Fluke OF-500 OptiFiber, Техническое справочное руководство

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Using the OTDR
Setting Up for OTDR Testing
3
3-5
Setting the Launch Fiber Compensation
1 Select the fiber type to be tested on the Cable tab in
Setup.
2 Press
F
; then select Set Launch Fiber
Compensation .
3 On the SET LAUNCH METHOD screen highlight the
type of compensation you want to do, but do not
press
t
.
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 press
t
.
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
Caution
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.
•
For Launch Only compensation, highlight the event
that is the end of the launch fiber; then press
B
.
•
For Receive compensation, highlight the
event that is the end of the launch fiber and the
beginning of the receive fiber; then press
B
and
C
as necessary to move or set the launch and
receive fibers.
•
For Fiber + Receive compensation, highlight
the event that is the end of the launch fiber; then
press
B
Set Launch or
B
Move Launch . Next,
highlight the event that is the beginning of the
receive fiber; then press
C
Set Receive or
C
Move Receive .
-continued-