Viavi T-BERD/MTS 4000 V2 Parts list manual

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Quick Card
T-BERD®/MTS 4000v2 Modular Test Set
Real Time Testing with Expert OTDR
This quick card describes how to connect to a fiber under test, configure Expert OTDR settings, run
Real Time tests, and analyze results with a VIAVI T-BERD/MTS 4000v2 and 4100-series OTDR module.
Equipment Requirements:
•T-BERD/MTS-2000 or 4000 with Fiber Optics
Software Release V21.04 or greater
•E4100 Series OTDR Module
•Fiber optic cleaning and inspection tools
•Launch Cable with connectors matching the
OTDR port and Fiber Under Test (a minimum
20-meter Fiber optic patch cable or leash is
recommended)
•Optical Coupler to connect Launch Cable to
Fiber Under Test
Figure 1: Equipment Requirements
The following information is required to complete the test:
•Type of Fiber (Multimode or Single Mode)
•Type of Connectors (SC UPC, SC APC, LC UPC, etc.)
Fiber Inspection Guidelines:
•Use the VIAVI P5000i or FiberChek Probe
microscope to inspect both sides of every
connection being used (OTDR Port, Launch
Cable, bulkhead connectors, patch cords, 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 (IBYC)
Connect Launch Cable to OTDR port:
1. Inspect the OTDR port on top of the test set.
2. Inspect the fiber end face of Launch Cable.
3. Connect Launch Cable to the OTDR port.
Figure 3: OTDR Port Inspection

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Connect to Fiber Under Test (FUT):
The Launch Cable may be connected to the FUT
via an optical patch panel (OPP) or an optical
coupler:
1. If the interface to the FUT is a patch cord,
connect the patch cord to an optical coupler
with the same connector type.
2. Inspect the FUT connected to the coupler or
OPP.
3. Inspect the other fiber end face of the
Launch Cable.
4. Connect the Launch Cable to the coupler or
OPP.
Figure 4: Connecting the Launch Cable to the FUT with a coupler
Figure 5: Connecting the Launch Cable to an OPP
Launch and Configure Expert OTDR:
1. Press the Power button to start the
T-BERD/MTS test instrument.
2. Tap the EXPERT OTDR icon until it is yellow
and highlighted .
3. Tap the Setup soft key
4. Tap Display and set Distance Unit to your
desired unit of measure.
5. Tap Auto-set to configure the OTDR to auto-
configure range, pulse width, and resolution.
Figure 6: Fiber Optics Home screen
Figure 7: Expert OTDR Setup

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Product specifications and descriptions in this
document are subject to change without notice.
Run Test:
1. Tap the Real Time soft key to start the
test.
2. 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 end-face that fails the
inspection test.
3. The OTDR will perform real-time acquisitions
at the configured wavelength.
4. Tap the magnifying glass icons to zoom in
, zoom out , or auto-zoom the
display. You can also pinch and zoom with
your fingers.
5. Tap the Measurements soft key to
start Loss, ORL, or Reflectance
measurements.
6. Tap the Test roll down menu at the bottom
left screen to select a measurement type:
Loss, ORL, or Reflectance.
7. Tap and move the Aand Bcursors to change
measurement values.
•Loss and ORL are measured between the
two cursor positions.
•Reflectance is measured at the position
of the Bcursor.
8. Figure 10 shows Loss measurement, Figure
11 shows ORL measurement, and Figure 12
shows Reflectance measurement.
9. Tap the STOP soft key to stop the Real
Time measurement.
10. Tap the Real Time soft key to restart
real time measurement.
Figure 8: Expert OTDR
Figure 9: Connection Check & Real-Time Acquisition
Figure 10: Trace View, Loss Result
Figure 11: Trace View, ORL result
Figure 12: Trace View, Reflectance Result