Verilink WANsuite 5330 (34-00302.F) Product Manual - Manual (Page 34)

3-6 W A N s u i t e 5 3 3 0
Network – Timing is derived from the network recovered clock. (Most
applications use this selection.)
Values: Network, Internal
Default: Network
NOTICE: Internal timing is valid only in 56K mode.
Error Status and Alarm Thresholds Table
The unit can be programmed to generate an alarm condition based on a
specific level of performance degradation. The Network screen presents a
table that provides current error status, alarm condition, error count, and alarm
threshold information.
Acceptable alarm thresholds are set for periods of 1
−
5, 10, 20, or 30 seconds
(900 seconds) and sampled every second. The types of error conditions listed
in the following paragraphs can be preset to a value selected from the
available enumeration list of thresholds (displayed as a pull-down menu).
Setting a threshold field to “None” disables the alarm for that condition. To
effectively disable alarm reporting, set all fields to “None.”
The 15-minute time frame is a time window based on the accumulated counts
over the previous 15 one-minute intervals. In all cases, if the number of actual
network errored seconds in the previous 15 minutes reaches the preset
threshold for the specified error type, an alarm condition is declared.
The four columns of the status table are as follows:
The table provides error status and alarm threshold information for the
following error parameters:
LOS Sets the Loss of Signal threshold. A LOS is a 1-second period in which the
DDS received signal is interrupted. The default value is None.
OOF Sets the Out of Frame threshold. An OOF is a 1-second period in which a
frame sync loss occurred. The default value is None.
OOS Sets the Out of Service threshold. An OOS is a 1-second period during which
the Out of Service code is received. The default is None.
BPV Sets the Bipolar Violation Errored threshold. A BPV is a 1-second period in
which at least one bipolar violation occurred. The default is None.
• Status Displays the current status of the network port.
• Alarm Displays the alarm value of the network port. The unit
declares an alarm as soon as the count exceeds the established
threshold.
• Count Displays the number of events or occurrences of this
condition that have been detected.
•
Threshold This forced-choice field can be set to a desired threshold for a
specific error condition. Available threshold choices are
None, 1, 2, 3, 4, 5, 10, 20, and 30.