VeEX VePAL TX300, User Manual

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Auto-config tab
The
Auto-Config
function automatically sets the receiver of the test set. A search for SDH and PDH signals at both the electrical
or optical inputs is performed to determine the signal structure. For electrical signals, both Terminated and PMP voltage ranges
are searched and supported.
Procedure
Tap on the
Start
button to begin the search. The received signal is checked for network type, hierarchy and bit
rate, payload structure, payload framing, test pattern and signal level. If the search is successful, a “PASS” result is displayed.
Search parameters and criteria
Interface:
Checks physical parameters (bit rate line code).
Mapping:
Checks mapping structure using the signal label and pointer bytes.
Payload:
Only test patterns defined in ITU-T or ANSI standards will be recognized. If no test pattern is detected, the unit
assumes live traffic.
PDH Signals:
Unframed or framed payloads at all hierarchies. For 1.5M signals containing 64kbps timeslots, the TX300/e will
assume live traffic and will not search for a test pattern.
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