E-TECH RESEARCH, INC. C288MX PCMCIA Card Type Modem (asynchronous) Chipset Unidentified Maximum Data Rate 28.8Kbps Maximum Fax Rate 14.4Kbps Data Bus PCMCIA Type II Fax Class Class I & II Data Modulation Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34 AT&T V.32terbo Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis 53134 SUPPORTED STANDARD COMMANDS Basic AT Commands +++, ‘comma’, A/ A, B, D, E, H, L, M, N, P, Q, T, V, W, X, Y, Z &C, &D, &F, &G, &K, &L, &R, &S, &T, &V, &W, &Y, &Z Extended AT Commands \A, \B, \C, \G, \J, \K, \N, \Q, \T, \V, \X %A, %C, %G Special AT Commands "H, -J, "N, "O S-Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S22, S25, S26, S27, S30 Note: See MHI documentation for complete information. The functions of the O command and the S42 and S47 registers are unidentified. UNIDENTIFIED COMMANDS Command Default O N/A S42 Read-only Proprietary AT Command Set AUTO-RELIABLE FALLBACK CHARACTER Type: Register Format: AT [cmds] S43=n [cmds] Default: Read-only Range: 0-127 Unit: ASCII Description: Displays the ASCII value character used as the auto-reliable fallback character. AUTO-RELIABLE TIME BUFFER CONFIGURATION Type: Register (read-only) Format: AT [cmds] S48? [cmds] Description: Displays information regarding the handling of incoming data during auto-reliable time period. Value Meaning 0 Data is discarded. 1 Data is buffered for 4 seconds or 200 characters. 2 Data is discarded; modem returns to normal mode on receiving auto-reliable fallback character. BIT-MAPPED REGISTER S44 Format: AT [cmds] S44=n [cmds] Default: 6 Range: 0 - 23 Description: Controls V.42bis and auto-fallback/fall-forward. Bit Value Function 0 0 V.42bis enabled. 1 V.42bis disabled. 2, 1 00 V.42bis disabled. 01 V.42bis enabled on transmit only. 10 V.42bis enabled on receive only. 11 V.42bis enabled. 3 0 Not used. 4 0 Auto-fallback/fall-forward disabled. 1 Auto-fallback/fall-forward enabled. BIT-MAPPED REGISTER S51 Format: AT [cmds] S51? [cmds] Default: Read-only Range: 0 - 115 Description: Controls flow control, serial port speed, and XON/XOFF trapping. Bit Value Function 1, 0 00 Flow control disabled. 01 Bidirectional XON/XOFF flow control enabled. 10 CTS flow control by DCE enabled. 11 Bidirectional RTS/CTS flow control enabled. 3, 2 00 Not used. 4 0 Modem-to-modem flow control disabled. 1 Modem-to-modem flow control enabled. 5 0 Serial port speed locked. 1 Serial port speed follows connect speed. 6 0 XON/XOFF signals trapped by local modem. 1 XON/XOFF passed through local modem. BIT-MAPPED REGISTER S54 Format: AT [cmds] S54=n [cmds] Default: Unidentified Range: Unidentified Description: Controls extended result codes. Bit Value Function 1 - 0 N/A This function is unidentified. 6 - 2 00000 Not used. 7 0 Error correction and compression extended result codes disabled. 1 Error correction extended result codes enabled. BREAK TYPE Type: Register (read-only) Format: AT [cmds] S52? [cmds] Description: Returns a number indicating the modem’s action on a break signal. Value Break from DTE Modem receives \B Break received from remote modem 0 Online command Break sent to Buffers cleared, mode enabled, remote modem and break sent to send no break to buffered cleared. DTE. remote modem. 1 Break sent to Break sent to Buffers cleared, remote modem and remote modem and break sent to buffered buffered cleared. DTE. cleared. 2 Online command Send break to Break sent mode enabled, remote modem immediately to send no break to immediately. DTE. remote modem. 3 Send break to Send break to Break sent remote modem remote modem immediately to immediately. immediately. DTE. 4 Online command Send break with Break sent with mode enabled, transmitted data. received data to send no break to the DTE. remote modem. 