VeEX RXT-6000e, User Manual

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available when Rx is optical and Tx is in PDH mode, (i.e. a Mux).
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6.6.4 Auto-Config
The Auto-Configuration function is described below.
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 test
set will assume live traffic and will not search for a test pattern.
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