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OMNISCANNER User Guide
Chapter 8 – Fiber Optic Reference
Methods
Establishing the Reference
Different methods can be used when making a reference measurement
with OMNIFIBER. The reference measurement to use depends on how
the standard defines the link, and how the network is interconnected.
There are three basic link definitions and three corresponding reference
methods.
Link Reference Multimode Single-mode Where Used
Definition Method Standard Standard
link = 2 1 jumper TIA-526-14A TIA-526-7 TIA-568-B,
cross or equivalent Method B Method A.1 ISO 11801
connects + 100Base-X,
cable plant 1000Base-X,
ATM, Fibre
Channel, FDDI,
Token Ring
link = 1 2 jumper TIA-526-14A TIA-526-7 10 Base-X,
cross or equivalent Method A Method A.2 TIA 455-
connect + 171 Method B
cable plant
link = cable 3 jumper TIA-526-14A TIA-526-7,
plant or equivalent Method C Method A.3
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