5 Send break with Send break with Break sent with transmitted transmitted data. received data to data. the DTE. CONNECT MODE Type: Register, read-only Format: AT [cmds] S53? [cmds] Description: Returns a value indicating the type of connection the modem will make. Value Meaning 0 Normal mode enabled 1 Direct mode enabled 2 MNP reliable mode enabled 3 Auto-reliable mode or MNP auto-reliable mode enabled 4 V.42 auto-reliable mode or MNP auto-reliable mode enabled 5 V.42 reliable mode enabled DISPLAY INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested about the modem. Command Function I0 Displays product identification code. I1 Displays country code. I2 Displays OEM string. I4 Displays EPROM type. I5 Displays DSP chip version. I9 Displays flash ROM checksum. EXTENDED RESULT CODES Type: Register Format: AT [cmds] S41? [cmds] Description: Displays selection of which extended result codes will be displayed. Value Meaning 0 Enables CONNECT result codes to report DTE speed. If S95=0, then all extended connection result codes are disabled. 1 Enables CONNECT result codes to report DTE speed. If S95=0, then all CARRIER and PROTOCOL extended result codes are enabled. 2 Enables CONNECT result codes to report DCE speed. If S95=0, then all extended result codes are disabled. HDLC ADDRESS Type: Register Format: AT [cmds] S20=n [cmds] Default: 0 Range: 0-255 Unit: 1 ASCII character Description: Sets the HDLC address and BSC character. LINE SPEED Type: Register (read-only) Format AT [cmds] S37? [cmds] Description: Displays the maximum allowable data exchange rate attempted during handshake process. Command Function S37=0 Speed of last command. S37=3 Connect at 300bps. S37=5 Connect at 1200bps. S37=6 Connect at 2400bps. S37=7 Connect at 4800bps. S37=8 Connect at 7200bps. S37=9 Connect at 9600bps. S37=10 Connect at 12Kbps. S37=11 Connect at 14.4Kbps. S37=12 Connect at 16.8Kbps. S37=13 Connect at 19.2Kbps. S37=14 Connect at 21.6Kbps. S37=15 Connect at 24Kbps. S37=16 Connect at 26.4Kbps. S37=17 Connect at 28.8Kbps. LOCAL SERIAL PORT SPEED Type: Register (read-only) Format: AT [cmds] S62? [cmds] Description: Returns a value indicating the speed of the local serial port. Value Meaning 0 Serial port speed set to 300bps. 1 Serial port speed set to 600bps. 2 Serial port speed set to 1200bps. 3 Serial port speed set to 2400bps. 4 Serial port speed set to 4800bps. 5 Serial port speed set to 7200bps. 6 Serial port speed set to 9600bps. 7 Serial port speed set to 12Kbps. 8 Serial port speed set to 14.4Kbps. 9 Serial port speed set to 16.8Kbps. 10 Serial port speed set to 19.2Kbps. 11 Serial port speed set to 21.6Kbps. 12 Serial port speed set to 24Kbps. 13 Serial port speed set to 26.4Kbps. 14 Serial port speed set to 28.8Kbps. 15 Serial port speed set to 38.4Kbps. 16 Serial port speed set to 57.6Kbps. 17 Serial port speed set to 115.2Kbps. MAXIMUM BLOCK SIZE FOR TRANSMISSION Type: Register (read-only) Format: AT [cmds] S49? [cmds] Description: Displays the maximum transmittable block size in MNP mode. Value Meaning 0 MNP block size is 64 characters 1 MNP block size is 128 characters 2 MNP block size is 192 characters 3 MNP block size is 256 characters MNP MODE Type: Register Format: AT [cmds] S59=n [cmds] Description: Controls MNP mode. Command Function S59=0 MNP5 compression disabled. S59=1 MNP5 compression enabled. MODE OF OPERATION Type: Register Format: AT [cmds] S50? [cmds] Description: Returns a value indicating the modem’s current operating mode. Value Meaning 0 Modem is in data mode. 1 Modem is in fax mode. ROUND TRIP DELAY Type: Register Format: AT [cmds] S65=n [cmds] Default: Read-only Range: Unidentified Unit: .1 second Description: The function of this register is unidentified. SLEEP TIMER Type: Register Format AT [cmds] S46=n [cmds] Default: 255 Range: 0-255 Unit: .1 second Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode. Setting S46 to 255 disables this feature. SLEEP TIMER Type: Register Format AT [cmds] S47=n [cmds] Default: 255 Range: 0-255 Unit: Unidentified Description: Maximum duration of DTE and DCE inactivity allowed prior to initiating power-down sleep mode. Setting S47 to 255 disables this feature. V.42bis DICTIONARY SIZE Type: Register (read-only) Format: AT [cmds] S57? [cmds] Description: Returns a value indicating the V.42bis dictionary size. Value Meaning 0 512 byte dictionary selected. 1 1024 byte dictionary selected. 2 1536 byte dictionary selected. V.42bis MAXIMUM STRING LENGTH Type: Register Format: AT [cmds] S58=n [cmds] Default: 32 Range: 6-64 Unit: 1 ASCII character Description: Sets the maximum string size for V.42bis compression.