Fluke DTX-1800, Техническое справочное руководство, Страница: 248 / 398

DTX Series CableAnalyzer
Technical Reference Handbook
8-40
Setting the Reference in Far End Source Mode
1 Turn on the tester and smart remote and let them sit
for 5 minutes. Allow additional time if the fiber
modules have been stored above or below ambient
temperature. For other sources, warm up according to
the manufacturer’s recommendations.
2 Turn the rotary switch to SETUP; then select Fiber Loss.
3 Select Remote End Setup; then select Far End Source.
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 and inspect the connectors on the tester, source,
and test reference cords. Connect the tester and source
as shown on the tester.
Notes
The Set Reference screen shows reference
connections for the selected test method.
Figure 8-19 shows connections for the 1 Jumper
method.
The test reference cords in the tester’s diagrams
are numbered. If you want to meet TIA reporting
requirements, you can enter lengths for each test
reference cord number after setting the reference.
6 Hold down the button on the smart remote’s fiber
module for 3 seconds to turn on the output port at
850 nm (DTX-MFM2/GFM2) or 1310 nm (DTX-SFM2).
Press again to switch to 1300 nm (DTX-MFM2),
1310 nm (DTX-GFM2), or 1550 nm (DTX-SFM2).
The LED is red for the shorter wavelength and green
for the longer wavelength.
For other sources, verify the output is set to the correct
wavelength and is in continuous-wave mode.
7 Press
P
, highlight the appropriate wavelength; then
press
P
again.
The View Reference screen shows the reference values
and the date and time the reference was set.
8 Press
K
OK.
The View Connections screen shows the test
connections for the selected test method.
9 To enter test reference cord lengths to meet TIA
reporting requirements, press
J
Patch Lengths.
10 On the Patch Lengths screen, enter the lengths of the
test reference cords. Press
N
when you are done.