Pws Working Principle; Hardware Configuration - Zte ZXC10 CBTS Technical Manual

PWS Working Principle

The 220 V/110 V AC is distributed by APD first, then rectified by PRM,
converted to primary power supply, next output as –48 V DC.
The primary –48 V DC is again converted and distributed by RPD into ±12
V, ±5 V, 27 V, 3.3 V and 2.5V for the RFS boards.

Hardware Configuration

The primary power supply part of PWS is an optional configuration that
can be detached from the BTS. The RPD board is the secondary power
supply part of PWS that is inseparable from the BTS.
This section covers the hardware configuration of the primary power
supply only (see the diagram below). For configuration details of the
secondary power supply, please refer to the hardware manual.
F . 1 0 P P
I G R I M A R Y O W E R
APD
1 2 3
P P P
M R R
M M M
S P W S
U P P L Y O F
4 5 6
P P P
R R R
M M M
Confidential and Proprietary Information of ZTE CORPORATION
Chapter 2 - BTS Hardware
35