Figure 8-6 CPRI fiber optic cables routed through the cabinet (2)
Figure 8-7 FE/GE cables routed through the cabinet
l If fiber optic cables need to be routed on the tower platform, lay out the cables on the
guardrail with the shortest distance and route the cables along the guardrail.
l If fiber optic cables need to be routed close to a device on the tower, secure the cables to
the guardrail or pole with cable clips. The device cannot be far away from the position for
securing the cables.
l If the fiber optic cables close to a device are too long, coil the excess of the cables and
secure them on the tower.
8.2 Cable Connections
This section describes the cable connections for a single RRU and multiple RRUs.
NOTE
l A lower-level RRU obtains power directly from the external power system, but not from an upper-
level RRU using a power cable.
l The RRU3642 is a single-mode RRU. It only supports the cable connections shown in Figure 8-8 and
Figure 8-10.
l The RRU3642 does not support the inter-RRU cable connection shown in Figure 8-12.
Figure 8-8 shows the cable connections for a single RRU in the single-mode scenario.
RRU3942&RRU3642
Installation Guide
8 Installing RRU Cables
Issue 07 (2013-12-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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