Chapter 2 Modules
F
IGURE
32 P
OWER
D
ISTRIBUTION
S
UBRACK
S
TRUCTURE
1. RSU 4~6
2. FAN
3. RSU 1~3
Radio System Unit (RSU)
Function
RSU
provides the following functions:
�
Communication with the baseband subrack
�
Conversion between air interface RF signals and digital signals
�
RF signal amplification, transmission, and reception
�
Clock synchronization.
Principle
The RSU module comprises transceiver board (RTR), power am-
plifier (PA), duplexer (DFL), lightning interface board (PIBC) and
power unit (RPDC).
Figure 33
illustrates the RSU’s schematic dia-
gram.
F
IGURE
33 RSU S
CHEMATIC
D
IAGRAM
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Содержание CDMA Outdoor Basestation-8900
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