19 Operation on an ISDN Access
ARGUS 152
221
Display of other characteristic values (in
accordance with ITU-T G.821):
All values are given as relative values (in
percentages) as well as in absolute
figures.
The ARGUS evaluates the measurement
results to determine whether they satisfy
the threshold limits defined in the CCITT
G.821; with consideration of the defined
hypothetical reference connection HRX
(displaying OK or NO (Not OK)).
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-
The evaluation of the results depends on
the error threshold (in this example OK),
see page 218.
-
Trans. data (transferred data):
(K = 1024 bits, k = 1000 bits)
-
Sync. time in h:min:s
(Time within which the ARGUS can sync
to the bit pattern)
-
No. LOS (counter)
Synchronization is lost at an error rate
greater than or equal to 20 % within a
period of a second.
-
LOS time: Duration of the BERT minus
the sync. time (the time in which the
ARGUS could not sync to the bit pattern
after it had been in sync at least once)
-
abs. err: The number of bit errors
-
Rel. err: The bit error rate
(e.g. 9.7E-07 = 9.7 · 10
-7
= 0.00000097)
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Return to the previous display
BERT results: