Viavi T-BERD/MTS 4000 Manual de usuario
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T-BERD/MTS 4000 Handheld Modular Test Set
T-BERD/MTS-4000 Handheld Modular Test Set
QUICK CARD
►Use the VIAVI P5000i or FiberChek Probe
microscope to inspect both sides of every
connection being used (OCC Port, Launch
Cable, bulkhead connectors, patch cables, etc.)
►Focus fiber on the screen. If dirty, clean the
end-face.
►If it appears clean, run inspection test.
►If it fails, clean the fiber and re-run inspection
test. Repeat until it passes.
Figure 2: Inspect Before You Connect
Figure 1: Equipment Requirements
4100-series OTDR Expert OTDR Settings
This quick card describes how to connect to a fiber under test and use the Smart Test
Assistant to configure test setups, run tests, and analyze results on a VIAVI T-BERD/MTS
4000 equipped with a 4100-series OTDR module.
EQUIPMENT REQUIREMENTS
FIBER INSPECTION GUIDELINES
►T-BERD/MTS 4000 equipped with the
following:
•Fiber Optics Software Release V21.14 or
greater
•4100 Series OTDR Module
•Fiber optic cleaning and inspection tools
►Minimum 20-meter Fiber optic patch cable
(Launch Cable)
►Optical Coupler to connect Launch Cable to
Fiber Under Test
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T-BERD/MTS 4000 Handheld Modular Test Set
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2
CONNECT TO FIBER UNDER TEST (FUT)
All fibers and connectors should be inspected and
clean prior to connection, as described on page 1.
The OTDR may be connected to the FUT via an
optical patch panel (OPP) or a coupler:
1. Inspect the OTDR port on top of the test set.
2. Inspect the fiber end face of the Launch Cable.
3. Connect the Launch Cable to the OTDR port.
4. If the interface to the FUT is a patch cord,
connect the patch cord to an optical coupler.
5. Inspect the FUT connected to the coupler or
OPP port and the fiber end face of the Launch
Cable.
6. Connect the Launch Cable to the coupler or
OPP port.
Figure 5: Connecting to OPP
LAUNCH TEST
1. Press the ON/OFF button to start the test
set.
2. Press the Home button to display the Home
view with the EXPERT OTDR icon.
3. Tap the EXPERT OTDR icon until it is
yellow and highlighted.
Figure 6: Fiber Optics Home Screen
Figure 4: Connecting to coupler
Figure 3: OTDR Port Inspection
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T-BERD/MTS 4000 Handheld Modular Test Set
T-BERD/MTS-4000 Handheld Modular Test Set
QUICK CARD
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1. Tap the Setup soft key .
2. Tap Acquisition and configure the following
basic settings for the trace:
➢Laser: Choose the wavelength(s) to test.
➢Acquisition Mode:
oSelect Manual to manually to enter
Range and Pulse width settings.
oSelect Auto to automatically configure
Range, Pulse width, and SmartAcq
settings.
oSelect SmartAcq to perform an
acquisition with a short pulse width,
followed by an acquisition with a longer
pulse width. The first acquisition allows
events at the beginning of the fiber to be
detected more precisely.
➢Acq. Time: Select Realtime, Auto or the
desired time to sample the fiber.
➢Launch Cable: Select and enter Length
if you are using a Launch Cable.
Enter 20 meters or 66 feet for Viavi supplied
20-meter launch cables.
3. Tap Alarms and configure pass/fail criteria:
➢Set Alarm Level to Fail.
➢Set Threshold to Default, or select alternate
alarm thresholds (TIA-568.3, User, etc.)
4. Tap Display and set Distance Unit to your
desired unit of measure.
CONFIGURE TEST
Figure 7: Acquisition settings
Figure 8: Alarm Settings
Figure 9: Display settings
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T-BERD/MTS 4000 Handheld Modular Test Set
T-BERD/MTS-4000 Handheld Modular Test Set
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4
RUN TEST
1. Tap the Start soft-key to start the test.
After auto-configuration, the OTDR will perform
a connection check to ensure that the
connection is Good. If the Connection is Bad,
disconnect the launch cable, and reconnect as
described on pages 1 and 2, cleaning every
fiber end-face that fails the inspection test.
2. After connection checks, the OTDR will perform
acquisitions at the configured wavelengths.
3. Tap the SmartLink tab at the left screen top to
select SmartLink view.
4. Set the toggle switch at the right screen top to
Event Line.
5. View SmartLink results:
►The FUT is displayed as a series of icons
representing events (front connector,
launch cable, connectors, splices, bends,
etc.) and distances. Swipe left or right to
view additional icons on spans with more
than 4 events.
►The center of the display shows summary
results for the entire span for each
acquisition or wavelength. Tap any event
in the upper display to view detailed
results for that specific event.
►Events and Acquisitions are marked with
a green check or red xbased on the
Alarms setting.
Note: the icon-based view may not be
available on older T-BERD/MTS 4000s when
acquisition Mode = SmartAcq.
Rerun the test with Manual or Auto
Acquisition or contact VIAVI to upgrade your
unit to add this feature.
Figure 11: SmartLink View, Summary Results
Figure 12: SmartLink View, Event Results
Figure 10: Start Test
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T-BERD/MTS 4000 Handheld Modular Test Set
T-BERD/MTS-4000 Handheld Modular Test Set
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5
6. Tap the Trace tab at the left screen top to select
Trace view.
7. Set the toggle switch at the screen top to Info.
8. Tap the magnifying glass icons to zoom in ,
zoom out , or auto-zoom the display.
You can also pinch and zoom with your fingers.
9. View trace results:
►Trace information is shown in the upper
display. Tap 1 or 2 to select the acquisition
(wavelength or pulse width) for results
display.
►Graphical results (dB versus distance) are
shown in the center display.
►A color-coded Event table is shown in the
lower display. Swipe up and down to view
all events.
10. Tap the Table tab to select Table view.
11. Set the toggle switch at the right screen top to
the center (off) position.
12. View table results:
►Distance, Loss, and Reflectance are shown
for each event.
►Tap the toggle switch to view All events or
Failed events.
Figure 13: Trace view
Figure 14: Table view
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T-BERD/MTS 4000 Handheld Modular Test Set
T-BERD/MTS-4000 Handheld Modular Test Set
QUICK CARD
© 2021 VIAVI Solutions, Inc,
Product specifications and descriptions in this
document are subject to change without notice.
Patented as described at viavisolutions.com/patents
Contact Us
To reach the VIAVI office nearest you,
visit viavisolutions.com/contact
+1 844 GO VIAVI
(+1 844 468-4284)
SAVE RESULTS
1. Tap the Fast Report soft key .
2. Enter Job Id, Cable ID, Fiber Number,
Locations, and Direction.
►The Job Id field identifies the Job and
creates a folder by the same name.
Results are saved to this folder.
►The Cable Id, Fiber Id, and Fiber Number
fields determine the file name.
3. Set Dir. Naming to disk/[Job_Id]. Use the
abc/[auto] button to toggle between test entry
and field entry,
4. Set Save Mode to pdf.
5. Tap Save.
6. Tap to accept the default filename and
save test results.
7. Tap the Fast Report soft key again to return to
the results display.
8. Press the Home button to return to the
Home view.
Figure 17: Fast Report
Figure 16: Directory Naming
Figure 15: Report Settings
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