Fluke OF-500-01 OptiFiber, Technical Reference Handbook, Page: 174 / 278

OF-500 OptiFiber Certifying OTDR
Technical Reference Handbook
7-22
Setting the Reference in Loopback Mode
1 Turn on the tester and let it warm up for 5 minutes.
2 On the Loss/Length tab in Setup set REMOTE END
SETUP to Loopback.
3 Clean the tester's OUTPUT connector and the reference
test cord connectors.
4 Press
F
; then select Set Loss/Length Reference.
5 Make the connections shown on the SET REFERENCE
screen and in Figure 7-9; then press
t
.
6 Optional: From the TEST SETUP screen, you can enter
reference test cord lengths to meet TSB-140 reporting
requirements:
Use
L
to highlight a reference test cord number,
press
t
; then enter a length. Press
N
when you are
done.
7 Press
C
OK to leave the TEST SETUP screen.
W
Caution
Do not disconnect the reference test cords from
the tester after setting the reference. If you do,
you must set the reference again to ensure valid
measurements.
See “About Setting the Reference” on page 7-10 for more
information about referencing.