En — enable/disable line quality monitor, L — report received signal level, Q — report line signal quality – Ositech comm Trumpcard Data/Fax Modem User Manual

Page 62: Examples

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4 - 30

Trumpcard 14400/28800 Modem

Section Four

%En — Enable/Disable Line Quality Monitor

Parameters

0-3

Default

2

Controls whether or not the modem will automatically monitor the line
quality and request a retrain, or fall back when line quality is insufficient,
or fall forward if line quality is sufficient.

Examples

AT%E0

Disable line quality monitor

AT%E1

Enable line quality monitor and auto-retrain

AT%E2

Enable line quality monitor and fall back / fall
forward

AT%E3

Enable line quality monitor and auto-retrain, but
hang-up immediately when EQM reaches hang-up
threshold

%L — Report Received Signal Level

Parameters

none

Default

none

Returns a value identifying the received signal level. The possible values
are:

009 = Received level of -9 dBm

010 = Received level of -10 dBm
011 = Received level of -11 dBm

.
.
.

043 = Received level of -43 dBm

If the received level is greater than -9 dBm, 009 will be reported. If the
received level is less than -43 dBm, 043 will be reported.

%Q — Report Line Signal Quality

Parameters

none

Default

none

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