PRACTICAL PERIPHERALS, INC. PC PCMCIA 144, PC PCMCIA 144 EZ-PORT Card Type Modem (asynchronous) Chip Set Unidentified Maximum Modem Rate 14.4Kbps Maximum Fax Rate 14.4Kbps Data Modulation Protocol Bell 103/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis Fax Modulation Protocol ITU-T V.17, V.27ter, V.29 Error Correction/Compression MNP5, V.42, V.42bis Fax Class Class I & II Data Bus PCMCIA 54796 SUPPORTED COMMAND SET Basic AT Commands AT, ‘+++’, A/ A, D, E, F, H, M, V, W, X, Y, Z &A, &V, &W, &Y, &Z S Registers S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30, S36, S37, S38, S46, S48, S82, S86, S95, S99, S108, S109, S110, 201 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 Originate or answer: handshake only at speed in S37 N1 Negotiate highest common speed starting in S37 CODE MODULATION Type: Immediate Format: AT [cmds] &Un Description: Control trellis code modulation Command Function &U0 Trellis coding enabled &U1 Trellis coding disabled COMMUNICATIONS MODE Type: Configuration Format: AT [cmds] &Qn [cmds] Description: Selects communications mode options Command Mode &Q0 Asynchronous mode &Q4 Auto-synchronous mode &Q5 Error correction mode &Q6 Buffered asynchronous mode &Q8 MNP mode &Q9 V.42bis data compression enabled, MNP5 disabled COMMUNICATION PROTOCOLS Type: Configuration Format: AT [cmds] Bn [cmds] Description: Selects the communication protocol for data calls Note: The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols. Command Protocol B0 ITU-T V.22 at 300 or 1200bps B1 Bell 212A at 300 or 1200bps B15 ITU-T V.21 at 300bps B16 Bell 103 at 300bps DATA CARRIER DETECT (DCD) Type: Configuration Format: AT [cmds] &Cn [cmds] Description: Selects whether the DCD option is enabled or disabled Command Function &C0 DCD enabled &C1 DCD enabled after carrier signal detected &C2 DCD on except during disconnect DATA TERMINAL READY (DTR) Type: Configuration Format: AT [cmds] &Dn [cmds] Description: Selects modem response to DTR Note: The action each variant of &D causes depends on the setting of &Q Command Function &D0 Modem does not respond to DTR &D1 Modem goes to command mode after DTR goes is off &D2 Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled. &D3 Modem is initialized after DTR goes off DIAL UP MODE Type: Configuration Format: AT [cmds] &Ln [cmds] Description: Sets the dial up mode Command Line Type &L0 Select dial up mode DATA SET READY (DSR) Type: Configuration Format: AT [cmds] &Sn [cmds] Description: Selects DSR options Command Function &S0 DSR forced high FACTORY DEFAULT PROFILE Type: Configuration Format: AT [cmds] &F [cmds] Description: Sets values in active profile to values found in the default profile Command Function &F0 Hays-compatible settings &F1 IBM-compatible settings &F2 Macintosh software handshake settings &F3 Macintosh hardware handshake settings FLOW CONTROL Type: Configuration Format: AT [cmds] &Kn [cmds] Description: Enables flow control options Command Function &K0 Flow control disabled &K1 RTS to CTS flow control enabled &K2 XON/XOFF flow control enabled &K3 RTS/CTS flow control enabled &K4 XON/XOFF flow control enabled GUARD TONE Type: Configuration Format: AT [cmds] &Gn [cmds] Description: Commands the modem to transmit a guard tone in V.22/V.22bis Note: Used primarily for international data transmission Command Function &G0 Guard tone disabled HELP Type: Configuration Format: AT [cmds] $Hn [cmds] Description: Displays the help templates for the $ commands ON-LINE Type: Immediate Format: AT [cmds] On [cmds] Description: Controls on-line command (data transmission) state options. Note: The O command must be placed at the end of the command string. Command Function O0 On-line command mode with no retraining enabled O1 On-line command mode with retraining enabled O3 On-line command mode with rate negotiation REPORT INFORMATION Type: Immediate Format: AT [cmds] In [cmds] Description: Displays information requested Command Function I0 Reports modem product code I1 Reports ROM checksum I2 Reports OK or ERROR I3 Reports modem firmware revision number I4 Reports a number series representing feature bit map I6 Reports data connection information RESULT CODES Type: Configuration Format: AT [cmds] Qn [cmds] Description: Enables modem to send result codes to the DTE Command Function Q0 Result code sending enabled Q1 Result code sending disabled Q2 Result code sending in originate mode only SPEAKER VOLUME Type: Configuration Format: AT [cmds] Ln [cmds] Description: Command is included for compatibility only, it performs no function. 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 &B2 Auto-retrain enabled disconnect if no line improvement over period indicated in S7 S(status) -REGISTERS DCE SPEED Type: Register Format AT [cmds] S43=n [cmds] Description: Displays the current DCE speed DCE LINE SPEED Type: Register Format AT [cmds] S37=n [cmds] Description: Sets the maximum allowable data exchange rate attempted during handshake process. Command Function S37=0 Speed of last connection S37=1 75bps S37=2 110bps S37=3 300bps S37=4 600bps S37=5 1200bps S37=6 2400bps S37=7 4800bps S37=8 7200bps S37=9 9600bps S37=10 12.0Kbps S37=11 14.4Kbps CIRCUIT CARRIER LEVEL Type: Register Format: AT [cmds] S63=n [cmds] Range: 0-15dBm Description: Private circuit carrier level selection AUTOMODE AND PROBE TIMING Type: Register Format: AT [cmds] S97=n [cmds] Default: 30 Range: 15-70 Unit: 0.1 seconds Description: V.32 Automode. V.22/V.22bis Probe Timing DISTINCTIVE RING Type: bit map Format: AT [cmds] S101=n [cmds] Default: 00 Range: 0-255 Unit: bit map Description: Selects distinctive ring setting PACKET SIZE Type: Register Format AT [cmds] S136=n [cmds] Default: 1 Range: 0-2 Description: Selects LAPM packet size