Tektronix TekRanger 2 TFS3031, Service Manual

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Performance Check – TekRanger 2 (serial nos. B052000 and above)
TFS3031 TekRanger/TekRanger 2 Service Manual
4–53
Multimode Event-Detection Check
NOTE . If the instrument has two wavelengths, this check must be done on both
wavelengths.
1. Clean the connector on the TFS3031 and the TFS3031 multimode
event-detection/dead zone test fixture.
2. Connect the TFS3031 to the event-detection test fixture and turn on power to
the instrument.
3. Check that loss at the front-panel connection is minimized (0.75 dB or less).
a. Press the
Setup
softkey to display the Test Setup menu, and set the
range to 1 km and the pulse width to 5 m. Select 1300 wavelength, or
850 if option 01. Press
Exit
.
b. Press and hold the START/STOP button to start a real-time acquisition.
c. If front-panel loss is greater than 0.75 dB, clean the fiber connector and
the laser output port.
4. Press the Setup softkey, then press
SELECT
if necessary to display the Test
Setup menu.
5. Select 1300nm wavelength, or 850 nm if option 01.
6. Set Fiber Scan to IntelliTrace.
7. Press the
Exit
softkey.
8. Press the
START/STOP
button.