QUADRANT COMPONENTS, INC. CHOICE 33.6 Card Type Modem (asynchronous) Chipset U.S. Robotics Maximum Data Rate 33.6Kbps Maximum Fax Rate 14.4Kbps Data Modulation Bell 103A, 212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 Fax Modulation Unidentified Error Correction/Compression MNP5, V.42, V.42bis Fax Class Class I & II Data Bus 8-bit ISA Card Size Full height, half length [Image] CONNECTIONS Function Label Function Label Telephone line CN1 Telephone line CN2 SERIAL PORT ADDRESS SELECTION Setting JP1/A JP1/B JP1/C 3F8h (COM1:) Closed Closed Closed 2F8h (COM2:) Open Closed Closed 3E8h (COM3:) Closed Open Closed 2E8h (COM4:) Open Open Closed Plug-N-Play Open Open Open INTERRUPT SELECTION Setting JP2/A JP2/B JP2/C JP2/D JP2/E 2 Closed Open Open Open Open 3 Open Closed Open Open Open 4 Open Open Closed Open Open 5 Open Open Open Closed Open 7 Open Open Open Open Closed Plug-N-Play Open Open Open Open Open SUPPORTED STANDARD COMMANDS Basic AT Commands +++, ‘comma’, A/ A, B, C, D, E, F, H, L, M, O, P, T, V, X &C, &D, &G, &P, &R, &S, &T, &W, &Z S-Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S38 Note: See MHI help file for complete information. Proprietary AT Command Set BIT-MAPPED REGISTER S13 Format AT [cmds] S13=n [cmds] Default: 0 Range: 0 - 159 Description: Controls DTR reset, non-error-correcting mode buffer, BS/DEL switch, DTR dialing, reset dialing, and escape sequence reaction. Bit Value Function 0 0 DTR normal. 1 Reset on low DTR. 1 0 Non-error-correcting mode transmit buffer set to 1.5KB. 1 Non-error-correcting mode transmit buffer set to 128 bytes. 2 0 Backspace and delete keys normal. 1 Backspace and delete keys reversed. 3 0 DTR dialing disabled. 1 DTR dialing enabled. 4 0 Reset dialing disabled. 1 Reset dialing enabled. 6, 5 00 Not used. 7 0 Modem reacts normally to escape sequence. 1 Modem disconnects and returns to command state upon receiving an escape sequence. BIT-MAPPED REGISTER S27 Format: AT [cmds] S27=n [cmds] Default: 0 Range: 0 - 191 Description: Controls V.21, V.32 encoding and modulation, V.42 answer tone, V.32 fallback, V.32bis mode, and 9600 result codes. Bit Value Function 0 0 V.21 disabled. 1 V.21 enabled. 1 0 V.32 trellis coding disabled. 1 V.32 trellis coding enabled. 2 0 V.32 modulation enabled. 1 V.32 modulation disabled. 3 0 2100Hz answer tone enabled. 1 2100Hz answer tone disabled. 4 0 V.32 fallback disabled. 1 V.32 fallback enabled. 5 0 V.32bis enabled. 1 V.32bis disabled. 6 0 Not used. 7 0 Actual result codes displayed. 1 Force 9600 result codes. BREAK LENGTH Type: Register Format: AT [cmds] S21=n [cmds] Default: 10 Range: Unidentified Unit: 10 ms Description: Sets the length of error control mode breaks sent from DCE to DTE. BREAK TYPE Type: Configuration Format: AT [cmds] &Yn [cmds] Description: Configures action of break signal. Command Function &Y0 Break empties buffer. &Y1 Break empties buffer and is sent immediately. &Y2 Break does not empty buffer and is sent immediately. COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects communications mode. Command Mode &M0 Modem operates in asynchronous mode. &M5 Modem operates in asynchronous auto-reliable mode. &M6 Modem operates in asynchronous reliable mode. COMPRESSION MODE Type: Configuration Format: AT [cmds] &Kn [cmds] Description: Selects the type of data compression that will be used. Command Function &K0 Data compression disabled. &K1 Auto-detect compression mode. &K2 Data compression enabled. &K3 MNP5 data compression only enabled. CONNECTION SPEED LOWER LIMIT Type: Configuration Format: AT [cmds] &Un [cmds] Description: Sets slowest allowed connection speed if &N is set to 1 or higher. Command Function &U0 No minimum connect speed. &U1 Set minimum connect speed to 300bps. &U2 Set minimum connect speed to 1200bps. &U3 Set minimum connect speed to 2400bps. &U4 Set minimum connect speed to 4800bps. &U5 Set minimum connect speed to 7200bps. &U6 Set minimum connect speed to 9600bps. &U7 Set minimum connect speed to 12Kbps. &U8 Set minimum connect speed to 14.4Kbps. &U9 Set