Atec Fluke-OF-500 - Manual (Page 78)

OF-500 OptiFiber Certifying OTDR
Users Manual
68
Loss/Length Testing in Loopback Mode
1 Turn on the tester and let it warm up for 5 minutes.
2 On the HOME screen, press A Change Test; then
select Loss/Length.
3 Choose settings for the fiber to be tested. Press S ;
then set the following on the tester’s Cable tab:
•
FIBER TYPE: Select the fiber type to be tested.
•
MANUAL CABLE SETTINGS (index of refraction
and backscatter coefficient): Disable to use the
values defined in the selected fiber type, which are
suitable for most applications.
4 Set the following on the tester’s Loss/Length tab in
Setup:
•
TEST LIMIT: Select an appropriate limit.
•
REMOTE END SETUP: Set to Loopback mode.
• THIS UNIT: Set to Main.
•
BI-DIRECTIONAL: Enable this setting if you want to
save bi-directional results.
• TEST METHOD: Refers to the number of adapters
that are represented in the loss results. Select
Method B (multimode) or A.1 (singlemode) if you
use the reference and test connections shown in
this manual. See the online help or the Technical
Reference Handbook for details.
• CONNECTOR TYPE: Select connector type used in
the cabling to be tested. Select General if the exact
type is not listed.
•
NUMBER OF ADAPTERS and NUMBER OF SPLICES:
Enter the number of adapters and splices that will
be added to the fiber path after the reference is set.
See “Setting the Number of Adapters and Splices”
on page 56 for details.
5 Clean the tester's OUTPUT connector and the reference
test cord connectors.
6 Press F ; then select Set Loss/Length Reference.
Connect the reference test cords as shown on the screen
and in Figure 28; then press
t .
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