Viavi T-BERD 5800 Parts list manual

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Quick Card
T-BERD 5800 Network Tester
Datacom Bit Error Rate Testing (BERT)
This quick card describes how to configure the T-BERD 5800 as Data Terminal Equipment (DTE) and run
a Bit Error Rate Test on a Datacom interface using typical configuration settings. Please refer to the T-
BERD 5800 Testing Manual for an explanation of all settings.
Equipment Requirements:
•T-BERD 5800 equipped with the following:
oBERT software release V28.1 or greater
•Datacom Expansion Module (VIAVI Part# C5DEM)
•USB Type B to USB Type A cable
•One of the following Datacom cables to connect the
Datacom Datacom Expansion Module to the line
under test:
oRS-232/V.24, EIA-530 Cable
(VIAVI Part# CB-21148994-002)
oRS-449/V.36 Cable (VIAVI Part# CB-21144332-
002)
oV.35 Cable (VIAVI Part# CB-21148995-002)
Figure 1: Equipment Requirements
The following information is required to complete the test:
•Interface (RS-232/V.24, EIA-530, RS-449/V.36, or V.35)
•Signal Mode (Balanced or Unbalanced)
•Timing Mode (Synchronous or Asynchronous)
•Rx Timing Source (Internal or Interface)
•Tx Timing Source (Internal or Interface)
•Out of Band Flow Control (On or Off)
•Test Patterns(s)
•BER Pass/Fail Threshold
Connect to Line Under Test:
•Connect the USB Type B to USB Type A cable to the Datacom Module and the USB port on the
side of the T-BERD 5800.
•Connect the desired Datacom cable to the Datacom Expansion Module.
•Use the connector labeled “To DCE” to connect to the line under test.

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Launch and Configure Test:
1. Press the Power button to turn on the
test set.
2. Tap the Datacom icon at the top
of the launch screen.
Figure 2: Launch screen
3. Press the Setup Soft Key on the top
right side of the screen.
4. Tap .
5. Press to continue.
Figure 3: Reset Test to Defaults
6. Select the indicated tabs and configure your test as follows. Leave all other values at default,
unless specified in the work order.
Folder
Option
Value(s)
Interface
Interface
RS-232/V.24, EIA-530, RS-449/V.36, etc.
Timing
Timing Mode
Synchronous or Asynchronous
Rx Timing Source
Interface (RT)
Tx Timing Source
Select Interface (ST) for Synchronous timing,
select Internal (Synth) for Asynchronous timing.
Synthesizer Frequency
Enter frequency in kHz; i.e. 9.6 kHz for 9600 bps.
Pattern
Enter the first Pattern in your test plan (QRSS,2^6-1, etc.)
Note: 2^6-1 = 63, 2^9-1 = 511, 2^11-1 = 2047

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Product specifications and descriptions in this
document are subject to change without notice.
7. Press the Results Soft Key to view the
Test Results screen.
8. Tap the Signal Lead tab at the bottom of
the screen and tap the RTS and DTR
buttons.
9. Press the Restart soft key .
Figure 4: Test Results Screen, Signal Leads
10. Using the drop-down menus, select
“HS Datacom/BERT” for the right results
display.
11. Allow the test to run for desired duration
and verify the following:
•Pattern Sync LED is green.
•Bit Error Rate result does not exceed
your required threshold. (0.00E+00 if
pass/fail threshold unknown)
Figure 5: Test Results Screen, HS Datacom/BERT
12. In the T-BERD’s Quick Config menu,
change “Pattern” to the next value in the
test plan.
13. Press the Restart soft key to reset
results.
14. Allow test to run for desired duration and
verify the following:
•Pattern Sync LED is green.
•Bit Error Rate does not exceed your
required threshold. (0.00E+00 if
pass/fail threshold unknown)
15. Repeat steps 12 through 14 for all Patterns
in the test plan.
Figure 6: Test Plan