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PC PCMCIA 288, PC PCMCIA 288 EZ-PORT
PRACTICAL PERIPHERALS, INC.
PC PCMCIA 288, PC PCMCIA 288 EZ-PORT
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Card Type
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Modem (asynchronous)
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Chip Set
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Unidentified
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Maximum Modem Rate
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28.8Kbps
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Maximum Fax Rate
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14.4Kbps
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Data Modulation Protocol
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Bell 103/212A
ITU-T V.34, V.32bis, V.32, V.22bis, V.22, V.21, V.FC
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Fax Modulation Protocol
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ITU-T V.17, V.27ter, V.29
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Error Correction/Compression
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MNP5, V.42, V.42bis
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Fax Class
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Class I & II
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Data Bus
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PCMCIA
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54792
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SUPPORTED COMMAND SET
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Basic AT Commands
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AT, ‘+++’, A/
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A, D, E, H, M, V, W, X, Y, Z
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&A, &G, &S, &V, &W, &Y, &Z
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S Registers
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S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S30, S36, S37,
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S38, S46, S48, S82, S86, S95, S108, S109, S110
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Note: See MHI Help File for full command documentation.
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Proprietary AT Command Set
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AUTO-MODE DETECTION
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Type:
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Configuration
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Format:
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AT [cmds] Nn [cmds]
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Description:
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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.
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Command
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Function
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N0
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Auto-mode detection disabled
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í N1
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In originate mode, handshake begins at line speed designated by the S37 register. Modem can shift to a slower speed if necessary.
In answer mode, handshake attempted with the following protocols in order - V.FC, V.32bis, V.32, V.22bis, V.22 or Bell 212, V.21, and Bell 103
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COMMUNICATION PROTOCOLS
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Type:
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Configuration
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Format:
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AT [cmds] Bn [cmds]
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Description:
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Selects the communication protocol for data calls
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Note: The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols.
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Command
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Protocol
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B0
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ITU-T V.22 at 1200bps
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B1
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Bell 212A at 300 or 1200bps
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B15
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ITU-T V.21 at 300bps
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B16
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Bell 103 at 300bps
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COMMUNICATIONS MODE
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Type:
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Configuration
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Format:
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AT [cmds] &Mn [cmds]
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Description:
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Selects communications mode
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Command
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Mode
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í &M0
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Asynchronous mode
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COMMUNICATIONS MODE
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Type:
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Configuration
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Format:
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AT [cmds] &Qn [cmds]
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Description:
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Selects communications mode options
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Command
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Mode
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í &Q0
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Asynchronous mode, serial port speed follows connect speed.
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&Q4
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Hayes AutoSync mode
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&Q5
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Error correction mode
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&Q6
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Buffered asynchronous mode
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&Q8
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MNP operational mode
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&Q9
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Conditional data compression
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DATA CARRIER DETECT (DCD)
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Type:
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Configuration
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Format:
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AT [cmds] &Cn [cmds]
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Description:
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Selects whether the DCD option is enabled or disabled
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Command
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Function
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í &C0
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DCD enabled
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&C1
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DCD enabled after carrier signal detected
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&C2
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DCD on except during disconnect
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DATA TERMINAL READY (DTR)
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Type:
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Configuration
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Format:
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AT [cmds] &Dn [cmds]
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Description:
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Selects modem response to DTR
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Note: The action each variant of &D causes depends on the setting of &Q
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Command
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Function
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í &D0
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Modem does not respond to DTR
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&D1
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Modem goes to command mode after DTR goes is off
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&D2
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Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.
