3.1 Powering On the BTS3702E
The power supply input of the BTS3702E is -48 V DC. After powering on the BTS3702E,
determine the working state of the BTS3702E according to the status of the indicators.
Prerequisite
l
The installation of the hardware and cables of the BTS3702E is finished.
l
The range of the power supply input of the BTS3702E is from -36 V DC to -57 V DC.
Context
CAUTION
The BTS3702E must be powered on within 24 hours after being unpacked or after being powered
off for maintenance.
Procedure
Step 1
Turn on the power switch of the BTS3702E.
DANGER
After the BTS3702E is powered on, do not look directly at the beam from the optical module
without taking the necessary eye-protection measures.
Step 2
Wait for three to five minutes and then check the status of the indicators on modules of the
BTS3702E.
lists the meanings of the indicators.
Table 3-1
Meanings of the BTS3702E indicators
Indicator
Color
State
Description
RUN
Green
On
There is power input, but the
board is faulty.
Off
There is no power input, or the
board is faulty.
Blinking at 4 Hz (on for
0.125s and off for 0.125s)
The board is being loaded.
Blinking at 0.5 Hz (on for
1s and off for 1s)
The board is working
properly.
3 Powering On and Powering Off the BTS3702E
DBS3900 WiMAX
Site Maintenance Guide (Draft)
3-2
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 01 (2009-11-30)
