Operation Manual

ARGUS
60
A
RGUS 125
After the ARGUS has setup the connection and
synchronied the send and receive directions, it will
display the bit pattern, the B-channel used (e.g. B1),
the synchronicity of the bit pattern (synchronous or
asynchronous), the sync time in h:min:sec (time in
which the ARGUS can sync to the bit pattern),
the LOS counter and the number of bit errors that have
occurred.
When a bit error is detected, this will be signaled by a brief alarm; in the event
that the synchronisation is lost, a constant alarm will sound (see page 132 Alarm
bell).
After the test time is over, the ARGUS will display the
cause and the location which initiated the disconnect.
If the test ran normally, the ARGUS will display “Active
clearing” on this line.
The test results display:
- The evaluation of the results depends on
the error level (OK)
- Transferred data (K= 1024
*
bits, k=1000*Bit),
-sync.time
- LOS counter
- abs.err: The number of bit errors
- rel. err: The bit error rate (e.g. 9.7E-07 = 9.7·10
-7
= 0.00000097)
Display of other characteristic values (in accordance
with ITU-T G.821)
All values are relative and given in percentages. The
ARGUS evaluates whether the test results satisfy the
limits specified in the CCITT G.821 with consideration
of the reference connection HRX (displaying OK or
NO).
< ERROR > The ARGUS will generate an artificial
bit error, which can be used to test
the reliability of the measurement (in
particular for end-to-end tests).
< TM > Call the Test Manager (see page 96)
< RESET > Restart the bit error test: The test
time and number of bit errors will be
reset.
Stop the BERT