MAXTECH CORPORATION PCM228A (ATTHSM288/PCM288A) Card Type Modem/Fax card Chip Set Unidentified Maximum Modem Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Modulation Protocol Bell 103/212A ITU-T V.22bis, V.22, V.23, V.32, V.32terbo, V.32bis, V.34 Fax Modulation Protocol ITU-T V.27ter, V.29, V.21 Error Correction/Compression MNP5, V.42bis Fax Class Class I Data Bus PCMCIA 54705 SUPPORTED COMMAND SET Basic AT Commands AT, +++, A/ A, E, H, M, P, Q, T, V, W, X, Y, Z &C, &F, &G, &T, &V, &W, &Y, &Z Extended AT Commands \A, \B, \C, \G, \J, \K, \V, \X %A, %G "O, "H -J S Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S25 S26, S27, S30, S37, S40, S46 Note: See MHI Help File for full command documentation. PROPRIETARY AT COMMAND SET AUTO-MODE DETECTION Type: Configuration Format: AT [cmds] Nn [cmds] Description: Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed. Command Function N0 Auto-mode detection disabled N1 Auto-mode detection enabled COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Mn [cmds] Description: Selects communications mode Command Mode &M0 Asynchronous mode &M4 Hayes auto-synchronous mode COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Qn [cmds] Description: Selects communications mode options Command Mode &Q0 Asynchronous mode, serial port speed follows connect speed. &Q4 Auto-synchronous mode COMMUNICATION PROTOCOLS Type: Configuration Format: AT [cmds] Bn [cmds] Description: Selects the communication protocol for data calls Command Protocol B0 CCITT mode B1 Bell mode B2 ITU-T V.23 originate mode; 75bps transmit, 1200bps receive B3 ITU-T V.23 originate mode; 1200bps transmit, 75bps receive DATA SET READY (DSR) Type: Configuration Format: AT [cmds] &Sn [cmds] Description: Selects DSR options Command Function &S0 DSR forced high &S1 DSR high only while modem is handshaking or connected DATA TERMINAL READY (DTR) Type: Configuration Format: AT [cmds] &Dn [cmds] Description: Selects modem response to DTR Command Function &D0 DTR override &D1 DTR toggle causes online command mode &D2 Normal DTR operations &D3 Resets on receipt of DTR DIAL Type: Immediate Format: AT [cmds] D<#> [cmds] Description: Dials telephone number according to any modifiers included in the string Note: Any combination of modifiers can be used to produce the desired dial functions in sequence. Command Function DP Pulse dialing enabled DR Answer mode enabled; originate mode disabled following handshake initiation. DS=n Dial stored telephone number n DT Tone dialing enabled/Pulse dialing disabled DW Dialing resumed following dial tone detection D, Dialing paused for amount of time specified in S8 register D! Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook. D@ Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by 5 seconds of silence D; Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command. FLOW CONTROL Type: Configuration Format: AT [cmds] &Kn [cmds] Description: Enables flow control options Command Function &K0 Flow control disabled &K3 RTS/CTS flow control enabled &K4 XON/XOFF flow control enabled LINE TYPE Type: Configuration Format: AT [cmds] &Ln [cmds] Description: Selects line type Command Line Type &L0 Switched line (PSTN/Dial-up) ON-LINE Type: Immediate Format: AT [cmds] On [cmds] Description: Controls on-line command (data transmission) state options. Command Function O0 On-line command mode with no retraining enabled O1 On-line command mode with retraining enabled O3-O13 On-line command mode with new user defined rate as specified by register S62 PULSE DIALING RATIO Type: Configuration Format: AT [cmds] &Pn [cmds] Description: Selects pulse dial make/break ratio Command Function &P0 39/61ms at 10pps (North America) &P1 33/67ms at 10pps (Europe) REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports four digit product code I1 Reports ROM checksum I2 Reports internal memory test I3 Reports firmware ID I4 Reserved RTS/CTS Type: Configuration Format: AT [cmds] &Rn [cmds] Description: Selects RTS/CTS options Command Function &R0 Reserved &R1 CTS forced high, RTS is ignored. SPEAKER VOLUME Type: Configuration Format: AT [cmds] Ln [cmds] Description: Controls speaker volume Command Function L0 Low volume setting L1 Low volume setting L2 Medium volume setting L3 Highest volume setting V.32 - AUTO-RETRAIN Type: Configuration Format: AT [cmds] &Bn [cmds] Description: Controls