Huawei DBS3900 Installation Manual page 173

DBS3900 LampSite
Installation Guide
Context



Procedure
Step 1 Use a torque wrench with a torque of 0.6 N•m to connect the SMA straight male connector on
a jumper to the ANT port on the pRRU3902 panel.
Tighten it with hands, and then use a torque wrench to tighten it with a rotational speed of less
than or equal to 2.4 rpm to tighten it.
Step 2 Connect the type N female connector of the jumper to the type N male connector of the RF
feeder connected to the built-in antenna.
Tighten the feeder close to the type N connector to ensure that the jumper is not tightened. In
this way, the connectors on both ends of a jumper are not affected by the external force.
Figure 8-62 Installing jumpers between the pRRU3911 and external antennas
----End
Issue 08 (2016-05-30)
An RF jumpers delivered is 50 cm at most.
If the RF jumper is provided by the customer, the jumper must not be lower than the
RG316 specifications. In addition, the jumpers can be used after they are checked by
Huawei engineers.
pRRU3911s can be connected to external whip antennas or external remote antennas
(through pRRU3911 RF jumpers). Whip antennas are delivered optionally. RF jumpers
are not delivered.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
8 Installing a pRRU3902 or pRRU3911 or
pRRU3911+WIFI
166