Huawei HG8240 - Figure 4-4 Measurement Interface of the Optical Power Meter; Table 4-4 Optical Loss Parameters in Engineering

Figure 4-4 Measurement interface of the optical power meter
Optical channel loss is the total insertion loss caused by optical fibers, optical splitters, optical
fiber connectors, and fiber connection points. Table 4-4 shows the estimation of optical channel
loss in the engineering design.
Table 4-4 Optical loss parameters in engineering
Item Average Loss (dB)
Connection
point
Connector 0.3
Mechanical
splicing
0.2
Fusion splicing 0.1
Optical splitter 1:64 19.7
1:32 16.5
1:16 13.5
1:8 10.5
1:4 7.2
1:2 3.2
Optical fiber (G.
652)
1310 nm (1 km) 0.35
1490 nm (1 km) 0.25
Optical channel loss = L x a + n1 x b + n2 x c + n3 x d + e + f (dB)
EchoLife HG8240/HG8245/HG8247 GPON Terminal
Service Manual 4 Maintenance and Troubleshooting
Issue 04 (2011-01-12) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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