Exfo FTB-800 Series for FTB-1 Uživatelský manuál Strana 239

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Test Setup - Test Configurator, Timer, and System
NetBlazer 229
SyncE
SyncE
From the Test menu, tap Setup, Test Configurator, and the SyncE test
block.
ESMC Monitoring
ESMC (Ethernet Synchronization Message Channel) is a live value
monitored even when the test is not started.
An arrow next to the ESMC label indicates that ESMC valid information
frames are received or not.
A green arrow indicates that at least one ESMC valid information
frame, containing a valid FCS, was received within a second in the
last 5-second interval.
A red arrow indicates that no ESMC valid information frames were
received for more than 5 seconds.
A gray arrow indicates a pending state.
Received QL indicates the last Quality Level received. The
Received QL is a live value monitored even when the test is not
started.
QL Mismatch Monitoring check box when selected (default) enables
the Quality Level mismatch monitoring. The quality level characterizes
the clock quality in terms of network synchronization.
Expected QL available when the QL Mismatch Monitoring check box
is selected, allows the selection of the Expected Quality Level value.
See page 321 for more information.
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