JDS Uniphase SmartClass E1, Руководство пользователя

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Chapter 5 Datacom Testing
About data communications testing
52 SmartClass E1 Tester User’s Guide
About data communications testing
The SmartClass E1/Datacom Tester provides the tools you need to turn up and
maintain data services. The Data Communications option offers the following
features and capabilities:
– End-to-End Testing—Using the E1/Datacom Tester, you can analyze the
performance of an entire digital link in both directions, allowing you to
isolate problems to a specific direction.
– BER testing—Using the E1/Datacom Tester, you can BER test a variety of
data communication interfaces to verify error free performance and trans-
mission by transmitting ANSI, ITU, and user programmable test patterns.
– Asynchronous timing— You can set up the E1/Datacom Tester to use
asynchronous timing when testing the RS-232/V.24 standard.
– Synchronous timing—You can set up the E1/Datacom Tester to use
synchronous timing, and then specify a valid clock source for the interface.
– Flow control—You can set up the E1/Datacom Tester to use out of band
flow control by interpreting signals from selected leads on the E1/Datacom
Tester and its link partner. You can also specify inband flow control by
transmitting XON/XOFF characters.
– Round trip delay measurement—Using the E1/Datacom Tester, you can
transmit and loop back a Delay pattern, and then measure the time it takes
to receive the pattern.
– Self Loop—Before you start testing, you can perform a self loop to validate
the unit and the selected test interface on the E1/Datacom Tester.
– User specified test intervals—You can set up the E1/Datacom Tester to run
a test continuously, or to run a test for a specific timed interval lasting up to
seven days.
Launching the datacom application
The following procedure describes how to launch the datacom application.
To launch the datacom application
1 Power ON your tester by pressing and holding the key for a few
seconds.
The SmartClass E1/Datacom splash screen appears for a few seconds,
and then the SmartClass E1/Datacom main menu appears.
2 Select Data Communication . The Data Communication menu appears.
3 Select DataCom BERT .
A message briefly appears stating that the unit is launching the test appli-
cation.
NOTE:
Datacom is a factory-installed option. It only appears if you have purchased
the E1/Datacom configuration (see
“Configurations” on page 3 ).