DBS3900 LampSite
Installation Guide
8 Installing a pRRU3902 or pRRU3911 or
pWIFI
Issue 08 (2016-05-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
154
8.4.4 Cable Installation Process
This section describes the process of installing pRRU cables.
Figure 8-46 shows the process of installing pRRU cables.
Figure 8-46
cable installation process
Only the pRRU3902 using external antennas requires RF jumpers, and the
pRRU3911/pWIFI requires no RF jumpers.
8.4.5 Installing a pRRU3902 Ethernet Cable
This section describes how to install an Ethernet cable.
Prerequisites
The Ethernet cable must be of Category 5e (enhanced) or higher. In addition, its
cross-sectional area must be 24 AWG or larger and frame spread rating must be CM or
higher.
The Ethernet cables can be straight-through cables.
With the internal PoE module providing power, the maximum length of an Ethernet
cable is 100 m. With the Extender, the distance of the pRRU3901 and RHUB can be
extended by the Extender up to a total distance of 200 m.
Ethernet cables are not delivered, and they must be prepared onsite. You need to use a
network cable tester to test the Ethernet cable connection.
Context
The Ethernet cable has the following functions:
Provides power supply for the pRRU3902 when the cable connects the CPRI_E0 port on
the pRRU3902 to the RHUB.
Transmits CPRI signals between an RHUB and a pRRU3902.