Technical data

316 Chapter 11
E1 Analyzer
Making E1 Measurements
E1 Analyzer
cables can reduce the signal levels during the diagnostic tests, and this could
case a false failure.
If any of the three tests listed above fail, contact your service center.
To Set Up E1 Diagnostics
Patterns
Many test patterns are available to 'stress' the circuit in a unique way or to gain
maximum insight into a particular problem. Much has been written to guide the
troubleshooter to select the proper pattern. Below is a list of the patterns available in
the test set.
•2E6-1
•2E9-1
• 2E11-1
• 2E15-1
• 2E20-1
• QRSS- A pseudorandom pattern that simulates live traffic on a circuit. It is a
very common test pattern
• 2E23-1
• All 0’s - A pattern that is often selected to verify HDB3 provisioning.
Step Notes
1[Mode]
2 [Backhaul]
3 [E1 Analyzer]
4 [Tests]
5 [Verification] The E1 Loop Cable connection
diagram shown on the instrument
display, and the accompanying
explanation, contain the information
you need to set up the test.
6 [Continue] The test is performed and results are
reported on the screen.