Viavi T-BERD/MTS 5800 Manual de usuario

VIAVI Solutions

Quick Card

T-BERD®/MTS 5800 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 5800 and 4100-series OTDR module.

Equipment Requirements:

•T-BERD/MTS-5800 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

test instrument.

2. Tap the Fiber Optics icon in the

Status Bar at the top of the screen.

3. Tap the purple >on the left screen side

to display the Fiber Optics Home screen.

4. Tap the EXPERT OTDR icon until it is yellow

and highlighted .

5. Tap the Setup soft key

6. Tap Display and set Distance Unit to your

desired unit of measure.

7. 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

VIAVI Solutions

(+1 844 468 4284)

To reach the VIAVI office nearest you,

visit viavisolutions.com/contacts.

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 up 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

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