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&D3
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Modem is initialized after DTR goes off
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FACTORY DEFAULT PROFILE
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Type:
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Configuration
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Format:
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AT [cmds] &F [cmds]
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Description:
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Sets values in active profile to values found in the default profile
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Command
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Function
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í &F0
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Restore factory default Hayes-compatible parameters
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&F1
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Restore factory default IBM-compatible parameters
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&F2
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Restore factory default Macintosh software handshake parameters
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&F3
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Restore factory default Macintosh hardware handshake parameters
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FLOW CONTROL
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Type:
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Configuration
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Format:
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AT [cmds] &Kn [cmds]
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Description:
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Enables flow control options
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Command
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Function
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&K0
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Flow control disabled
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&K3
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RTS/CTS flow control enabled
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&K4
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XON/XOFF flow control enabled
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HELP
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Type:
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Immediate
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Format:
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AT [cmds] $H
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Description:
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Accesses summary of the modem’s commands
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ON-LINE
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Type:
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Immediate
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Format:
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AT [cmds] On [cmds]
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Description:
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Controls on-line command (data transmission) state options.
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Note: The O command must be placed at the end of the command string.
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Command
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Function
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O0
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On-line command mode with no retraining enabled
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O1
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On-line command mode with retraining enabled
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O2
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On-line command mode with rate negotiation
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REPORT INFORMATION
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Type:
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Immediate
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Format:
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AT [cmds] In [cmds]
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Description:
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Displays information requested
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Command
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Function
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I0
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Reports modem model and speed
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I1
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Reports ROM checksum
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I2
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Performs a ROM checksum, reports OK, or ERROR
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I3
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Reports firmware revision number
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I4
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Reports modem feature availability
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I6
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Reports link statistics
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RESULT CODES
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Type:
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Configuration
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Format:
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AT [cmds] Qn [cmds]
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Description:
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Enables modem to send result codes to the DTE
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Command
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Function
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í Q0
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Result code sending enabled
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Q1
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Result code sending disabled
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Q2
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Modem returns result codes when originating a call, but does not return result codes from the answer mode.
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SPEAKER VOLUME
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Type:
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Configuration
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Format:
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AT [cmds] Ln [cmds]
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Description:
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Command is included for compatibility only. It performs no function
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TEST MODES
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Type:
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Immediate
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Format:
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AT [cmds] &Tn
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Description:
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Selects test options
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Command
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Function
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&T0
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End current test
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&T1
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Begin local analog loopback test
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&T3
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Begin local digital loopback
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&T4
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Grant remote digital loopback request
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&T5
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Deny remote digital loopback request
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&T6
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Request remote digital loopback
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&T7
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Request remote digital loopback and self-test
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&T8
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Begin local analog loopback and self-test
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&T19
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Perform RTS/CTS cable test
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TRELLIS CODE MODULATION
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Type:
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Immediate
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Format:
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AT [cmds] &U [cmds]
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Description:
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Controls trellis encoding
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Command
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Function
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&U0
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Enables trellis encoding
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&U1
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Disables trellis encoding
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V.32 - AUTO-RETRAIN
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Type:
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Configuration
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Format:
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AT [cmds] &Bn [cmds]
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Description:
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Controls auto-retrain function if poor line quality is detected
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Command
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Function
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í &B0
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Auto-retrain disabled modem hangs-up
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&B1
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Auto-retrain enabled if line quality is poor
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&B2
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Auto-retrain enabled, disconnect if line quality is poor
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S(status) -REGISTERS
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DCE SPEED
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Type:
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Register
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Format
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AT [cmds] S43 [cmds]
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Description:
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Displays the DCE speed of the current connection
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PACKET SIZE
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Type:
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Register
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Format
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AT [cmds] S136=n [cmds]
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Range:
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0-2
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Unit:
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frame size
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Description:
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Designates the LAP-M packet size
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PRIVATE CIRCUIT CARRIER LEVEL
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Type:
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Register
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Format
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AT [cmds] S63=n [cmds]
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Range:
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0-15
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Unit:
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-dBm
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Description:
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Controls the carrier power level in dBm for leased line operation.
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PROBE TIMING
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Type:
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Register
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Format:
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AT [cmds] S97=n [cmds]
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Description:
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Sets the duration of the signal used by the modem in answer mode during a V.32 automode handshake to determine if the calling modem is a V.22 or V.22bis type modem
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RING SETTINGS
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Type:
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Register
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Format:
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AT [cmds] S101=n [cmds]
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Range:
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0-255
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Unit:
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bit-mapped
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Description:
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Sets the distinctive ring setting
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