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AC Power and Grounding
To Central
Office or
Serving
Facility
#12 or #14
AWG
Ground
Wire
Network
Lines
CO
DIW or
25-Pair Cable
CO
Line
Wiring
Protector
Interface
Field
AC
Outlet
Plug
Coupled Bonding
Conductor (optional)
(Power)
(Supply
)
I
D2R
Cords
Commercial
Power
B
Single -
Power
W
Service
Point
#6 AWG
Ground
Ground
Bar
Wire
Shield
Ground
GND (Green)
Earth
Power
Ground Bond
Wire
Ground
Rod
Figure 2-3. Central Office and AC Grounds
Installing the Control Unit 2-11