Class 1 command set – ZyXEL Communications U-336SA User Manual

Page 81

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Fax Operation 67

Several revisions of the class 2 standard exist. Implementations
conforming to different revisions may not work together. A formally
approved version is the Class 2.0 command set, also called the TIA-
592 standard.

Class 1 Command Set

Command

Value Description

+FCLASS=n

Service class selection

n=0

Set to Data mode

n=1

Set to Class 1 mode

n=2

Set to Class 2 mode

n=2.0 Set to Class 2.0 mode

n=6

Set to ZFAX mode

n=8

Set to Voice mode

ON

OTE

:

I

F

S57.4=0 (

DEFAULT

),

THE RESPONSE TO THE

+FCLASS=?

COMMAND WILL

NOT REPORT

C

LASS

1

CAPABILITY

. T

HIS IS DUE TO THE FACT THAT SOME FAX

SOFTWARE PACKAGES MAY GET CONFUSED BY THIS RESPONSE

.

Command

Value Description

+FTS=n

0-255 Stop transmission and pause, in 10 ms

units.

+FRS=n

0-255 Wait for silence, in 10 ms units.

+FTM=<MOD>

Transmit data with <MOD> carrier.

+FRM=<MOD>

Receive data with <MOD> carrier.

+FTH=<MOD>

Transmit HDLC data with <MOD>
carrier.

+FRH=<MOD>

Receive HDLC data with <MOD>
carrier.

The <MOD> parameter for the preceding commands take the following
values:

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