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Motorola 326X V.34 User Manual

Page 137

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Configuration Quick Reference A-15

C

onfiguration

Q

uick-Reference

AT

*

AS1

=Always

A dial call is always answered. As soon as the dial call is answered, the leased line connection
is dropped (with auto-answering, the leased line is dropped after the correct number of rings).
If training on the dial line fails, the modem returns to the leased line.

AT

*

AY0

Auto Type

=CCITT

Auto Type

During answer-back tone, the modem attempts to negotiate a connection in the V.32
modulation mode. As soon as answer-back tone ends, if a V.32 tone has not been detected
during ABT, the modem attempts to negotiate a connection in the V.22bis modulation mode.

AT

*

AY1

=Codex

During answer-back tone, the modem attempts to negotiate a connection in the V.32
modulation mode. After sending answer-back tone, the modem continues to attempt to
negotiate a connection in the V.32 modulation mode. If unsuccessful, the modem tries to
negotiate a connection in the V.22bis modulation mode.

Blind Dial

Blind Dial

Determines the time the modem waits before dialing; once time has expired, the modem dials
without waiting for a dial tone.

AT

*

BD0

=2

The modem waits 2 seconds before dialing.

AT

*

BD1

=4

The modem waits 4 seconds before dialing.

AT

*

BD2

=S6

The modem waits the amount of time specified by S-Register 6 before dialing.

Break

Break Handling

Controls how the modem handles the break signal in reliable and auto-reliable data modes.
Break signals are sent to the DTE for the duration specified in S-Register 97.

AT

*

BK0

=Destruct

The modem uses destructive and expedited break handling. It passes the break to the remote
site immediately and deletes all data from its buffers. NOTE: Destructive breaks reinitialize
data compression tables for MNP-5 and V.42bis.

AT

*

BK1

=Expedited

The modem uses nondestructive and expedited break handling. It passes the break to the
remote site immediately without deleting data from its buffers.

AT

*

BK2

=Standard

The modem uses standard break handling. It passes the break to the remote site in sequence
with any transmit data from its buffers.

AT

*

CA0

Mode

=Orig

Answer/Originate Mode

The modem operates as an originating modem in a manual answer/dial application.

AT

*

CA1

=Answer

The modem operates as an answer modem in a manual answer/dial application.

AT

*

CA2

=External

The signal from the DTE on EIA/TIA 232-D Pin 11 determines whether the modem is in
answer or originate mode. If the signal is off, the modem is in originate mode; if the signal is
on, the modem is in answer mode

AT

*

CA3

=Auto A in O

The modem configures itself as an originating modem after auto-answering a call. In leased-
line operation, the modem functions as if it is set to originate calls. NOTE: The functions
provided by this setting only apply when the modem auto-answers.

AT

*

CD0

DCD Loss Dis

=Off

DCD Loss Disconnect

The modem will not disconnect due to loss of carrier.

AT

*

CD1

=3 s

The modem hangs up if it loses carrier for 3 seconds.

AT

*

CD2

=7 s

The modem hangs up if it loses carrier for 7 seconds.

AT

*

CD3

=S10

The modem checks the value stored in S-Register 10 to determine when it disconnects due to
loss of carrier. See the “S-Registers” section in Chapter 5 for more information.

Table A-1.
AT Commands, Cross-Referenced to Front Panel Options (Continued)

AT
Command

Parameter &
Option

Description

Gray shading indicates country-specific options. See Appendix C for your country’s options.