DTX Series CableAnalyzer
Technical Reference Handbook
7-28
Setting the Reference in Loopback Mode
1
Turn on the tester and let it sit for 5 minutes. Allow
additional time if the modules have been stored above
or below ambient temperature.
2
Turn the rotary switch to SETUP; then select Fiber.
3
Select Remote End Setup; then select Loopback.
4
Turn the rotary switch to SPECIAL FUNCTIONS; then
select Set Reference. If both a fiber module and a
twisted pair or coaxial adapter are attached, select
Fiber Module next.
5
Clean the connectors on the tester and reference test
cords. Connect the reference test cords as shown on
the tester.
Notes
The Set Reference screen shows reference
connections for the selected test method.
Figure 7-13 shows connections for Method B.
The reference test cords in the tester’s diagrams
are numbered. If you want to meet TSB-140
reporting requirements, you can enter lengths for
each reference test cord number after setting the
reference.
6
Press P.
7
The View Reference screen shows the reference values
and the date and time the reference was set.
8
Press K OK.
9
The View Connections screen shows the test
connections for the selected test method.
10
To enter reference test cord lengths to meet TSB-140
reporting requirements, press J Patch Lengths.
•
On the Patch Lengths screen, enter the lengths of
the reference test cords.
•
Press N when you are done.
WCaution
Do not disconnect the reference test cords from
the tester’s output after setting the reference. If
you do, you must set the reference again to
ensure valid measurements.
To Next Page
Loading...
