Cpri Fiber Optic Cable - Huawei BTS3900C Hardware Description

BTS3900C (Ver.C)
Hardware Description

7.7 CPRI Fiber Optic Cable

CPRI fiber optic cables are classified into multimode fiber optic cables and single-mode fiber
optic cables. They transmit CPRI signals.
Multimode fiber optic cables connect the BBU and RRU or interconnect two RRUs. The
maximum length of the multimode fiber optic cable between the BBU and RRU is 150 m (492.12
ft) and the multimode fiber optic cable between two RRUs has a fixed length of 10 m (32.81 ft).
A single-mode fiber optic cable consists of the single-mode pigtail and trunk single-mode fiber
optic cable, and the single-mode pigtail and trunk single-mode fiber optic cable are
interconnected using the ODF. The maximum length of the single-mode pigtail is 20 m (65.62
ft) on BBU side and 70 m (229.66 ft) on RRU side.
Exterior
Multimode fiber optic cable: The multimode fiber optic cable has a DLC connector at each end,
as shown in
Figure 7-34 Multimode fiber optic cable
(1) DLC connector
Figure 7-35
RRU.
Issue 03 (2013-05-27)
NOTE
l The ODF and trunk single-mode fiber optic cable are provided by the customer and must comply with
the ITU-T G.652 standard.
l The ODF is an outdoor transfer box for fiber optic cables, which interconnects the single-mode pigtail
and trunk single-mode fiber optic cable.
l A multimode fiber optic cable and a single-mode fiber optic cable are connected to a multimode optical
module and a single-mode optical module, respectively.
Figure 7-34.
NOTE
l When a multimode fiber optic cable connects a BBU and an RRU, the breakout cable on the BBU side
is 0.34 m (1.12 ft) and the breakout cable on the RRU side is 0.03 m (0.098 ft).
l When a multimode fiber optic cable connects two RRUs, the breakout cable on both sides is 0.03 m
(0.098 ft).
shows the connection of the multimode fiber optic cable between a BBU and an
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(2) Breakout cable
7 BTS3900C Cables
(3) Label on the breakout cable
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