l PGND cables and signal cables must be installed in an untangled and orderly fashion. A
certain distance must be reserved between them to prevent interference from each other.
l Fuses or switches must not be installed on the PGND cables.
l Other devices must not be used for electrical connections of the PGND cables.
l All the metal parts in the housing of the equipment must be reliably connected to the ground
terminal.
Cabling requirements for fiber optic cables are as follows:
l Do not stretch, step on, or place heavy objects on fiber optic cables. Keep the cables away
from sharp objects.
l When fiber optic cables are routed, the extra length of the cables must be coiled around
special devices, such as a fiber coiler.
l When coiling fiber optic cables, apply even strength. Do not bend the cables with force.
l Vacant optical connectors must be covered with dustproof caps.
9.2 Cable Connections
The cable connections of the BTS3902E vary depending on the number of BTS3902Es and the
BTS3902E port.
Cable Connections of the BTS3902E
Figure 9-1 shows the cable connections of a single BTS3902E implementing transmission over
an electrical port.
9 Installing Cables
BTS3902E WCDMA
Installation Guide
9-4 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue Draft A (2011-06-30)
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