14-80
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 14 Alarm Troubleshooting
Alarm Procedures
14.4.114 SWTOPRI
•
Not Alarmed (NA) (Condition)
The synchronization switch to primary reference (SWTOPRI) condition occurs when the ONS 15327
switches to the primary timing source (reference 1). The ONS 15327 uses three ranked timing references.
The timing references are typically two BITS-level or line-level sources and an internal reference.
Note
This is a condition and not an alarm. It is for information only and does not require troubleshooting.
14.4.115 SWTOSEC
•
Not Alarmed (NA) (Condition)
The synchronization switch to secondary reference (SWTOSEC) condition occurs when the ONS 15327
has switched to the secondary timing source (reference 2). The ONS 15327 uses three ranked timing
references. The timing references are typically two BITS-level or line-level sources and an internal
reference.
Procedure: Clear the SWTOSEC Condition
Find and troubleshoot alarms related to failures of the primary source, such as the
alarm.
14.4.116 SWTOTHIRD
•
Not Alarmed (NA) (Condition)
The synchronization switch to third reference (SWTOTHIRD) condition occurs when the ONS 15327
has switched to the third timing source (reference 3). The ONS 15327 uses three ranked timing
references. The timing references are typically two BITS-level or line-level sources and an internal
reference.
Procedure: Clear the SWTOTHIRD Condition
Find and troubleshoot alarms related to failures of the primary and secondary reference source, such as
the
and
alarms.
14.4.117 SYNCPRI
•
Minor, Non-Service-Affecting
A loss of timing on primary reference (SYNCPRI) alarm occurs when the ONS 15327 loses the primary
timing source (reference 1). The ONS 15327 uses three ranking timing references. The timing references
are typically two BITS-level or line-level sources and an internal reference. If SYNCPRI occurs, the
ONS 15327 should switch to its secondary timing source (reference 2). This switch also triggers the
SWTOSEC alarm.
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...