User manual

Chapter 5. Configuration Menu
5-20 TDU 120e User Manual 61202156L1-1
Disable HR: The hour that the backup will be disabled. Enter
from the numeric keyboard.
Choices: 0-23
Trap in DBU: If traps are enabled (see Unit configuration),
this parameter will send either a single trap upon going into
a DBU session or send repeated traps for the duration of the
DBU session.
Choices: Single, Repeated
DS-1 (0.2) Menu Items
Format
Format sets the frame format for the base DS-1 interface.
Choices: D4, ESF
Code
Code sets the line code for the base DS-1 interface.
Choices: AMI, B8ZS
Yellow Alarm
Yellow Alarm enables and disables the transmitting of yellow
alarms.
Choices: Enable, Disable
Line Length (ft)
Line Length provides selection of the proper output level for
the base DS-1 based on the length of the interface cable.
Choices:
Short haul interfaces (ft) - 1-133, 133-266, 266-399, 399-533,
533-655
Long-haul interfaces - 0dB -7dB, -15dB, -22dB, auto
For these items to function properly, verify that the time and date
in the TDU are set correctly. See Time/Date on page 6-2 for in-
formation on setting the time and date.