
1-8
Stinger®
SHDSL 48-Port and 72-Port Line Interface Modules (LIM) Guide
Configuring the SHDSL LIM
Configuring SHDSL interfaces
clock-priority
Clock priority assigned to the SHDSL line. Used to select a
particular shdsl line as the 8kHz system clock source.
Specify one of the following values:
■
high-priority
—A line with this priority is selected over
lines with lower priorities. If more than one line has the
highest priority, the first one to become available is the
source.
■
middle-priority
—Second-highest clock priority.
■
low-priority
—Last clock priority.
loop-back
Whether the line passes normal data or is in loopback
mode. Specify one of the following values:
■
none
(default)—The line is not being used for loopback
testing.
■
analog
—The line is enabled for analog loopback testing.
(You might need to terminate the DSL line with a
150-ohm resistor).
■
digital
—The line is enabled for digital loopback
testing.
margin
Noise margin value (in decibels). Specifying a value that is
less than 6 decibels causes modems to train at higher rates,
but on noisy loops, also causes them to become unstable
and retrain. If this parameter is set to a value that is more
than 6 decibels, the modems train at lower rates, but are
more stable and are less likely to retrain on noisy loops.
Specify one of the following values:
■
0db
■
1db
■
2db
(the default)
■
3db
■
4db
■
5db
■
6db
■
7db
■
8db
■
9db
■
10db
■
disable
Parameter
Setting