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Figure 2-3
Central office isolated bonding network grounding scheme
DSX-1
cross-connect
DSX
DS1 cables
panel
(see eng. rules)
6 AWG
2 AWG
frame
ground bus
Battery return leads (4)
Ground reference
for battery return
(BR) bus
Insulated conduit or
insulated metal-
clad cable
Continuous pair (feed
and return conductors).
One of four pairs shown
+
Insulated
-
BR bus
BDFB and
rectifier
Battery frame ground
AC feed (L, N, and ACEG for 120 V
ac;L1, L2, N, and ACEG for 240 V ac)
in conduit or armored cable
AccessNode ABM Bay Cable Connection Quick Reference Guide Issue 1.0
ABM bay grounding schemes 2-7
Isolated bonding network
Modem
(see eng.rules)
AccessNode
120 V for ac
receptacles
SPG (see
eng. rules)
Dedicated
ACEG
ac panel
Primary ac panel
ACEG
Building principal
ground (BPG)
VF lines
6 AWG
2 AWG
frame
ground
bus
MDF (see
eng. rules)
Right odd
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