User guide

Maintenance 4-9
4
Carrier Registers, Total over 24 Hours
The Menu-3 Performance Reports, Carrier Registers, Total Over 24 Hours
menu selection is the same as the previous menu except the time period is
24 hours. See Table 4-6 for parameter descriptions.
Figure 4-5 Menu-3 Perf. Reports, Carrier Reg., over 24 hours
Table 4-5 Carrier Registers, Current Interval Parameters
Parameter Description
Unavailable Signal State Yes, when Unavailable Seconds counter is activated. No, otherwise.
Current Interval Timer Counts number of seconds in current interval.
Errored Seconds (ES) A second with one or more frame errors or CRC-4 errors.
Unavailable Seconds (UAS) The number of seconds elapsed after 10 consecutive SES events are
received.
Severely Errored Seconds (SES) A second during which 300 or more CRC-4 violations or OOF events
have occurred.
Background Block Error (BBE) An errored block not occurring as part of an SES.