The
Auto-Config
function automatically configures the test set’s interface to match the received signal. 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 white
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.
6.6.5 Service Disruption Test (SDT)
SDT Setup
A service disruption is triggered by any qualifying error or alarm determined by the user and continues to count until the error-free
condition (Gate Time) is met. If SDT is enabled and alarm/error triggers are selected, the results will appear in the Results
section under the SDT tab.
RXT-3900 e-Manual D07-00-111P Rev A00
Summary of Contents for RXT3900
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