User's Manual

Table Of Contents
VOLUME III, CHAPTER 3, INU AND INUE INSTALLATION
Power Line Filter Option
An external DC power line filter option is available and must be installed with an
INU/INUe for NEBS compliance. It ensures Eclipse meets EMI requirements spec-
ified within Telcordia GR-1089-CORE, Issue 4, June 2006.
It is IRU tall and 140mm wide (5.5”), and is supplied as a kitset comprising the
filter unit, bracket for left or right side rack mounting, and a short 2W2 to 2W2 cable
for connecting the filter unit to the NCC or NPC -48 Vdc inputs.
Where an NPC is fitted, two filter units are required, one for the NCC, the other for
the NPC.
The standard power cable supplied with an INU or NPC is re-used as the power
input cable for the filter unit.
Figure 3-4. Power Line Filter with Bracket
68 AVIAT NETWORKS