Electrostatic discharge is hazardous to the electronic equipment. Wear an ESD
wrist strap and ensure that the strap is grounded properly before touching the
equipment and boards, to protect the static-sensitive components against
electrostatic discharge of the human body. Otherwise, the equipment may be
damaged or the service may be interrupted.
Procedure
1. Shut down the laser and disconnect the ber end before inspecting the ber
connector.
2. Test the optical power using a power meter to ensure that the laser is shut
down.
3. Use a
ber microscope to check whether the ber connector is contaminated
or damaged. See the examples below.
– Clean
ber and face
Figure 4-239 shows an image of a clean ber end face under the ber
microscope.
Figure 4-239 Clean
ber and face
– Damaged ber end face
Figure 4-240 shows images of the damaged ber end face. The image on
the left shows a severely damaged
ber. Severely damaged bers can
cause damage to the equipment and should not be used. The image on
the right shows a defective
ber. If the output power is within a certain
range, the defective ber might not cause any damage to the equipment.
If the output power is unstable or out of the range, however, the
defective
ber can cause damage to the equipment.
HUAWEI NetEngine 8000 F
Hardware Guide 4 Hardware Installation and Parts Replacement
Issue 05 (2023-03-31) Copyright © Huawei Technologies Co., Ltd. 590
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