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AT Commands and S-Registers

B-15

Issue 3 October 1995

Table B-1. AT Command and S-Register List (15 of 21)

AT Command/

S-Register

Description

SELECT FACTORY DEFAULT CONFIGURATION

OPTIONS

&F, &F0 Loads Factory 0 configuration options

into Active memory.

&F1 Loads Factory 1 configuration options into

Active memory.

Factory default settings (&F0) are indicated by bold

type in this table. &F1 settings differ only for the L

and &C

options, and are shown in those sections of

this appendix.

V.22BIS AND V.22 GUARD TONE

Determines the nature of the V.22bis and V.22 Guard

Tone.

&G, &G0 Disable

&G1 Disable

&G2 1800 Hz guard tone

NOTE: The ability to change this value is mandatory

in some countries; it is not used in North America.

FLOW CONTROL

Determines the flow control settings for data passed

between the computer and the DataPort PCX

modem.

&K, &K0 Disables hardware and software flow

control.

&K3 Enables RTS/CTS (hardware) flow

control.

&K4 Enables XON/XOFF (software) flow control.

&K5 Transparent XON/XOFF (software) flow

control. (XON and XOFF characters are

passed from DTE to DTE.)

&K6 Enables both XON/XOFF and RTS/CTS

flow control. (Default for fax modes.)

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