BEST DATA PRODUCTS, INC. MACH 2 56K Card Type Modem (asynchronous) Chipset Unidentified Maximum Data Rate 56Kbps 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 U.S. Robotics x2 Fax Modulation ITU-T V.17, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis Fax Class Class I & II Data Bus 16-bit ISA Card Size Full height, half length [Image] CONNECTIONS Function Label Function Label Telephone line out CN1 Telephone line in CN2 SUPPORTED STANDARD COMMANDS Basic AT Commands +++, ‘comma’, A/ A, B, E, F, H, L, M, O, P, T, V, X, Z &C, &D, &F, &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. UNIDENTIFIED COMMANDS Command Default S31 128 Proprietary AT Command Set BIT-MAPPED REGISTER S13 Format AT [cmds] S13=n [cmds] Default: 0 Range: 0 - 159 Description: Controls DTR reset, DTR dialing, reset dialing, and MNP3. 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 enters command state when +++ is received. 1 Modem disconnects and enters command state when +++ is received. BIT-MAPPED REGISTER S15 Format: AT [cmds] S15=n [cmds] Default: 0 Range: 0 - 255 Description: Controls error correction and compression in selected protocols, MNP modes, and V.42 operation. Bit Value Function 0 0 Error correction/compression enabled in V.22 mode. 1 Error correction/compression disabled in V.22 mode. 1 0 Error correction/compression enabled in V.22bis mode. 1 Error correction/compression disabled in V.22bis mode. 2 0 Error correction/compression enabled in V.32 and V.32bis modes. 1 Error correction/compression disabled in V.32 and V.32bis modes. 3 0 MNP handshake enabled. 1 MNP handshake disabled. 4 0 MNP4 disabled. 1 MNP4 enabled. 5 0 MNP3 disabled. 1 MNP3 enabled. 6 0 MNP operation normal 1 MNP configured for non-compatible modems. 7 0 V.42 enabled. 1 V.42 disabled. BIT-MAPPED REGISTER S27 Format: AT [cmds] S27=n [cmds] Default: 0 Range: 0 - 191 Description: Controls V.21/Bell 103A, V.32 encoding and modulation, V.32bis modulation, V.42 answer tone and selective reject, and 9600 result codes. Bit Value Function 0 0 Bell 103A enabled. 1 V.21 enabled. 1 0 V.32 trellis coding enabled. 1 V.32 trellis coding disabled. 2 0 V.32 modulation enabled. 1 V.32 modulation disabled. 3 0 2100Hz answer tone enabled. 1 2100Hz answer tone disabled. 4 0 Fallback to V.23 disabled. 1 Fallback to V.23 enabled. 5 0 V.32bis modulation enabled. 1 V.32bis modulation disabled. 6 0 Not used. 7 0 Actual result codes displayed. 1 Force 9600 result codes. BIT-MAPPED REGISTER S32 Format: AT [cmds] S32=n [cmds] Default: 0 Range: 0 - 59 Description: Controls V.8 protocol and options, and V.34 and x2 modulation protocols. Bit Value Function 0 0 V.8 Call Indicate disabled. 1 V.8 Call Indicate enabled. 1 0 V.8 disabled. 1 V.8 enabled. 2 0 Not used. 3 0 V.34 modulation enabled. 1 V.34 modulation disabled. 4 0 V.34 modulation at 31.2Kbps and 33.6Kbps enabled. 1 V.34 modulation at 31.2Kbps and 33.6Kbps disabled. 5 0 U.S. Robotics x2 modulation enabled. 1 U.S. Robotics x2 modulation disabled. BREAK LENGTH Type: Register Format: AT [cmds] S21=n [cmds] Default: 10 Range: 0 - 255 Unit: 10 ms Description: Sets the length of error correction 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. 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. CONNECTION SPEED LOWER LIMIT (CON'T) Command Function &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. 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. DIAL Type: Immediate Format: AT [cmds] D<#>;[cmds] Description: Dials the telephone number indicated according to any modifiers included in the string. Command Function DL Re-dial last number. DP Pulse dialing enabled. DR Answer mode enabled; originate mode disabled following handshake initiation. DSn Dial stored telephone number n. DT Tone dialing enabled. DW Dialing resumed following dial tone detection. D, Dialing paused for amount of time specified in S8 register. D/ Dialing paused for 1/8 second. D! Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook. D@ Wait for Quiet Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string. D; Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. DISPLAY HELP SCREEN - AMPERSAND Type: Configuration Format: AT [cmds] &$ [cmds] Description: Displays the help screen on the AT& commands. DISPLAY HELP SCREEN - BASIC Type: Configuration Format: AT [cmds] $ [cmds] Description: Displays the basic help screen. DISPLAY HELP SCREEN - DIAL Type: Configuration Format: AT [cmds] D$ [cmds] Description: Displays the help screen on the dialing commands. DISPLAY HELP SCREEN - REGISTERS Type: Configuration Format: AT [cmds] S$ [cmds] Description: Displays the help screen for S registers. DISPLAY INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays modem properties. Command Function I0 Displays product identification code. I1 Tests and displays ROM checksum result. I2 Tests and displays RAM checksum result. I3 Displays product type. I4 Displays current command settings. I5 Displays current NVRAM settings. I6 Displays link diagnostics. I7 Displays product configuration. I10 Displays virtual device driver configuration. I11 Displays current connection’s statistics for V.34 mode. ERROR CORRECTION MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects active error correction protocols. Command Function &M0 Normal mode only. &M4 Auto-detect mode. &M5 Error correction mode only. EXTENDED RESULT CODES Type: Configuration Format: AT [cmds] &An [cmds] Description: Selects extended result codes. Command Function &A0 Extended result codes disabled. &A1 Error correction result codes enabled. &A2 V.32 result code enabled. &A3 Error correction and compression result codes enabled. FLOW CONTROL CHARACTER - XOFF Type: Register Format: AT [cmds] S23=n [cmds] Default: 19 Range: 0 - 127 Unit: 1 ASCII character Description: Sets the character used to represent XOFF. FLOW CONTROL CHARACTER - XON Type: Register Format: AT [cmds] S22=n [cmds] Default: 17 Range: 0 - 127 Unit: 1 ASCII character Description: Sets the character used to represent XON. FLOW CONTROL - MODEM-TO-MODEM Type: Configuration Format: AT [cmds] &In [cmds] Description: Selects the type of modem-to-modem flow control used. Command Function &I0 Software flow control disabled. &I1 XON/XOFF pass-through enabled. &I2 XON/XOFF pass-through disabled. 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. INACTIVITY TIMER Type: Register Format AT [cmds] S19=n [cmds] Default: 0 Range: 0 - 255 Unit: 1 minute Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating hang-up process. 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. REPEAT PREVIOUS COMMAND CONTINUALLY Type: Immediate Format: A> Description: Repeats the previous command until interrupted by the user. Note: Do not precede this command with AT, or follow it with . 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. TEST PATTERN Type: Register Format: AT [cmds] S16=n [cmds] Description: Transmits a test pattern to the remote modem. Command Function S16=0 Test pattern disabled. S16=4 Test pattern 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. A value of 255 means that the modem will only accept connections with V.32 at 9600bps. V.34 MAPPING Type: Register 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. V.34 OPTIONS Type: Register Format: AT [cmds] S33=n [cmds] Default: 0 Range: 0 - 255 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.