Fluke OF-500-01 OptiFiber Technical Reference Handbook page 81

4 Clean the tester's OTDR port and launch fiber
connectors.
5 Connect the launch fibers to the tester's OTDR port as
shown on the screen and in Figure 3-2, 3-3, or 3-4; then
t
press .
6 The tester attempts to automatically identify the
launch and receive fiber ends based on the launch
method you selected. If necessary, you can change
these settings on the SET LAUNCH EVENTS screen, as
follows:
W
Do not set the launch or receive event to a hidden
event. Do not set the receive event to an event
followed by a hidden event. Doing so may make
length and loss results unreliable.
The tester might not identify a low-reflectance
connection, such as an angled physical contact
(APC) connection, as a launch/receive event. These
connections may show as loss events, which you
can manually select to be the launch/receive event.
•
For Launch Only compensation, highlight the event
that is the end of the launch fiber; then press
Caution
Note
B
•
For Launch + Receive compensation, highlight the
event that is the end of the launch fiber and the
beginning of the receive fiber; then press
as necessary to move or set the launch and receive
fibers.
•
For Launch + Fiber + Receive compensation, highlight
the event that is the end of the launch fiber; then press
B
Set Launch or
the event that is the beginning of the receive fiber;
then press
To see where the markers are set on the trace, press
A
View Trace.
s
7 Press
Launch Fiber Compensation is enabled after you
perform the compensation function.
To view the launch compensation settings, press
select Set Launch Fiber Compensation; then press
Settings.
You should run the compensation function again if you
start using a different launch or receive fiber.
Figure 3-5 shows an example of an OTDR trace with launch
and receive markers enabled.
.
Using the OTDR
Setting Up for OTDR Testing
B
Move Launch. Next, highlight
C C
Set Receive or Move Receive.
C
.
; then press OK
3
B C
and
F
,
A
View
3-5