2.
Wrap a layer of PVC insulation tape around the connector from bottom up.
3.
Tightly wrap three layers of waterproof tape around the connector, with the first layer
from bottom up, the second layer from top down, and the third layer from bottom up.
4.
Tightly wrap three layers of PVC insulation tape around the connector with the first layer
from bottom up, the second layer from top down, and the third layer from bottom up.
5.
Bundle cable ties 3 mm to 5 mm away from the end of insulating tape.
NOTE
l
Before wrapping waterproof tape, stretch the tape evenly until the length of the tape is twice its
original length.
l
Do not stretch the PVC insulation tape before wrapping.
l
Wrap each layer of tape around the connector tightly and neatly, and ensure that each layer of tape
overlaps more than 50% of the preceding layer
l
Ensure that the side with adhesive tape is covered on the wrapped tape.
l
When cutting off the cable tie, reserve a surplus length of 3 mm to 5 mm.
Step 5
(Optional) If a normal type N female connector is used for the antenna to be installed, perform
Step 4
to
Step 5
.
Step 6
(Optional) If the DIN-type female connector is used for the antenna to be installed, perform
the following steps:
1.
Connect the DIN male and N female connector to the RF port of the external antenna
system.
2.
Connect the type N male connector at one end of the RF jumper of the RRU3931E to the
DIN male and N female connector.
3.
Waterproof the port connecting the DIN male and N female connector and the external
antenna system and the port connecting the RF jumper of the RRU3931E and the DIN
male and N female connector. See
Figure 1-38
.
Figure 1-38
Waterproofing the ports
(1) PVC insulation tape
(2) Waterproof tape
a.
Wrap a layer of PVC insulation tape around the connector from bottom up.
RRU3931E
Installation Guide
1 RRU3931E Installation Guide
Issue Draft A (2016-03-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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