Chapter 4 E1 Testing
Terminate testing
40 SmartClass E1 Tester User’s Guide
Terminate testing
In Terminate mode, you can use the SmartClass E1 to perform bit error rate
testing (BERT or BER testing) on E1 circuits, and timeslots within the E1
circuit. You can test for bit errors, code errors, frame errors, and CRC errors (if
applicable).
In Terminate mode, it is assumed that there is either a far-end loopback or
another test set terminating the far end. This allows you to qualify E1 circuit
error performance by testing for bit errors, code errors, CRC errors, FAS
errors, MFAS errors, and E-BIT errors (if applicable) on E1 lines.
The following procedure describes how to perform a BER test.
To perform a BER test
1 Launch the BERT application. See “Launching an E1 test application” on
page 28.
2 On the Configuration menu, select Test Mode.
A list of test modes appears.
3 Select Terminate.
4 If you are performing an end-to-end test, you can connect a test set at
each end, or you can connect a single test set at the near end and estab-
lish a physical loop on the far end device.
For this test, use only the RX/TX1 connector.
5 To configure the test, do one of the following:
– If you want the E1 Tester to configure the interface, framing, and
pattern settings automatically, on the test menu, select Action, and
then select Auto Configure.
The unit will attempt to automatically configure the interface, framing,
and pattern. If the Auto Configure succeeds, proceed to step 8.
If this attempt fails, the E1 Tester will continue it’s attempt to configure
the framing settings, and the pattern will default to Live. You can also
configure the setting manually by selecting Configuration, and then
proceed with step 6.
– If you want to configure the interface, framing, and pattern settings
manually, on the test menu, select Configuration, and then proceed
with step 6.
6 Configure the interface settings. See “Specifying interface settings” on
page 30.
7 Specify the following settings for the test:
–Framing, see “Specifying E1 framing settings” on page 31.
– Pattern, see “Specifying a BERT pattern” on page 33.
– Performance settings, see “Specifying performance settings” on
page 36.
8 Configure the E1 ABCD/Sa settings. See “Specifying E1 signaling (ABCD/
Sa) settings” on page 32.
9 Configure the defect or anomaly settings. See “Specifying Error/Alarm
settings” on page 35.
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