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C524FM/Z324FM/Z524FM

MEGAHERTZ CORPORATION

C524FM/Z324FM/Z524FM

Modem Type

Data (synchronous/asynchronous)/Fax/Voice

Maximum Data Rate

2400bps

Maximum Fax Rate

9600bps

Data Bus

Internal

Fax Class

Class I & II

Data Modulation Protocol

Bell 103A/212A

ITU-T V.21, V.22, V.22bis

Fax Modulation Protocol

ITU-T V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

V1287

Proprietary AT Command Set

ACCEPT RELIABLE MODE

Type:

Immediate

Format:

AT [cmds] \U [cmds]

Example:

AT \U B1<CR>

Description:

Accepts remote modem’s request for reliable link.

AUTO-RELIABLE FALLBACK CHARACTER

Type:

Register

Format:

AT [cmds] %An [cmds]

Example:

AT %A20 <CR>

Default:

Unidentified

Range:

0 - 127

Unit:

ASCII

Description:

Sets the character used as the auto-reliable fallback character. %A0 will disable this function.

AUTO-RELIABLE TIME BUFFER CONFIGURATION

Type:

Configuration

Format:

AT [cmds] \Cn [cmds]

Example:

AT \C1 &W<CR>

Description:

Controls the handling of incoming data during auto-reliable time period.

Command

Function

» \C0

Data is discarded.

\C1

Data is buffered.

\C2

Data is discarded, modem returns to normal mode on receiving auto-reliable fallback character.

AUTO-RETRAIN

Type:

Configuration

Format:

AT %En

Example:

AT %E1 <CR>

Description:

Selects auto-retrain mode.

Command

Function

%E0

Auto-retrain enabled.

%E1

Auto-retrain disabled.

BIT-MAPPED REGISTER S14

Format

AT [cmds] S14=n [cmds]

Example:

AT S14=170 <CR>

Default:

170

Range:

0 - 190

Unit:

Bit-mapped

Description:

Controls command echo, result codes, dialing mode, and answer/originate mode.

Bit

Value

Function

0

0

Not used.

1

0

1

Command echo off.

Command echo on.

2

0

1

Result codes enabled.

Result codes disabled.

3

0

1

Numeric result codes.

Verbose result codes.

4

1

Not used.

5

0

1

Tone dialing selected.

Pulse dialing selected.

6

0

Not used.

7

0

1

Answer mode selected.

Originate mode selected.

BREAK SEND

Type:

Configuration

Format:

AT [cmds] \Bn [cmds]

Example:

AT \B3 &W<CR>

Range:

1-9

Unit:

.1 second

Description:

Sends break to modem.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K1 <CR>

Description:

Configures action of break signal.

Command

Break from DTE

Modem receives \B

Break received from remote modem

\K0

Online command mode enabled, send no break to remote modem.

Break sent to remote modem and buffered cleared.

Buffers cleared, break sent to DTE.

\K1

Break sent to remote modem and buffered cleared.

Break sent to remote modem and buffered cleared.

Buffers cleared, break sent to DTE.

\K2

Online command mode enabled, send no break to remote modem.

Send break to remote modem immediately.

Break sent immediately to DTE.

\K3

Send break to remote modem immediately.

Send break to remote modem immediately.

Break sent immediately to DTE.

\K4

Online command mode enabled, send no break to remote modem.

Send break with transmitted data.

Break sent with received data to the DTE.

\K5

Send break with transmitted data.

Send break with transmitted data.

Break sent with received data to the DTE.

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Example:

AT *EC0 %C1 *AP0<CR>

Description:

Selects data compression.

Command

Function

%C0

Data compression disabled.

%C1

Data compression enabled.

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Example:

AT \N1 DT555-1212<CR>

Description:

Sets connect mode.

Command

Function

\N1

Normal mode.

\N0

Direct mode.

\N2

Reliable mode.

\N3

Auto-reliable mode.

CONVERT TO RELIABLE MODE

Type:

Immediate

Format:

AT [cmds] \Y [cmds]

Example:

AT \Y <CR>

Description:

Initiates reliable mode link.

