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To activate the -36 dB receiver sensitivity, set the LBO to AUTO. This
action 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.
61202156L2-1
U-BR1TE
The timing selection U-BR1TE works like N
(CSU) except that timing is derived from the U inter-
face on port 1.1.
Set Line Buildout
Selects the line buildout for the network interface. In
AUTO mode, the TDU 120e 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, and Auto.
Remote Loopback Det
Sets unit to accept or reject the network interface loop-up
and loop-down codes as defined in ANSI T1.403.
Choices: A
CCEPT
ATT & FT1, R
EJECT
Bit Stuffing
When enabled, bit stuffing causes the TDU 120e to moni-
tor for ones (1s) density violations and insert a one (1)
when needed to maintain 1s at 12.5%.
Choices: E
or D
NABLE
TR-08 Options
The TR-08 submenu configures the unit for TR-08 appli-
cations. The submenu items and their descriptions fol-
low:
Alarm Report
Enables and disables the transmission of alarm reports.
Choices: S
A
END
LARMS
TDU 120e User Manual
Chapter 5. Configuration Menu
A
, R
ATT, R
LL
EJECT
A
.
LL
.
ISABLE
, D
A
ISABLE
ORMAL
FT1, R
EJECT
EJECT
LARMS
5-13
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