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DBS3900 WiMAX
Site Maintenance Guide (Draft)
Take proper ESD prevention measures. For example, wear ESD wrist straps or gloves to prevent
boards, modules, and electronic components from being destroyed by static discharge from the
human body.
Procedure
Step 1 For details about how to power off the BTS3702E, see
Step 2 Remove the waterproof insulation tapes on the BTS3702E RF port and the antenna RF port.
Step 3 Remove the faulty RF jumpers from the BTS3702E RF ports.
Step 4 Remove the faulty RF jumpers from the RF ports on the antenna system.
Step 5 Fix the connector of the new RF jumpers to the corresponding RF ports on the BTS3701E.
Step 6 Wrap the joints of the BTS3702E RF ports with a layer of insulating tape. Wind the tape around
the joint from top down.
Step 7 Wrap the insulating tape with three layers of waterproof tape.
Step 8 Wrap the waterproof tape with three layers of insulating tape. For details about how to wrap the
insulating tape, see
Step 9 Connect the RF jumpers to the antenna system.
Step 10 Wrap the joint of the RF ports of the antenna system with the waterproof insulation tape.
Step 11 Stick the color rings. The new color rings should have the same color as the color rings on the
old RF jumpers.
Step 12 For details about how to power on the BTS3702E, see
----End
Later Measures
Check the following items after replacing the faulty RF jumpers:
l
l
Contact the local Huawei office to handle the faulty RF jumpers.
Issue 01 (2009-11-30)
CAUTION
NOTE
See the BTS3702E Quick Installation Guide to install new RF jumpers.
NOTE
The tape is wrapped in the following sequence: from top down, from bottom up, and then from top down.
For every two adjacent tape layers, the tape on the upper layer overlaps about half the width of the tape on
the lower layer.
Step
7.
The cables are correctly and securely connected.
The BTS3702E is operational after being powered on.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
7 Replacing the BTS3702E Cables
3.2 Powering Off the
3.1 Powering On the
BTS3702E.
BTS3702E.
7-7
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