HUAWEI EQUIPMENT INSTALLATION

Internal

01. August 2006

Preparation of Antenna
Feeder Connector
Course No. : EQA--CM-004
Composer : Engineering Quality Dept.

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Note:

 Throughout the installation of antenna feeder, preparation of feeder

connector is a very important task. Whether the operation is standard
and correct directly affects the working performance of the antenna
feeder. There are two types of common used feeder connector: 7/16 DIN
feeder connector and 7/16 DIN jumper connector. You can prepare the
connector by the following related connector preparation flow and
specifications.

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Page 2


1. Preparation of 7/16 DIN Feeder Connector
2. Preparation of 7/16 DIN Jumper Connector
3. Connection and Water-Proof Measure of Connector

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Preparation Flowchart of Antenna Feeder Connector
Prepare tools

Truncate the antenna feeder

Prepare the connector Prepare
tools

Seal the connector

Check the connector

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Feeder Connector
1. Get familiar with the preparation flow
by reading the connector preparation
instructions. Prepare the connector
preparation tools and place them in
the easily accessible place.

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Page 5


Preparation and Specifications of Antenna Feeder Connector
— 7/16 DIN Feeder Connector

2. Straighten the feeder to be installed
with the connector and strip off a
section of sheath of the feeder with a
guarded knife. Keep the notch flat
when stripping the feeder.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Feeder Connector

3. At the place about 28 mm away from
the stripped point, cut off the feeder
with a hacksaw. The section must be
flat and on the wave crest of the
feeder.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Feeder Connector
4. Use the expansion tool to expand the
external conductor of the feeder. If
the inner or external conductor of the
section of the feeder has burrs, use
the file to remove the burrs.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Feeder Connector
5. Use a brush or tape to remove the
debris of the connector. Before
installing the connector, unscrew the
connector first.

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Page 9


Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Feeder Connector
6. Manually screw the connector on to
the feeder. Use one spanner on the
connector cap and remain steady,
and use another spanner to fasten
the screw.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Feeder Connector
7. By now, installation of the feeder
connector is completed. Before
connecting the jumper, use a plastic
bag or tape to cover the feeder
connector to prevent any damage.

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Page 11


1. Preparation of 7/16 DIN Feeder Connector
2. Preparation of 7/16 DIN Jumper Connector
3. Connection and Water-Proof Measure of Connector

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Page 12

Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Jumper Connector
1. Take out the connector preparation
instructions from the package and
get familiar with the preparation
flow. Prepare the connector
preparation tools and place them
in the easily accessible place.

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Page 13


Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Jumper Connector
2. Coat the feeder with heat-shrinkable
tube and use the cable pliers to
remove the external conductor 7mm
away from the connector. The section
must be flat.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Jumper Connector
3. Use the guarded knife to carefully
remove the foam and adhesives
without damaging the inner
conductor. Cut off the sheath of the
cable 19 mm away from the
connector.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Jumper Connector
4. To facilitate the installation of cover
cap, use the file to remove the 1 mm
of the edge angle of the inner
conductor and brush off the debris.

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Page 16

Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Jumper Connector
5. Spread the Vaseline onto the jumper,
on which the sheath is removed.
Then cover the jumper with the
water-proof rubber band.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Jumper Connector
6. Screw the fastening nut onto the
cable until the pad is in flush with
the fastening nut.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Jumper Connector

7. Fasten the connector cap on the
screw thread. Steady the fastening
nut with one spanner and use
another spanner in the front to fasten
the connector cap.

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Preparation and Specifications of Antenna Feeder
Connector — 7/16 DIN Jumper Connector
8. Use the heat gun to fasten the heatshrinkable tube. Test the feeder and
use the feeder after the test is
passed.

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Page 20


1. Preparation of 7/16 DIN Feeder Connector
2. Preparation of 7/16 DIN Jumper Connector
3. Connection and Water-Proof Measure of Connector

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Page 21


Specifications for Connecting the Antenna Feeder
Connector and Jumper Connector
1. Manually connect the jumper with
feeder connector and then use the
spanner to fasten them.

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Page 22


Specifications for Connecting the Antenna Feeder
Connector and Jumper Connector
2. Wrap the connector: First, wrap
three layers of water-proof daub.
Finally, wrap three layer of
insulation tape again. After that,
use the bandage to fasten the
connector wrapped with the
insulation tape.

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Page 23


Specifications for Connecting the Antenna Feeder
Connector and Jumper Connector
3. Wrapping requirement: Wrap one
layer from bottom upward, one layer
from top to bottom, and finally one
layer from bottom upward. When
wrapping the tape or daub, make
sure that the upper layer covers 1/3
of the lower layer. The daub must be
stretched to 50%. The tape must be
wrapped smoothly.

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Page 24


Thank You
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