Versiv Series Cabling Certification Product Family
Technical Reference Handbook
322
Launch + Fiber + Tail: Use this method for links that have
different connectors on the near and far ends of the fiber.
Manual Entry (APC): Lets you enter the lengths of the launch
and tail cords without doing an OTDR test to find the ends of
the cords. See “How To Enter Lengths Manually” on page 327.
When you use launch/tail cords that have connectors with low
reflectance, such as APC connectors, the tester possibly will not
find the correct launch and tail events. If this occurs, enter the
lengths of the cords manually.
Note
Launch + Tail compensation usually gives the most
accurate measurements.
How to Set Up the Launch Compensation Function
1 Select launch and tail cords that have the same type of fiber
as the fiber you will test.
2 On the home screen, tap the test setup panel. On the
CHANGE TEST screen, select an OTDR test to change, then tap
EDIT. Or to set up a new OTDR test, tap NEW TEST then tap
Auto OTDR, Manual OTDR, or DataCenter OTDR.
3 On the TEST SETUP screen, tap the Launch Compensation
control to set it to On.
4 On the TEST SETUP screen, make sure the Fiber Type is
correct. Change it if necessary.
5 On the TEST SETUP screen, tap SAVE.
6 On the home screen, tap SET COMP.
7 On the SET LAUNCH METHOD screen tap the type of
compensation you want to do. For descriptions of the
methods, see “Methods of Launch Compensation” on page
321.