Figure 7-37 Connection of the single-mode pigtail
(1) Single-mode pigtail between a BBU and an ODF (2) Single-mode pigtail between an RRU and an ODF
Selection Principles
The following table describes the principles for selecting CPRI fiber optic cables.
Table 7-33 Principles for selecting CPRI fiber optic cables
Remote
Distance
Selection Principle Remarks
Less than or
equal to 100 m
(328.08 ft)
Multimode fiber optic cable Connects the BBU and RRU
When it connects two RRUs, the distance
between the two RRUs must be equal to or
less than 10 m (32.81 ft).
Greater than
100 m (328.08
ft) and equal to
or less than
150 m (492.12
ft)
Multimode fiber optic cable Connects the BBU and RRU
Recommended: single-mode
fiber optic cable (single-mode
pigtail and trunk single-mode
fiber optic cable)
The single-mode pigtail at the RRU or BBU
side is connected to the trunk single-mode
fiber optic cable using the ODF.
Greater than
150 m (492.12
ft)
Single-mode fiber optic cable
(single-mode pigtail and trunk
single-mode fiber optic cable)
Pin Assignment
Table 7-34 describes the labels on and recommended connections for the breakout cables of a
CPRI fiber optic cable.
BTS3900C (Ver.C)
Hardware Description 7 BTS3900C Cables
Issue 03 (2013-05-27) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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