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EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual

Page 428

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Advanced Tabs

414

IQS-8100 Series Transport Blazer

Service Disruption Time (SDT)

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Service Disruption: Indicates the time (in seconds) during which
there is a disruption of service due to the absence of traffic or to the
detection of defects. The H and C LEDs indicate respectively the
current (C) and history (H) SDT measurement states.

The C (Current) LED is green when there is no SDT. The C LED is red if
there is an SDT, and last until the next No Defect Time has been met or
the test period is elapsed.

The H (History) LED indicates if any SDT occurred in the past (LED is
red) or not (LED is green).