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Chapter 5. Configuration Menu
5-4
TSU 120 User Manual 61202129L1-1
SET LBO Selects the line build out for the network interface. In
AUTO
MODE
, the TSU 120 sets the LBO based on the
strength of the receive signal and displays the selected
value.
Choices: 0.0 dB, 7.5 dB, 15 dB, 22 dB, Auto.
In order to activate the -36 dB receiver sensitivity, the
LBO should be set to
AUTO
.
This feature is useful in a point-to-point application
where no network elements are involved. If a network
element such as a Smart Jack is installed on the circuit,
the LBO should be set to 0 dB.
INBAND
LPBCK
Sets unit to accept or reject the network interface loop-
up and loop-down codes as defined in ANSI T1.403.
Choices: Accept, Reject.
BIT
STUFFING
When enabled, bit stuffing causes the TSU 120 to
monitor for ones (1s) density violations and insert a one
(1) when needed to maintain 1s at 12.5 percent.
Choices: Enable, Disable.
TR-08 The TR-08 submenu configures the unit for TR-08
applications. The submenu items and their descriptions
follow.
Alarm Report
Enables and disables the transmitting of alarm reports.
Choices: SEND ALARMS, DISABLE ALARMS
Alarm Format
Sets the alarm frame format to 13 frames or 16 frames.
Choices: ORB-13, ORB-16
BPV Threshold
Sets the threshold for BPVs to trigger an alarm.
Choices: 10-4, 10-5, 10-6
Menu Item Description