Instruction manual
POWER AND GROUNDING
Figure 19 depicts a typical power and grounding layout for a single-carrier system with the PPN
and EPN cabinets colocated. A ground wire from the ground block on the bottom cabinet of the
EPN connects to the single-point ground block on the bottom cabinet of the PPN. A 6-AWG
ground wire connects the single-point ground block to an approved ground. (Also see ‘‘Ground-
ing,’’ later in this section).
6 AWG
GROUND
APPROVED
POWER
CORD
10 FEET
REAR
6 AWG
115-VOLT
60-HZ
TERMINAL
NOTE:
POWER
CORD
10 FEET
115-VOLT
60-HZ
COUPLED
BONDING
CONDUCTOR
10 AWG
WIRE TO
COUPLED
BONDING
CONDUCTOR
10 AWG
20 AMP
SERVICE
15 OR
20 AMP
SERVICE
15 OR
MANAGER
I
(SEE NOTE) (SEE NOTE)
GROUND
(SEE NOTE)
OFF
ON
OFF
ON
SINGLE-POINT
GROUND BLOCK
CIRCUIT
BREAKER
CIRCUIT
BREAKER
POWER
SUPPLY
15-AMP
PLUG
OFF
ON
OFF
ON
POWER
SUPPLY
PROCESSOR PORT NETWORK
CONTROL CABINET A
15-AMP
PLUG
REAR
CONTROL CABINET A
EXPANSION PORT NETWORK
TO APPROVED GROUND LOCATED NEAREST THE TELEPHONE COMPANY OWNED
PROTECTOR GROUND BLOCK AT THE BUILDING ENTRANCE FACILITY
NEMA 5-15 OR
NEMA 5-20
RECEPTACLE,
OR EQUIVALENT
FIGURE 19. Typical Single-Carrier Power and Grounding Layout (EPN Colocated)
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