Users Manual Owner manual

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Appendix C: Reference Methods for
Fiber Cabling
Introduction
Notes
The following discussion uses the 1, 2, and 3 jumper
terminology for the names of the three common test
methods. See Appendix B for a cross-reference of the
method names in various standards.
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. Both are 1 jumper reference methods.
The number of fiber connections represented in loss test results
depends on how many test reference cords you use to set the
reference. This appendix describes the three common reference
methods: 1, 2, and 3 jumper.
Use the Reference Method setting on the tester’s TEST SETUP
screen to select the method you will use. This setting does not
change the loss measurements, but it can change the PASS/FAIL
result for test limits that use a calculated loss limit. For all test
limits, the tester saves this setting to show the reference method
you used.