DBS3900 LampSite
Installation Guide
6 Installing an RHUB
Issue 08 (2016-05-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
47
Figure 6-33
Installing an RHUB PGND cable
Step 3
Use a torque screwdriver or Phillips screwdriver to secure the M8 OT terminal at one end of
the PGND cable to the wiring terminal on the ground bar at the site with a torque of 1.4 N•m.
----End
Follow-up Procedure
1.
Route the cable, and then use a cable tie to bind the cable. For details, see 6.4.1
Requirements for Cable Layout.
2.
Label the installed cable. For details, see section 15.4 Attaching an L-Shaped Label.
6.4.6 Installing 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 or crossover 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 pRRU 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 pRRU when connected to the CPRI_E0 port on the
pRRU.
Transmits CPRI signals between an RHUB and a pRRU.
