Huawei RRU3971 - Installation Scenarios

Indicator Color Status Meaning
Steady red An optical module fails to receive or transmit
signals possibly because the optical module
is faulty or the optical fiber is broken.
Blinking red (on
for 1s and off for
1s)
The CPRI link is out of lock because of faults
on the mutual lock of dual-mode clock
sources or mismatched data rates on CPRI
ports.
Steady off The optical module cannot be detected or is
powered off.
NOTE
VSWR indicators on RRUs providing one or more than two TX channels have two types of status:
l Steady off: No VSWR alarm is generated.
l Steady on: VSWR alarms are generated on one or more ports.
3.4 Installation Scenarios
An RRU can be installed on a pole, U-steel, angle steel, wall, or IFS06. Installation scenarios
must meet heat-dissipation and waterproofing requirements of the RRU.
Requirements for the Installation Scenarios
Application scenarios:
To ensure proper heat dissipation of the RRU, the following requirements must be met:
l The RRU cannot be installed in an enclosed cabinet without a cooling system.
l The RRU cannot be installed in an enclosed camouflage box.
l The RRU cannot be installed in an enclosed equipment room without a cooling system.
l When multiple RRUs are installed in centralized mode, the minimum clearance
requirements must be met. For details about the minimum clearance requirements, see 3.5.2
Clearance for Three or More RRUs and 3.5.3 Installation Spacing Between RRUs.
l RRU mounting kits in assembled installation mode are not allowed in indoor scenarios.
NOTICE
If the RRU is inappropriately installed, heat dissipation of the RRU deteriorates and the RRU
may not work properly, as shown in Figure 3-5.
3 Information About the Installation
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