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7
Relative frequency
and bit slips
(Option 010)
2.048 Mb/s only
Measures relative frequency of,
and bit slips between, two ITU-T
G.703 2 Mb/s signals. Results
displayed as
+
ve and
−
ve peak
wander (UI), cumulative bit slips,
frequency offset (ppm) and graph
of bit slips (256, 16 UI).
Reference input level:
0 to
−
20 dBm.
Connector:
BNC 75 ohm,
unbalanced.
ITU-T M.2110 and M.2120
analysis
(Option 210)
Measurement start at user-
specified time. Summary print of
current settings and counts.
ITU-T M.2110 analysis
(for bringing paths into service)
:
1-day and 7-day tests.
Wait/pass/fail test relative to user-
defined percentage path
allocation.
ITU-T M.2120 analysis
(for in-service monitoring)
:
15-minute and 24 hour-contiguous
measurement of errored and
severely errored seconds based
on user-defined path allocation.