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ZXSDR BS8900 Hardware Manual
supply for the system to implement lightning protection, filtering,
AC primary conversion, distribution and grounding of the working
power supply.
Principle
Figure 93
illustrates the principle of the APM module.
F
IGURE
93 APM M
ODULE
P
RINCIPLE
The APM module comprises main air circuit breaker, arrester, filters
and power relay.
Measurement
The dimensions of the APM module are: 39.6mm (H) × 182.6mm
(W) × 184mm (D).
Panel
Figure 94
shows the front panel of the APM module.
F
IGURE
94 APM M
ODULE
F
RONT
P
ANEL
1. AC power distribution terminals
DPM
Function
The DC lightning protection module
DPM
supports -48V DC power
input and implements lightning protection, filtering, distribution
and grounding of working power supply.
Principle
Figure 95
illustrates the principle of the DPM module.
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Содержание CDMA Outdoor Basestation-8900
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