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ZXSDR R8872A Hardware Description
Figure 2-2 DC Power Cable
Signals
For a description of the DC power cable signals, refer to
Table 2-1 Descriptions of DC Power Cable Signals
Signal
-48 V
-48 V GND
Connection
One end of the DC power cable is connected to the DC power supply interface inside the
maintenance cavity of the ZXSDR R8872A, and the other end is connected to an external
power supply device.
2.3 Optical Fiber
Purpose
The optical fiber connects the ZXSDR R8872A to the BBU or cascade RRUs.
External View
Figure 2-3
Figure 2-3 Optical Fiber
Connection
When the optical fiber connects the
connected to the optical port OPT1 inside the maintenance cavity on the equipment, and
the other end is connected to the optical port on the BBU.
When the optical fiber cascades RRUs, one end of the optical fiber is connected to the
optical port OPT2 inside the maintenance cavity of the upper-level RRU, and the other
end is connected to the optical port OPT1 inside the maintenance cavity of the RRU on
this level.
SJ-20141127113509-002|2014-11-17 (R1.0)
Meaning
-48 V power
-48 V ground
shows an optical fiber.
Table
RRU
to the BBU, one end of the optical fiber is
2-2
ZTE Proprietary and Confidential
2-1.
Cable Coil Color
Blue
Black
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