Huawei DBS3900 Installation Manual page 103

RRU3260
Installation Guide
Figure 9-15 Waterproofing a dustproof cap
(1) Dustproof cap
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Step 5 Route the cables according to the instructions in
cable ties to bind the cables.
Step 6 Label the installed cables according to the instructions in Attaching a Sign Plate Label.
Step 7 Attach color-coding to the installed RF jumper according to the instructions in Attaching the
Color Ring.
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Issue 05 (2014-06-30)
Before wrapping waterproof tape, stretch the tape evenly until the length of the tape becomes twice
its original length.
Do not stretch the PVC insulation tape when wrapping the PVC insulation tape.
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. Ensure that neighboring layers are stuck to each
other.
Ensure that the adhesive surface of the tape overlaps the lower layer.
When cutting off the cable ties, reserve a redundant length of 3 mm (0.12 in.) to 5 mm (0.2 in.).
Verify that dustproof caps are not removed.
Wrap three layers of waterproof tape on the connector, first from bottom up, then from
top down, and finally from bottom up. Wrap each connector with three layers of
waterproof tape, from bottom up, then from top down, and finally from bottom up. Do
not cut the tape until all the three layers of the tape are already wrapped. Cut off the
redundant tape after three layers are wrapped. Wrap each layer of tape around the
connector tightly.
Wrap three layers of PVC insulation tape. Wrap each connector with three layers of
waterproof tape, from bottom up, then from top down, and finally from bottom up. Do
not cut the tape until all the three layers of the tape are already wrapped. Cut off the
redundant tape after three layers are wrapped. Wrap each layer of tape around the
connector tightly.
Start binding cable ties to the cable at a position 3 mm (0.12 in.) to 5 mm (0.2 in.) away
from one end of the PVC insulation tape.
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(2) Waterproof tape
9.1 Cabling
9 Installing RU Cables
(3) PVC insulation tape
Requirements, and then use
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