JDS Uniphase SmartClass E1, User Manual

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Chapter 5 Datacom Testing
BER Testing
SmartClass E1 Tester User’s Guide 63
3 Connect the other end(s) of the adaptor cable to the test access point.
You have finished connecting the cables.
BER Testing
Performing a bit error rate test (BERT) involves configuring the test settings,
including logic error insertion; connecting the E1/Datacom Tester to the a
circuit; starting the test and inserting logic errors; and observing the results.
To do a bit error rate test
1 Set the test mode to DTE or DCE Emulation. See “Specifying the test
mode” on page 53 .
2 Select a pattern. See “Specifying a BERT pattern” on page 55 .
3 Specify the other settings on the Configuration menu, as needed.
See
“Specifying the interface standard” on page 53 .
See “Specifying timing parameters” on page 54 .
See “Specifying polarity settings” on page 55 .
See “Specifying data parameters” on page 57 .
See “Specifying async settings” on page 58 .
See “Specifying flow control settings” on page 59 .
See “Specifying G.821 performance settings” on page 60
4 Specify how errors will be inserted. See “Specifying error settings” on
page 60 .
5 If you want to run the test for a specific amount of time, configure the timed
test settings. See
“Timed testing” on page 25 .
6 If this is your first test of the day, perform a self test on the E1/Datacom
Tester. See
“Performing a self test” on page 61 .
7 Connect the E1/Datacom Tester to the circuit. See “Connecting the E1/
Datacom Tester to the circuit” on page 61 .
8 From the Action menu, select Restart .
9 Verify that the Sync LED illuminates green.
10 To insert errors, press the * Action key to view the Error menu, and then
select press 1 .
This will do one of the following:
–
Enable or Disable Bit Error Rate Insertion — begin inserting bit
errors at the rate specified on the Error Settings menu (appears only if
the Rate Type is set to “Rate”).
– Bit Error Multi Insert — inserts multiple bit errors with each press
(appears only if the Rate Type is set to “Multiple”).
– Bit Error Insert — inserts one bit error with each press (appears only if
the Rate Type is set to “Single”).
11 From the BERT menu, select Results and then the BERT category.