DIAL STORED PHONE NUMBER

Type:

Immediate

Format:

AT [cmds] Dn

Example:

AT M0 D3 <CR>

Description:

Dials a stored phone number.

DISPLAY CURRENT COMMAND STATUS

Type:

Immediate

Format:

AT [cmds] \S [cmds]

Example:

AT &Z2=9W1-303-555-1212 \S<CR>

Description:

Displays current setting of modem commands.

DISPLAY STORED NUMBERS

Type:

Immediate

Format:

AT [cmds] \F? [cmds]

Example:

AT \P2=9W1-303-555-1212 \F?<CR>

Description:

Displays all stored phone numbers.

ECHO DATA

Type:

Configuration

Format:

AT [cmds] \En [cmds]

\Example:

AT \E0 <CR>

Description:

Enables modem to echo received data.

Command

Function

\E0

Data echo disabled.

\E1

Data echo enabled.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] \Vn [cmds]

Example:

AT \V1 %C1<CR>

Description:

Selects MNP result codes.

Command

Function

\V0

MNP result codes disabled.

\V1

MNP result codes enabled.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Example:

AT G1 &K3<CR>

Description:

Selects modem port flow control.

Command

Function

\G0

Flow control disabled.

\G1

Flow control enabled.

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Example:

AT \Q5 <CR>

Description:

Sets type of flow control used by modem.

Command

Function

\Q0

Flow control disabled.

\Q1

Bidirectional XON/XOFF flow control enabled.

\Q2

CTS flow control by DCE enabled.

\Q3

Bidirectional CTS/RTS flow control enabled.

\Q4

XON/XOFF flow control by DCE enabled.

INACTIVITY TIMER

Type:

Register

Format:

AT [cmds] \Tn [cmds]

Example:

AT \T5 <CR>

Default:

0

Range:

0-255

Unit:

1 second

Description:

Sets the length of time that the modem does not receive information before it disconnects.

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] \Jn [cmds]

Example:

AT %L3 %B14 \J0 <CR>

Description:

Sets operation of serial port speed.

Command

Function

\J0

Serial speed locked.

\J1

Serial speed follows connect speed.

MAXIMUM BLOCK SIZE FOR TRANSMISSION

Type:

Configuration

Format:

AT [cmds] \An [cmds]

Example:

AT \A3 %C1 <CR>

Description:

Sets the maximum transmittable block size.

Command

Function

\A0

Maximum MNP block size is 64 characters.

\A1

Maximum MNP block size is 128 characters.

\A2

Maximum MNP block size is 192 characters.

\A3

Maximum MNP block size is 256 characters.

MODEM STATUS

Type:

Immediate

Format:

AT [cmds] \S [cmds]

Example:

AT \S &W<CR>

Description:

Display modem status.

ON-LINE IN RELIABLE MODE

Type:

Immediate

Format:

AT [cmds] \On

Example:

AT \O <CR>

Description:

Returns to on-line and requests reliable mode connection.

REDIAL

Type:

Immediate

Format:

AT [cmds] DL

Example:

AT M1 DL <CR>

Description:

Redials the last number dialed.

REPORT PRODUCT VERSION

Type:

Immediate

Format:

AT [cmds] %V [cmds]

Example:

AT I3 &V1 %V <CR>

Description:

Reports product version.

RETURN TO RELIABLE MODE

Type:

Immediate

Format:

AT [cmds] \Z [cmds]

Example:

AT \Z <CR>

Description:

Ends reliable mode link, initiate return to normal mode.

STORE PHONE NUMBER IN NVRAM

Type:

Configuration

Format:

AT [cmds] \Pn=<#>

Example:

AT \P2=9W1-303-555-1212 \F?<CR>

Description:

Stores a phone number in the modem’s memory.

XON/XOFF PASS-THROUGH

Type:

Configuration

Format:

AT [cmds] \Xn [cmds]

Example:

AT \X0 O <CR>

Description:

Selects whether XON/XOFF signals are sent to remote modem.

Command

Function

\X0

XON/XOFF signals trapped by local modem.

\X1

XON/XOFF passed through local modem.