auto-retrain function if poor line quality is detected Command Function &B0 Auto-retrain disabled modem hangs-up &B1 Auto-retrain enabled if line quality is poor. Hang-up after reaching threshold set in register S7 &B2 Tolerate any line quality EXTENDED AT COMMAND SET COMPRESSION Type: Configuration Format: AT [cmds] %Cn [cmds] Description: Selects data compression Command Function %C0 Data compression disabled %C1 MNP5 enabled CONNECT MODE Type: Configuration Format: AT [cmds] \Nn [cmds] Description: Controls the type of connection the modem will operate in Command Function \N0 Normal mode enabled \N1 Direct mode enabled \N2 Reliable mode enabled \N3 Auto-reliable mode enabled \N4 V.42 reliable mode enabled FIRMWARE Type: Configuration Format: AT [cmds] -Vn [cmds] Description: Display modem firmware virsion FLOW CONTROL TYPE Type: Configuration Format: AT [cmds] \Qn [cmds] Description: Sets type of flow control used by modem Command Function \Q0 Flow control disabled \Q1 Bi-directional XON/XOFF flow control enabled \Q2 CTS flow control by DCE enabled \Q3 Bi-directional RTS/CTS flow control enabled INACTIVITY TIMER Type: Configuration Format: AT [cmds] \Tn [cmds] Range: 0-90 Unit: 1 second Description: Sets the length of time that the modem does not receive information before it disconnects. V.42bis - DICTIONARY SIZE Type: Configuration Format: AT [cmds] "Nn [cmds] Description: Select V.42 dictionary size Command Function "N0 Select 512 bytes "N1 Select 1024 bytes "N2 Select 1536 bytes S (STATUS) REGISTERS AUTOMATIC FALLBACK Type: Register Format AT [cmds] S43=n [cmds] Range: 0-127 Unit: ASCII Description: Sets automatic fallback character. Default=13 AUTORELIABLE BUFFER Type: Register Format AT [cmds] S48=n [cmds] Range: 0-2 Unit: Unidentified Description: Controls autoreliable buffer BIT-MAPPED REGISTER S19 Format AT [cmds] S19=n [cmds] Unit: Bit-mapped Description: Controls autosync options. Default=26 BIT-MAPPED REGISTER S20 Format AT [cmds] S20=n [cmds] Range: 0-255 Unit: Bit-mapped Description: Controls autosync HDLC address. Default=255 BIT-MAPPED REGISTER S44 Format AT [cmds] S44=n [cmds] Unit: Bit-mapped Description: Determines V.42bis status and automatic fall forward/fallback. Default=7 BIT-MAPPED REGISTER S51 Format AT [cmds] S51=n [cmds] Unit: Bit-mapped Description: Determines flow control options. Default=3 BIT-MAPPED REGISTER S54 Format AT [cmds] S54=n [cmds] Unit: Bit-mapped Description: Determines V.23, error correction result code BREAK OPTION Type: Register Format AT [cmds] S52=n [cmds] Range: 0-5 Unit: Unidentified Description: Controls break options. Default=5 BTLZ OPTIONS Type: Register Format AT [cmds] S58=n [cmds] Range: 6-64 Unit: Bytes Description: Sets BTLZ string length. Default=32 CONNECT MESSAGE Type: Register Format AT [cmds] S41=n [cmds] Range: 0-2 Unit: Unidentified Description: Determines connect message. Default=0 DTE RATE SELECTION Type: Register Format AT [cmds] S72=n [cmds] Range: 0-18 Unit: Unidentified Description: Selects DTE rate DTE RATE STATUS Type: Register Format AT [cmds] S62=n [cmds] Range: 0-17 Unit: Unidentified Description: Determines DTE rate status. Default=16 MNP5 ERROR CORRECTION Type: Register Format AT [cmds] S59=n [cmds] Range: 0-1 Unit: Unidentified Description: Sets MNP5 error correction POWER-UP PROFILE Type: Register Format AT [cmds] S98=n [cmds] Range: 0, 1 Unit: Unidentified Description: Sets power-up profile ROUND TRIP DELAY Type: Register Format AT [cmds] S65=n [cmds] Range: Unidentified Unit: .1second Description: Sets round trip time delay. Default=100 SLEEP TIMER/PCMCIA Type: Register Format AT [cmds] S47=n [cmds] Range: 0-255 Unit: Unidentified Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode. V.32 RETRAIN Type: Register Format AT [cmds] S42=n [cmds] Range: 0-2 Unit: Unidentified Description: Controls V.32 retrain. Default=1 V.42bis DICTIONARY SIZE Type: Register Format AT [cmds] S57=n [cmds] Range: 0-2 Unit: Unidentified Description: Sets the maximum V.42bis dictionary size. Default=2 V.42 MAXIMUM BLOCK SIZE Type: Register Format AT [cmds] S49=n [cmds] Range: 63, 127, 191, 255 Unit: Unidentified Description: Sets the maximum block size in V.42 mode. Default=255 V.42/MNP/NORMAL MODES Type: Register Format AT [cmds] S53=n [cmds] Range: 0-4 Unit: Unidentified Description: Controls V.42/MNP/Normal modes. Default=3