VIAVI Solutions T-BERD Manuale utente

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T-BERD/MTS 5800 Portable Network Tester

T-BERD/MTS-5800 Portable Network Tester

QUICK CARD

T1 Bit Error Rate Testing (BERT)

This quick card describes how to configure and run a T1 Bit Error Rate Test to a hard loop,

or another similarly configured T-BERD.

•T-BERD/MTS 5800 equipped with the following:

oBERT software release V30.1.0 or greater

oC5E1DS1 test option: E1/DS1 Electrical

oC5DUALPORT test option: Dual Port option

(required on T-BERD 5800-100G only)

•One of the following T1 cable sets to connect the

T-BERD 5800 DS1 Port(s) to the line under test:

oTwo (2) Bantam to Bantam cables (CB-10615)

oDual Bantam to RJ-48C cable (CB-41645)

oRJ-48C Patch cable (Straight-through or cross-over

depending upon equipment under test) Figure 1: Equipment Requirements

LAUNCH TEST

1. Press the Power button to turn on the

T-BERD.

2. Press the Test icon at the top of the

screen to display the Launch Screen.

3. Using the Select Test menu, Quick Launch

menu, or Job Manager, launch the

DS1/DS3►DS1►DS1 BERT►Terminate

test.

4. Tap to open the Tools Panel and

select .

5. Press to continue.

Figure 2: Launch Screen

Figure 3: Tools Panel

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T-BERD/MTS 5800 Portable Network Tester

T-BERD/MTS-5800 Portable Network Tester

QUICK CARD

•The following Information is needed to

configure the test:

•T1 Line Code (B8ZS or AMI)

•T1 Framing (ESF or D4)

•Clock Source (Internal or Recovered)

•Test Patterns(s)

•BER Pass/Fail Threshold

1. Press the Setup soft key on the top right

side of the screen.

2. Select the indicated folders and configure

your test as follows. Leave all other values at

default, unless specified in the work order.

3. Press the Results soft key to view the

Test Results screen.

Figure 4: Work Order

CONFIGURE TEST

Folder

Option

Value(s)

Interface

Rx Input

Term

Line Code

If unknown,

select “B8ZS”

Clock Source

If unknown,

select

“Internal”

Clock Offset

0 ppm

LBO

0 dB

Framing

If unknown,

select “ESF”

Pattern

Pattern Mode

ANSI

Pattern

QRSS

Figure 5: Setup, Interface

Figure 7: Setup, Pattern

Figure 6: Setup, Framing

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T-BERD/MTS 5800 Portable Network Tester

T-BERD/MTS-5800 Portable Network Tester

QUICK CARD

RUN TEST

1. Using drop-down menus , select

“Interface/Signal” for the right results display.

2. Press the Restart soft key .

3. Verify the following:

►Summary LED is green.

►Signal Present LED is green.

If the LED is red, check your cables.

Tx and Rx may be reversed.

►Frame Sync LED is green.

►RX Frequency (Hz) = 1544000 +/- 50 Hz.

4. Using drop-down menus , select

“Payload/BERT” for the right results display.

5. Allow the test to run for desired duration and

verify the following:

►Pattern Sync LED is green.

►Bit/TSE Error Rate result does not

exceed your required threshold.

(0.00E+00 if pass/fail threshold unknown)

Figure 10: Results, Interface/Signal

Figure 8: RJ-48C Crossover Cable Figure 9: RJ-48C Straight Through Cable

CONNECT TO LINE UNDER TEST

•T-BERD 5811AND T-BERD 5822 mainframes have both RJ-48C and bantam ports. You may use

Bantam to Bantam, Dual Bantam to RJ-48C, RJ-48C straight through, or RJ-48C crossover cables to

connect the T-BERD to the line under test.

•T-BERD 5882 and T-BERD 5800-100G mainframes have an RJ-48C port. Dual Bantam to RJ-48C,

RJ-48C straight through, or RJ-48C crossover cables may be used.

Figure 11: Results, Payload BERT

VIAVI//Public

T-BERD/MTS 5800 Portable Network Tester

T-BERD/MTS-5800 Portable Network Tester

QUICK CARD

Product specifications and descriptions in this

document are subject to change without notice.

Patented as described at viavisolutions.com/patents

To reach the VIAVI office nearest you,

visit viavisolutions.com/contact

+1 844 GO VIAVI

(+1 844 468-4284)

CREATE REPORT

6. In the T-BERD’s Quick Config menu, change

“Pattern” to the next value in the test plan.

7. Press the Restart soft key to reset results.

8. Allow test to run for desired duration and verify

the following:

►Pattern Sync LED is green.

►Bit/TSE Error Rate does not exceed

your required threshold.

(0.00E+00 if pass/fail threshold unknown)

9. Repeat steps 6 through 8 for all Patterns in the

test plan. Patterns may include:

►QRSS: Simulates live T1 traffic

►All Zeros: Tests for equipment

mis-optioned forAMI

►Multipat: Five commonly used test

patterns to allow BER testing without

having to select each test pattern

individually. Patterns are: All Ones, 1:7,

2 in 8, 3 in 24, and QRSS.

Results are shown in the “DS1/Multipat”

results display.

►Delay: Measures Round Trip Delay (RTD)

instead of Bit Errors (RTD values are

shown instead of BER in the

“Payload/BERT” results display)

Figure 12: Results, Quick Config

Figure 13: Results, DS1/MultiPat

1. Tap to open the Reports Panel and

select . .

2. Tap .

3. A report will be saved to the T-BERD 5800’s

/bert/reports folder.

Figure 14: Create Report

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