Nokia DNT2Mi sp/mp Operating Instructions Manual page 56

Information
Total time
Unavailability time
Errored seconds
Severely errored seconds
Background block errors
Unavailability time ratio
Errored seconds ratio
Severely errored seconds
ratio
Background block error
ratio
56 (128)
Data Network Terminal Single-port and Multiport Operating Instructions
• Line attenuation
• Line voltage (remote-powered)
Attenuation can be 0 to 41 dB.
DNT statistics via the front panel or Q1
Signal qualities of the selected 15-minute periods (4 periods with front panel
menus and 100 with Q1) and 24-hour periods (4 periods with front panel menus
and 30 with Q1) and since the last reset, according to Rec. G.826, are indicated
by the quality parameters in Table 15.
Table 15. Statistics values via Q1
Abbreviation and/or
ratio
TT
UAT
(Rx, Tx)
ES
(Rx, Tx)
SES
(Rx, Tx)
BBE
(Rx)
UATR
(Rx, Tx)
ESR
(Rx, Tx)
SESR
(Rx, Tx)
BBER
(Rx)
System counters via Q1
• Number of CPU resets and the time passed since the last reset.
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Description
Time passed since the last reset.
Time during which severely errored seconds have
occurred.
Number of errored seconds.
Number of seconds during which ≥ 30% blocks
are errored.
Number of errored blocks except blocks during
severely errored seconds and unavailable time.
The block size depends on the used line rate.
Ratio of unavailability time to the total time during
the last 15 minutes or 24 hours.
Ratio of errored seconds to the total of seconds in
the available time during the last 15 minutes or 24
hours.
Ratio of severely errored seconds to the total of
seconds in the available time during the last 15
minutes or 24 hours.
Ratio of background block errors to the total of
blocks during the last 15 minutes or 24 hours,
except blocks during severely errored blocks and
unavailable time.
DN01145897
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