Zte ZXC10 CBTS O1, Техническое руководство

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ZXC10 CBTS (V1.0)Technical Manual
34 Confidential and Proprietary Information of ZTE CORPORATION
PWS
The PWS subsystem supplies power for the whole BTS cabinet. It converts
AC to DC, performs power distribution and monitoring, and manages the
storage battery.
A PWS can comprise the primary (not required if the –48 V is usable on
site) and secondary power supply. The primary one converts 220 V/110 V
AC to -48 V while the secondary one converts and distributes the –48 V
DC again to ±12 V, ±5 V, 27 V, 3.3 V and 2.5V.
PWS Schematic Diagram
In the case the 220 V/110 V AC is available on site, the PWS works in the
way as shown below:
F
I G
. 9 P W S S
C H E M A T I C
D
I A G R A M
APD
220V/110V AC In
-48V DC Out
P
R
M
P
R
M
P
R
M
P
R
M
P
R
M
CCM/RMM
PMM
Temperature,Door...
P
R
M
Components of PWS include:
PMM (Power Monitor Module): monitors the power system and
reporting the status.
APD ( AC Power Distribution Module): Converts the 220 V/110 V AC to -
48 V DC, used when the user provides the 220 V/110 V AC only.
PRM (Power Rectifier Module): used for AC input and can be configured
in 5+1 mode.
RPD (RFS Power Distribute): converts –48 V to provide suitable power
supplies for the RFS boards.