User's Manual Part 1

Outdoor Enclosure Equipment Identification – continued

DRAFT

1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU

Jun 2004

1-30

Figure 1-10: Power Distribution Assembly

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Power Distribution Enclosure

The following are brief descriptions of the components of the PDE.

PDE

The Power Distribution Enclosure converts AC voltage to DC voltage

for use by the TME and Compact Combined Linear Power Amplifier

(cCLPA). Battery backup is routed through the PDE. See Figure 1-11.

S AC Load Center (ACLC) – Where the AC voltage is connected to the

PDE. Also contains AC surge protection.

S Power Supply Module (PSM) – Converts the 220–240 VAC to +27 V

DC for use by the TME, BTS, and cCLPA.

S Power Management Alarm Card (PMAC) – Monitors alarms for PDE

and battery backup.

S Circuit Breakers (CB) – Provides DC surge and DC short circuit

protection.

S Punch Block (PB) – Distribution point for incoming and outgoing

data signal lines.

S Multiple ground connections at the reaar of the PDE

S Antenna surge arrestors slots

The Heat Exchanger attaches to the PDE and provides temperature

regulation.