– ALM LED: off
– ACT LED: on
l RUN LED on the UPEU: on
l STATE LED on the FAN unit: blinking green slowly (on for 1s and off for 1s)
13.8 Installing the Cover Plate for the IMB03
This section describes the procedure for installing the cover plate for the IMB03.
Procedure
Step 1 Fit the tabs on the cover plate into the slots in the IMB03, as shown in Figure 13-61.
Figure 13-61 Installing the cover plate
Step 2 Tighten the M3×8 bolt on the bottom of the cover plate for the IMB03 to 0.3 N·m using a Phillips
torque screwdriver, as shown in Figure 13-62.
DBS3900 (Ver.B)
Installation Guide 13 Indoor Scenario (BBU Installed in an IMB03)
Issue 06 (2011-09-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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