Zte CDMA Outdoor Basestation-8900, Руководство по оборудованию

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C h a p t e r
2
Modules
Table of Contents
BBU Modules ....................................................................15
RRU Modules ....................................................................34
BBU Modules
Control and Clock Module (CC)
Function
CC module provides the following functions:
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Active/standby switchover
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GPS system clock and RF reference clock
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Abis interface function
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Provision of the exchange plane for signaling stream and media
stream to implement GE Ethernet exchange function
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One USB interface
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Subrack management
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Baseband modulation and demodulation
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Provision of external clock extension interface (IEEE1588) and
communication extension interface (through the local mainte-
nance interface).
Principle
The CC module comprises main control unit, GPS unit, power sup-
ply unit, storage unit, Abis interface unit, FI unit, MV unit, Ethernet
exchange unit, FPGA logic unit and EPLD logic unit.
Figure 15 illustrates the principle of the CC module.
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