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ZyXEL Communications Omni 288S User Manual

Page 104

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Chapter 11 - AT Command Set Summaries

11-6

Command

Options

Function & Description

Ref.

&R0

CTS tracks RTS, response delay is set in S26

&R1 *

Ignore RTS, assumes RTS always ON

&Sn

Data Set Ready (DSR) function selection.

S21.3

&S0 *

DSR overridden, DSR always ON.

&S1

DSR according to CCITT (ITU-TSS). (See also S41.5,
S44.4)

&Tn

Modem testing.

&T0

Terminate test in progress.

&T1

Initiate Analog Loop-back (ALB) test.

&T3

Initiate Local Digital Loop-back (LDL) test

&T4

Grant Remote Digital Loop-back request from remote
modem

&T5

Deny Remote Digital Loop-back request from remote
modem

&T6

Initiate Remote Digital Loop-back (RDL) test

&T7

Initiate Remote Digital Loop-back with self test
(RDL+ST)

&T8

Initiate Analog Loop-back with self test. (ALB+ST)

&Vn

View profile settings.

&V0

View current active settings.

&Vn

View the (n-1) user profile settings (n=1-4)

&V5

View factory default settings.

&Wn

n=0-3

Write current settings to user profile n in non-volatile
RAM. (See also S35.6)

&Xn

Synchronous mode timing (clock) source selection

S14.4-5

&X0 *

Modem provides synchronous transmit clock signal
(Internal clock to pin 15 of EIA-232D)

&X1

Terminal provides synchronous transmit clock signal
(External clock from pin 24 of EIA-232D)

&X2

Received carrier provides synchronous transmit clock
signal (Remote or Slave clock to pin 15 of EIA-232D)

&Yn

Break handling. Destructive Break clears the buffer.
Expedited Break is sent immediately to the remote
system. (For internal modem only.)

S28.2-3

&Y0

Destructive, expedited.

&Y1 *

Nondestructive, expedited.

&Y2

Nondestructive, unexpedited.

&Z?

Display all the phone numbers stored in non-volatile
RAM.

&Zn=s

n=0-39

Write phone number/s to NVRAM at location n (n=0-
39) use AT*Dn or ATS29=n to set the default dial
pointer.