Huawei NE05E Hardware Manual page 231

HUAWEI NE05E,NE08E
Hardware Guide
Inspecting Optical Fiber Connectors
The Ethernet port rate is increasing and the quality requirement for optical fibers
and optical cables is higher.
optical fiber connectors according to the national standard (GBT50312-2016).
Table 3-267 Maximum attenuation of the optical fiber connector
Type
Fiber splicing connector
Optical mechanical connector
Optical connector
Table 3-268
connector when Ethernet ports (such as 200G and 50G) use PAM4 encoding to
double the rate. More connectors bring lower requirements for the reflection.
Table 3-268 Maximum reflection of connectors
Number of Optical Fiber
Connectors
1
2
4
6
8
10
Link splice loss and reflectance values of the test methods and the following
processing steps:
1.
Issue 05 (2023-03-31)
NO TE
Fiber cores are connected through connectors, such as the ODF, optical attenuator, and
flange, in splicing and mechanical modes.
describes requirements for the reflection of the optical fiber
After the optical fiber at the peer end is disconnected, use the OTDR meter to
test the local end. Check whether the loss and reflection of each link and
node are normal. (The loss of a fiber splicing connector should be less than
0.3 dB, the loss of a connector should be less than 0.75 dB, and the reflection
of a connector should be less than -30 dB.) If the test result is not within the
required range, process the abnormal port.
Copyright © Huawei Technologies Co., Ltd.
Table 3-267 describes requirements for the loss of
Maximum attenuation of an optical fiber
connector (dB)
0.3
0.3
0.75
Maximum Reflection of Each Connector
(dB)
-22
-29
-33
-35
-37
-39
3 Hardware Description
223