minimum connect speed to 16.8Kbps. &U10 Set minimum connect speed to 19.2Kbps. &U11 Set minimum connect speed to 21.6Kbps. &U12 Set minimum connect speed to 24Kbps. &U13 Set minimum connect speed to 26.4Kbps. &U14 Set minimum connect speed to 28.8Kbps. &U15 Set minimum connect speed to 31.2Kbps. &U16 Set minimum connect speed to 33.6Kbps. CONNECTION SPEED UPPER LIMIT Type: Configuration Format: AT [cmds] &Nn [cmds] Description: Sets required connection speed if &U is set to 0; otherwise, sets fastest allowed connection speed. Command Function &N0 No maximum connect speed. &N1 Set maximum connect speed to 300bps. &N2 Set maximum connect speed to 1200bps. &N3 Set maximum connect speed to 2400bps. &N4 Set maximum connect speed to 4800bps. &N5 Set maximum connect speed to 7200bps. &N6 Set maximum connect speed to 9600bps. &N7 Set maximum connect speed to 12Kbps. &N8 Set maximum connect speed to 14.4Kbps. &N9 Set maximum connect speed to 16.8Kbps. &N10 Set maximum connect speed to 19.2Kbps. &N11 Set maximum connect speed to 21.6Kbps. &N12 Set maximum connect speed to 24Kbps. &N13 Set maximum connect speed to 26.4Kbps. &N14 Set maximum connect speed to 28.8Kbps. &N15 Set maximum connect speed to 31.2Kbps. &N16 Set maximum connect speed to 33.6Kbps. DISPLAY INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested about the modem. Command Function I0 Displays product code. I1 Displays ROM checksum result. I2 Displays RAM checksum result. I3 Displays firmware version. I4 Displays current command settings. I5 Displays current NVRAM settings. I6 Displays link diagnostics. I7 Displays configuration. I9 Displays Plug-N-Play information. I11 Displays call statistics. ERROR CORRECTION/COMPRESSION Format: AT [cmds] S15=n [cmds] Default: 0 Range: 0 - 255 Description: Selects which classes of error correction and compression may be used. Bit Value Function 0 0 MNP and V.42 enabled during V.22 operation. 1 MNP and V.42 disabled during V.22 operation. 1 0 MNP and V.42 enabled during V.22bis operation. 1 MNP and V.42 disabled during V.22bis operation. 2 0 MNP and V.42 enabled during V.32 and V.32bis operation. 1 MNP and V.42 disabled during V.32 and V.32bis operation. 3 0 MNP enabled. 1 MNP disabled. 4 0 MNP 4 enabled. 1 MNP 4 disabled. 5 0 MNP 3 enabled. 1 MNP 3 disabled. 6 0 MNP normal. 1 MNP adjusted for non compliant modems. 7 0 V.42 enabled. 1 V.42 disabled. EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] &An [cmds] Description: Selects extended result codes. Command Function &A0 Extended result codes disabled. &A1 ARQ result codes enabled. &A2 V.32 result code enabled. &A3 Error control and compression result codes enabled. FACTORY DEFAULTS Type: Immediate Format: AT [cmds] &Fn [cmds] Description: Resets the modem to the specified factory profile. Command Function &F0 Modem resets to factory generic profile. &F1 Modem resets to factory hardware flow control profile. &F2 Modem resets to factory software flow control profile. FLOW CONTROL CHARACTER - XON Type: Register Format: AT [cmds] S22=n [cmds] Default: 17 Range: 11 - 127 Unit: ASCII Description: Sets the character used to represent XON. FLOW CONTROL CHARACTER - XOFF Type: Register Format: AT [cmds] S23=n [cmds] Default: 19 Range: 11 - 127 Unit: ASCII Description: Sets the character used to represent XOFF. FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] &Hn [cmds] Description: Sets type of flow control used by modem. Command Function &H0 Flow control disabled. &H1 CTS/RTS flow control enabled. &H2 XON/XOFF flow control enabled. &H3 CTS/RTS and XON/XOFF flow control enabled. HELP - AMPERSAND Type: Immediate Format: AT [cmds] &$ Description: Displays help on the AT& commands. HELP - DIAL Type: Immediate Format: AT [cmds] D$ Description: Displays help on dial modifiers. HELP - GENERAL Type: Immediate Format: AT [cmds] $ Description: Displays help on the basic (no prefix) AT commands. HELP - S-REGISTERS Type: Immediate Format: AT [cmds] S$ Description: Displays help on the S-registers. INACTIVITY TIMER Type: Register Format: AT [cmds] S19=n [cmds] Default: 0 Range: 0-255 Unit: 1 minute Description: Sets the length of time that the modem does not receive information before it disconnects; S19=0 will disable this function. LOCK SERIAL PORT Type: Configuration Format: AT [cmds] &Bn [cmds] Description: Sets operation of serial port speed. Command Function &B0 Serial speed follows connect speed. &B1 Serial speed locked. &B2 Serial speed locked in ARQ mode only. PROFILE ON POWER-UP Type: Configuration Format: AT [cmds] Yn [cmds] Description: Selects the profile that the modem will reset to on power-up. Command Function Y0 Modem resets to user profile 0 on power-up. Y1 Modem resets to user profile 1 on power-up. Y2 Modem resets to factory generic profile on power-up. Y3 Modem resets to factory hardware flow control profile on power-up. Y4 Modem resets to factory software flow control profile on power-up. RESET MODEM Type: Immediate Format: AT [cmds] Zn [cmds] Description: Resets the modem to the specified profile. Command Function Z0 Modem resets to profile set with the Y command. Z1 Modem resets to user profile 0. Z2 Modem resets to user profile 1. Z3 Modem resets to factory generic profile. Z4 Modem resets to factory hardware flow control profile. Z5 Modem resets to factory software flow control profile. RESULT CODES Type: Configuration Format: AT [cmds] Qn [cmds] Description: Enables modem to send result codes to the DTE. Command Function Q0 Result codes enabled. Q1 Result codes disabled. Q2 Result codes enabled in originate mode only. TONE DIALING TEST Type: Register Format: AT [cmds] S16=n [cmds] Description: Begins a tone dialing test. Command Function S16=0 Tone dialing test disabled. S16=2 Tone dialing test enabled. V.21 ANSWER MODE FALLBACK TIMER Type: Register Format: AT [cmds] S29=n [cmds] Default: 20 Range: Unidentified Unit: .1 second Description: The function of this register is unidentified. V.32 HANDSHAKE TIME Type: Register Format: AT [cmds] S28=n [cmds] Default: 8 Range: 0 - 255 Unit: .1 second Description: Sets length of V.32 handshake. Setting S28 to 255 disables all connections except 9600bps V.32 mode. V.34 AND V.FC OPTIONS Format: AT [cmds] S32=n [cmds] Default: 2 Range: 0 - 31 Description: Controls various V.34 and V.FC options. Bit Value Function 0 0 Call indicate during V.34 operation disabled. 1 Call indicate during V.34 operation enabled. 1 0 V.8 during V.34 operation disabled. 1 V.8 during V.34 operation enabled. 2 0 V.FC modulation enabled. 1 V.FC modulation disabled. 3 0 V.34 modulation enabled. 1 V.34 modulation disabled. 4 0 33.6Kbps V.34 modulation enabled. 1 33.6Kbps V.34 modulation disabled. V.34 OPTIONS Format: AT [cmds] S33=n [cmds] Default: 0 Range: 0 - 191 Description: Controls V.34 baud rate and shaping. Bit Value Function 0 0 2400 baud rate enabled. 1 2400 baud rate disabled. 1 0 2743 baud rate enabled. 1 2743 baud rate disabled. 2 0 2800 baud rate enabled. 1 2800 baud rate disabled. 3 0 3000 baud rate enabled. 1 3000 baud rate disabled. 4 0 3200 baud rate enabled. 1 3200 baud rate disabled. 5 0 3429 baud rate enabled. 1 3429 baud rate disabled. 6 0 Not used. 7 0 Shaping enabled. 1 Shaping disabled. V.34 OPTIONS Format: AT [cmds] S34=n [cmds] Default: 0 Range: 0 - 255 Description: Controls V.34 mapping, non-linear coding, transmit level deviation, pre-emphasis, and pre-coding. Bit Value Function 0 0 8S-2D map enabled. 1 8S-2D map disabled. 1 0 16S-4D map enabled. 1 16S-4D map disabled. 2 0 32S-2D map enabled. 1 32S-2D map disabled. 3 0 64S-4D map enabled. 1 64S-4D map disabled. 4 0 Non-linear coding enabled. 1 Non-linear coding disabled. 5 0 Transmit level deviation enabled. 1 Transmit level deviation disabled. 6 0 Pre-emphasis enabled. 1 Pre-emphasis disabled. 7 0 Pre-coding enabled. 1 Pre-coding disabled. XON/XOFF PASS-THROUGH Type: Configuration Format: AT [cmds] &In [cmds] Description: Selects whether XON/XOFF signals are sent to remote modem. Command Function &I0 Software flow control disabled. &I1 XON/XOFF pass-through enabled. &I2 XON/XOFF pass-through disabled.