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RRU3931E
Site Maintenance Guid
1.3 Powering On or Off a RRU3931E1.3 Powering On or Off a RRU3931E
The indicator status of a RRU3931E must be observed following a power-on to determine its
running status. Normal power-off can be used to power off a RRU3931E.
1.4 Replacing a RRU3931E1.4 Replacing a RRU3931E
RRU3931Es employ modular design and faulty ones must be replaced promptly. Replacing a
RRU3931E interrupts all ongoing services carried by it.
1.5 Replacing an Optical Module1.5 Replacing an Optical Module
An optical module implements photoelectric conversion, enabling optical transmission
between a RRU3931E and other devices. Before replacing an optical module, disconnect the
fiber optic cable from the optical module. The disconnection interrupts transmission of optical
signals.
1.1 Changes in RRU3931E Site Maintenance Guide
This section describes changes in RRU3931E Site Maintenance Guide.
1.2 Turning On or Off Indicators
Indicators on the RRU3931E can be turned on or off.
1.3 Powering On or Off a RRU3931E
The indicator status of a RRU3931E must be observed following a power-on to determine its
running status. Normal power-off can be used to power off a RRU3931E.
1.4 Replacing a RRU3931E
RRU3931Es employ modular design and faulty ones must be replaced promptly. Replacing a
RRU3931E interrupts all ongoing services carried by it.
1.5 Replacing an Optical Module
An optical module implements photoelectric conversion, enabling optical transmission
between a RRU3931E and other devices. Before replacing an optical module, disconnect the
fiber optic cable from the optical module. The disconnection interrupts transmission of optical
signals.
Issue Draft A (2016-03-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1 RRU3931E Site Maintenance Guide
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