JDS Uniphase SmartClass E1, User Manual

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Chapter 4 E1 Testing
About E1 testing
28 SmartClass E1 Tester User’s Guide
About E1 testing
The SmartClass E1 tester is intended to be used to commission and maintain
E1 circuits. Typically this involves out-of-service testing to ensure that the
physical layer is clean and there are no problems with network equipment or
improper provisioning.
You can use the SmartClass E1 in the following ways:
– To terminate a circuit, and then loop back to another SmartClass unit or
piece of network equipment to perform BER testing.
– To perform BER analysis end-to-end between two SmartClass units (typi-
cally requires two technicians) with analysis performed in both directions.
This allows you to easily isolate faults on the circuit.
– To passively monitor one or two E1 circuits (in-service testing) by exam-
ining transmission layer metrics such as CRC and frame errors or timing
slips.
– To perform BER testing on individual timeslots within an E1 circuit.
– To perform line loopback testing to monitor the circuit.
– To measure an E1 pulse and display a graph of the pulse shape
Launching an E1 test application
The following procedure describes how to launch an E1 test.
To launch an E1 test
1 Power ON your tester by pressing and holding the key for a few
seconds.
The SmartClass E1 splash screen appears for a few seconds, and then
the SmartClass E1 main menu appears.
2 Select E1 Measurements . The E1 Measurements menu appears.
3 Select an application; for example, E1 BERT .
A message briefly appears stating that the unit is launching the test appli-
cation.
A test menu appears for the application, listing the following options:
– Configuration. Select this option to configure your test.
– Results. Select this option to observe test results associated with your
test.
– Error/Alarm. Select this option to insert errors or alarms as you test.
This is only available in the E1 BERT application.
– Action. Select this option to perform key actions required for your test,
such as starting or restarting a test, starting traffic or looping up a unit.
You can also press the Action button at any time to view a menu of
actions applicable to your test.
The E1 test application is launched.