Test Results
510 88000 Series
Quality Level (1588 PTP)
Quality Level (1588 PTP)
The quality level characterizes the clock quality in terms of network
synchronization.
From the Test menu, tap Results, and the Quality Level tab.
Last QL Received indicates the last Quality Level value received. The
pass/fail verdict is also displayed when both QL Mismatch Monitoring
and Pass/Fail Verdict check boxes are selected.
Last Change indicates the date and time of the Last QL has changed.
QL Mismatch Monitoring when selected (default) enables the Quality
Level mismatch monitoring.
Expected QL allows the selection of the Expected Quality Level value.
Available when the QL Mismatch Monitoring check box is selected.
Profile
ITU
Quality
Level value
PTP Clock
Class
Description
G.8275.1 QL-PRC/PRS 6, 7, 135, 140 Primary Reference Clock Traceable (G.811)
QL-SSU-A/ST2 150 Type I or V slave clock (G.812)
Traceable to Stratum 2 (G.812 Type II)
QL-SSU-B/ST3E
(default)
160 Type VI slave clock (G.812)
Traceable to Stratum 3E (G.812 Type III)
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