Fluke DTX-1800 Technical Reference Handbook page 245

A
The overall result for the test.
B
Overall results for the fiber (E is PASS, F is FAIL):
• Loss (Output -> Input): Loss on the fiber connected
between the tester's output and input ports.
• Length: The length of the fiber between the tester's
output and input ports. To see the propagation delay,
select the length result.
• Propagation delay is the time taken for a signal to
travel between the tester's output and input ports.
Propagation delay is measured in nanoseconds (ns).
C
The overall result for the loss measurement.
Certifying Fiber Optic Cabling
Autotest in Loopback Mode
D
The measured loss for the fiber.
If loss is negative, set the reference again and retest
the cabling. See page 10-3 for more information on
negative loss.
E
The maximum loss allowed by the selected test limit.
F
The difference between the limit and the measured loss.
Margin is negative if the loss exceeded the limit.
G
Loss meters for the two wavelengths. Values in the red
zone exceed the selected test limit.
H
L
Press View Ref. to view the reference information.
Note
8
8-37