Error control commands, Es - error control and synchronous mode selection, Syntax – Longshine LCS-8056C2 User Manual

Page 60: Defined values

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Commands for Host-Processed Modems Reference Manual

3-38

Conexant

100498E

3.2.5

Error Control Commands

This section describes parameters used to select and operate the modem in V.42 LAPM or
MNP error control mode, Normal (Buffered) Mode, or V.80 Synchronous Access Mode.

+ES - Error Control and Synchronous Mode Selection

This extended-format command specifies the initial requested mode of operation when the
modem is operating as the originator, optionally specifies the acceptable fallback mode of
operation when the modem is operating as the originator, and optionally specifies the
acceptable fallback mode of operation when the modem is operating as the answerer. It
accepts three numeric subparameters:

Syntax

+ES=[<orig_rqst>[,<orig_fbk>[,<ans_fbk>]]]

Defined Values

<orig_rqst>

Decimal number which specifies the initial requested mode of
operation when the modem is operating as the originator. The
options are:

0

Initiate call with Direct Mode.

1

Initiate call with Normal Mode (also referred to as
Buffered Mode or Direct Mode) only.

2

Initiate V.42 without Detection Phase. If V.8 is in
use, disable V.42 Detection Phase.

3

Initiate V.42 with Detection Phase. (Default.)

4 Initiate

MNP.

6

Initiate V.80 Synchronous Access Mode when
connection is completed, and Data State is entered.
(See +ESA and +ITF commands.)

<orig_fbk>

Decimal number which specifies the acceptable fallback mode of
operation when the modem is operating as the originator.

0

LAPM, MNP, or Normal Mode error control
optional. (Default.)

1

LAPM, MNP, or Direct Mode error control optional.

2

LAPM or MNP error control required; disconnect if
error control is not established.

3

LAPM error control required; disconnect if error
control is not established.

4

MNP error control required; disconnect if error
control is not established.

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