Chapter 4. Planning for Fiber Connections
29
Optical Power Loss Through Connectors
When calculating optical power loss in ATM connections, you must take into account
the number and types of connectors used. In your calculation, use the average power
loss for connectors with physical and non-physical contacts as shown in Table 20.
IBM recommends that high-quality, low-loss connectors be used in your ATM
connections.
Table 20. Optical Power Loss per Connector
Connector Type
Cable Size (microns)
Average Loss (dB)
Physical contact
62.5 to 62.5
0.4
50 to 50
0.4
62.5 to 50
2.0 (4.0 ”worst case”)
50 to 62.5
0.0
9 to 9
0.35 (0.8 ”worst case”)
Non-physical contact
62.5 to 62.5
0.7
50 to 50
0.7
62.5 to 50
5.0
50 to 62.5
0.3
Summary of Contents for 8265
Page 1: ...8265 Nways ATM Switch Planning and Site Preparation Guide GA33 0460 0 IBM...
Page 2: ......
Page 3: ...8265 Nways ATM Switch Planning and Site Preparation Guide GA33 0460 01 IBM...
Page 8: ...vi IBM 8265 Planning and Site Preparation Guide...
Page 10: ...viii IBM 8265 Planning and Site Preparation Guide...
Page 14: ...xii IBM 8265 Planning and Site Preparation Guide...
Page 16: ...xiv IBM 8265 Planning and Site Preparation Guide...
Page 26: ...10 IBM 8265 Planning and Site Preparation Guide...
Page 38: ...22 IBM 8265 Planning and Site Preparation Guide...
Page 70: ...54 IBM 8265 Planning and Site Preparation Guide...
Page 118: ...102 IBM 8265 Planning and Site Preparation Guide...
Page 121: ...Copyright IBM Corp 1994 1998 105 Appendix C Blank Planning Charts...
Page 122: ...106 IBM 8265 Planning and Site Preparation Guide...
Page 123: ...Appendix C Blank Planning Charts 107...
Page 124: ...108 IBM 8265 Planning and Site Preparation Guide...
Page 126: ...110 IBM 8265 Planning and Site Preparation Guide...
Page 128: ...112 IBM 8265 Planning and Site Preparation Guide...
Page 130: ...114 IBM 8265 Planning and Site Preparation Guide...
Page 132: ...116 IBM 8265 Planning and Site Preparation Guide...
Page 134: ...118 IBM 8265 Planning and Site Preparation Guide...
Page 136: ...120 IBM 8265 Planning and Site Preparation Guide...
Page 138: ...122 IBM 8265 Planning and Site Preparation Guide...
Page 140: ...124 IBM 8265 Planning and Site Preparation Guide...
Page 142: ...126 IBM 8265 Planning and Site Preparation Guide...
Page 144: ...128 IBM 8265 Planning and Site Preparation Guide...
Page 146: ...130 IBM 8265 Planning and Site Preparation Guide...
Page 148: ...132 IBM 8265 Planning and Site Preparation Guide...
Page 152: ...136 IBM 8265 Planning and Site Preparation Guide...
Page 163: ......