Fluke DTX Series - B. Loss Test Methods for Fiber Cabling; Introduction

B-1
Appendix B
Loss Test Methods for Fiber Cabling
Introduction
Note
The following discussion uses TIA/EIA-526
terminology for the names of the three
common test methods. See Appendix A for a
cross-reference of the method names in various
standards.
The number of fiber connections represented in loss test
results depends on the method used for making
reference and test connections. This appendix describes
the three common methods, A, B, and C, which are
defined in the ANSI/TIA/EIA-526-14A multimode
standard, and their equivalents, A.2, A.1, and A.3, which
are defined in the ANSI/TIA/EIA-526-7 singlemode
standard.
This appendix also describes alternate reference and test
connections you can use for all types of connectors,
including installations that have different connector
styles at the patch panels and outlets.
Use the Test Method setting on the tester’s Fiber menu in
SETUP to record the method used. This setting does not
affect loss results. It is only saved with the results to
record which method you used.
Note
ANSI/TIA/EIA-526-14A and 526-7 specify Method
B for measuring loss on multimode premises
fiber and Method A.1 for singlemode premises
fiber, respectively. All reference and test
procedures described in the DTX CableAnalyzer
documentation produce Method B/A.1 results.