LTPS-UM-8054-01
Table 8. Fields in H4LX Unit Configuration Screen (Continued)
Field
Type
Network DS1 Source
Toggle
Alarm Pattern
Toggle
Net Lpbk Pattern
Toggle
Net AIS Pattern
Toggle
Perf Rpt Messaging
---
RAI/RAI-CI Net
Toggle
ESF-RAI/SF-RAI Ovwrt
Toggle
Frame Fmt Conversion
Toggle
User Notes
Input
(a) The H4LXR LBO switch setting of the module being configured is displayed at the bottom of the screen.
(b) Power back-off is used to minimize the amount of crosstalk that is introduced into the cable bundle. Power back-off affects
the amplitude of the Power Spectral Density (PSD) Mask. The value shown on the SCU craft interface's H4LXC Configuration
screen indicates the change in dBs that has been made. The SCU reports the current attenuation (power back-off) value
(ranging from 0 to 15 dB) for each end of each HDSL4 segment under this field. If the user selects D (Default), a minimal
power back-off value is selected, and the display reflects that value. If the user selects E (Enhanced), a different power
back-off value is enabled and that value is displayed. The H4LXC module determines the power back-off value for the "D"
and "E" settings. The SCU only reports the setting.
(c) Set the Loop Power Setting to DISABLED when the remote module is the locally powered H4LXR. The loop-powered
H4LXRs require the AUTO, NEG, or POS/NEG Loop Power Setting.
LPS-H4TU-C-L5
Options
NRZ
BIPOLAR
AIS/LOS
AIS/LOS
AIS/CI
Not configurable
DISABLED/ENABLED
DISABLED/ENABLED
OFF/ACON/FCON
Enter up to 30 alphanumeric
characters.
December 3, 2003
Description
Broadband only: Non Return to Zero. This
tells the Craft that the network DS1 source is
at the backplane from the DS3 MUX.
Broadband only: This tells the Craft that the
network DS1 source is at the Extender Card
interface. If BIPOLAR is selected when an
Extender Card is not being used, the DS1
signal cuts off.
Loop Extender only: Locked at BIPOLAR.
Not Used for SCU v3.6.2.5 (Used for SCU
V4.1.1)
Not Used for SCU v3.6.2.5 Used for SCU
V4.1.1)
Not Used for SCU v3.6.2.5
Not Used for SCU v3.6.2.5
Not Used for SCU v3.6.2.5
Not Used for SCU v3.6.2.5
Not Used for SCU v3.6.2.5
Enter additional information in the space
provided.
Provisioning
Default
NRZ
(Broadband
only)
BIPOLAR
(Loop
Extender only)
AIS (Note: If in
BBC, it is
frozen at AIS
and the
Network DS1
Source is
NRZ.)
AIS
AIS
DISABLED
DISABLED
OFF
Blank
19
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