Specifications

MiTOP-E1/T1 Installation and Operation Manual Chapter 6 Diagnostics and Troubleshooting
MiTOP-E1/T1 Ver. 1.0 Handling Events 6-5
Parameter Description
Jitter Buffer Current Level Current jitter buffer level, see note below
Jitter Buffer Max Level Maximum jitter buffer level reached after the last counter reset, see note
below
Jitter Buffer Min Level Minimum jitter buffer level reached after the last counter reset, see note
below
Dpll Overflow, CDC Detected,
Delta-T self test faild,
Delta-T timeout, Sticky
overflow, Virtual JB
un/overrun, Reacquisition
Alarm, Adapt freeze
Indications of the adaptive clock functionality, used for debug purposes
• To calculate the jitter buffer level (current, minimum or maximum) in bytes,
use the following formula:
Jitter buffer level = currently displayed value × (32 × interface bit rate).
• Maximum delay variation at the network can be calculated by subtracting the
Jitter buffer Min level from the jitter buffer Max level.
6.2 Handling Events
MiTOP-E1/T1 maintains a log file, which can hold up to 100 events (system
messages). All events are time-stamped and have their severity indicated.
Displaying Events
³ To access the log file:
• From the System menu, select Log File.
The Log File is displayed.
MiTOP-E1/T1
Monitoring > System > Log File
Current Time 07:00:02
Code Description Severity Time
68 RED_ALARM_OFF 0 07.00.00
Clear Table
Figure 6-4. Log File
Note