2.1 Powering On a BTS3902E
This section describes how to power on a BTS3902E and how to check the running status of the
BTS3902E by observing the status of the indicators.
Prerequisites
l The BTS3902E and related cables are installed.
l The input power voltage of the BTS3902E is within the following range:
– The input power voltage of the AC-powered BTS3902E working at the 1.9 GHz, 2.1
GHz or 850 MHz frequency band ranges from 100 V AC to 240 V AC.
– The input power voltage of the DC-powered BTS3902E working at the AWS frequency
band ranges from -57 V AC to -36 V AC.
Context
NOTICE
After you unpack a BTS3902E, you must power it on within 24 hours. If you power off the
BTS3902E for maintenance, you must restore power to it within 24 hours.
Procedure
Step 1 Power on the BTS3902E.
CAUTION
Do not look into the optical module without eye protection after the BTS3902E is powered on.
Step 2 Wait three to five minutes, and then check the status of the BTS3902E indicators. For details,
see BTS3902E Indicators in BTS3902E WCDMA Hardware Description.
NOTE
If BTS3902Es are cascaded, check the status of all BTS3902E indicators.
Step 3 Take corresponding actions based on the status of the indicators.
If... Then...
The BTS3902E operates properly End the power-on check task.
If the BTS3902E is faulty Rectify the fault, and then go to Step 1.
----End
BTS3902E WCDMA
Site Maintenance Guide
2 Powering On and Powering Off a BTS3902E
Issue 06 (2014-05-16) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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