Grounding The Frame In Cpe Or A Co - Nortel Passport 15000 Preparation Manual

138 Chapter 4 Power and grounding preparation

Grounding the frame in CPE or a CO

241-1501-205 5.2S2
Table 25
Cable identification, United Kingdom
Signal name Function
-48 V dc power
BR battery return
FG frame ground
LR logical return
Table 26
Cable identification, Japan
Signal name Function
-48 V dc power
BR battery return
FG frame ground
LR logical return
With customer premises equipment (CPE) or in a central office (CO), the
Passport 15000 or 20000 is grounded to the NEBS 2000 frame (NTRU04)
and the frame is grounded to the ground window of the site.
WARNING
Risk of injury or equipment damage by electricity
The frame ground is the protective ground and must have a
reliable permanent connection to earth. Do not ground a
frame to another frame, especially by "jumping" a wire
from frame to frame.
Color code
blue
red (or black if referenced to 0 V)
green and yellow
black
Color code
blue
red
black
black