Blowing Heat Shrink Tube; Checking; Figure B-11 Blowing The Heat Shrink Tube To Shrink It - Huawei BBU3806 Installation Manual

Installation Manual – Hardware Installation
BBU3806 WCDMA Base Band Unit
B.3.5 Blowing Heat Shrink Tube
Place the heat shrink tube onto the joint of the crimping sleeve and the cable. Evenly
blow in hot air by using the hot air gun until the heat shrink tube evenly shrinks. Refer
to Figure B-11 below.
(1)
(1) Blow-shrinking

Figure B-11 Blowing the heat shrink tube to shrink It

B.3.6 Checking
Check the following items after making connectors of communication cables:
I. Continuity Check
Use a multimeter to measure:
The continuity between the connector pin and the inner conductor of the coaxial
cable
The continuity between the outer shell of the connector and the shielding layer of
the coaxial cable
II. Insulation Test
Use a multimeter to measure if short circuit exists between the inner and external
conductors.
III. Tensile Strength Test
Pull outward the inner pin with a proper force (about 60 N). There should be no visible
movement of the inner pin.
IV. Outer Appearance Inspection
Check that no shielding wires are exposed and all the pins are in position.
Huawei Technologies Proprietary
B-9
Making Connector of Communication Cable
Appendix B