Table 7-34
Labels on and recommended connections for the breakout cables of a CPRI fiber
optic cable
Label
Installation Position
Multimode Fiber
Optic Cable
Between a BBU
and an RRU
Multimode Fiber
Optic Cable
Between Two
RRUs
Single-Mode Pigtail
1A
CPRI RX port on the
RRU
CPRI RX port on
RRU 1
RX port on the BBU or
CPRI RX port on the
RRU
1B
CPRI TX port on the
RRU
CPRI TX port on
RRU 1
TX port on the BBU or
CPRI TX port on the
RRU
2A
TX port on the BBU
CPRI TX port on
RRU 0
ODF
2B
RX port on the BBU
CPRI RX port on
RRU 0
ODF
7.8 BTS3900C Signal Cables
This chapter describes all the signal cables used in a BTS3900C, including the exteriors,
functions, and pin assignments of the signal cables.
7.8.1 Monitoring Signal Cable for the Fan Assembly
The monitoring signal cable for the fan assembly is used for the HEUB to monitor the operating
status of the fan assembly.
Exterior
shows a monitoring signal cable for the fan assembly.
Figure 7-38
Monitoring signal cable for the fan assembly
(1) 4-pin connector
BTS3900C (Ver.C)
Hardware Description
7 BTS3900C Cables
Issue 03 (2013-05-27)
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