. \G1 Flow control enabled. LOOPBACK TESTS Format AT [cmds] S16=n [cmds] Example: ATS16=32 Default: Unidentified Range: 0 - 255 Unit: Bit-mapped Description: Enables loopback tests. Note: Bit 3 is read-only. Bit Value Function 0 » 0 Local analog loopback test disabled. 1 Local analog loopback test enabled. 1 0 Not used. 2 » 0 Local digital loopback test disabled. 1 Local digital loopback test enabled. 3 » 0 Modem is not performing remote digital loopback test. 1 Modem is performing remote digital loopback test. 4 » 0 Remote digital loopback test disabled. 1 Remote digital loopback test enabled. 5 » 0 Remote digital loopback with local self-test disabled. 1 Remote digital loopback with local self-test enabled. 6 » 0 Local analog loopback with local self-test disabled. 1 Local analog loopback with local self-test enabled. 7 0 Not used. MNP10 COMPRESSION Type: Configuration Format: AT [cmds] -Kn [cmds] Example: AT %C1 -K1 -Q0 Description: Selects MNP10 data compression. Command Function » -K0 MNP10 disabled. -K1 MNP10 enabled. -K2 MNP10 enabled after V.42 answer mode detection. MNP10 FALL-BACK Type: Configuration Format: AT [cmds] -Qn [cmds] Example: AT *H0 -Q1 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] Example: AT *H0 -Q1 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. *H2 Link will be negotiated at 4800bps.