NOTE
The 1550 nm optical transmitters are divided into two types: outer modulation optical transmitter and
direct modulation optical transmitter.
1.2 Routine Maintenance Purpose and Item
Maintenance purpose
l
To give full play to the performance and functions of the device to ensure secure, stable,
and reliable operation in the long term
l
To regularly collect the device information to ensure that device information stored in
the resource management system (RMS) is correct
l
To locate and rectify the potential faults at the early stage to ensure fast service
provisioning at the later stage
Maintenance item
It is recommended that regular device maintenance be performed by trained specialists.
Routine maintenance items and period are shown in
.
Table 1-1
Routine maintenance items and period
Check Item
Reference Standard
Oper
ating
envir
onme
nt
Operating temperature
and humidity (in the
equipment room and the
cabinet)
l
For the EDFA, operating temperature: -5°C to
65°C, humidity: 5% to 95% RH.
l
Air conditioners in the equipment room work
properly.
Surroundings of the
device
l
No obvious dust is found on the surface of the
device or the wall in the equipment room.
l
The device is far away from contaminants such as
fumes and sulfide.
l
No mice or insects exist.
l
The equipment room is equipped with smoke
sensors and anti-theft alarms.
Device installation and
fiber inlet sealing
(outdoor)
l
The device is placed stably and horizontally in a
ventilated and dry environment, without sundries
stacked around.
l
The fiber inlet of the outdoor cabinet must be
sealed.
l
Screws for the mounting ears, cabling ears, and
other cabling units of the device are securely
fastened.
Power cable connection
Power cables must be correctly and securely
connected to the device. The power indicator must be
steady green.
EDFA0820-D
Routine Maintenance Guide
1 Routine Maintenance Guide
Issue 02 (2018-07-02)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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