Chapter 4. Status
61200659L1-1
MX2800 STS-1 User Manual
4-9
•
H
OLDOVER
– indicates that a failure in the selected clock sourc
has occurred and the unit has entered hold-over mode. In this
mode, the last known good clock reference frequency will be
held within 4.1 ppm for a minimum of 24 hours.
PRI Ext. Clock
The PRI EXT Clock alarms indicate when a failure condition is
encountered on the PRImary clock source (if configured). The
possible values for this alarm are:
•
D
ISABLED
–
indicates that the selected clock has been disabled
by the user and will not be used.
•
N
ORMAL
–
indicates that the clock source is currently being
used a the timing reference.
•
A
VAILABLE
–
indicates that the clock source is available to be
used as a timing source if a failure of the current source occurs.
•
LOS/AIS
–
indicates that the clock source is not valid due to an
LOS or AIS condition.
•
F
AIL
–
indicates that an internal hardware failure on the unit
prevents the clock source from being used.
•
U
NAVAILABLE
– indicates that the user has specified a T1/E1
port to be used as an external clock source, but the port has not
been enabled.
SEC Ext. Clock
The SEC EXT Clock alarms indicate when a failure condition is
encountered on the SECondary clock source (if configured). The
possible values for this alarm are:
•
D
ISABLED
–
indicates that the selected clock has been disabled
by the user and will not be used.
•
N
ORMAL
–
indicates that the clock source is currently being
used a the timing reference.
•
A
VAILABLE
–
indicates that the clock source is available to be
used as a timing source if a failure of the current source occurs.
Summary of Contents for 1200287L1
Page 10: ...x MX2800 STS 1 User Manual 61200659L1 1...
Page 18: ...Table of Contents xviii MX2800 STS 1 User Manual 61200659L1 1...
Page 22: ...List of Tables xxii MX2800 STS 1 User Manual 61200659L1 1...
Page 90: ...Chapter 3 Configuration 3 44 MX2800 STS 1 User Manual 61200659L1 1...
Page 134: ...Chapter 6 Diagnostics 6 12 MX2800 STS 1 User Manual 61200659L1 1...
Page 140: ...Chapter 7 Circuit and Network Redundancy 7 6 MX2800 STS 1 User Manual 61200659L1 1...
Page 146: ...Chapter 8 Power Loss Recovery 8 6 MX2800 STS 1 User Manual 61200659L1 1...
Page 160: ...Chapter 9 Transaction Language 1 TL1 9 14 MX2800 STS 1 User Manual 61200659L1 1...
Page 164: ...Appendix A Pinouts A 4 MX2800 STS 1 User Manual 61200659L1 1...
Page 168: ...Appendix B Specifications Summary B 4 MX2800 STS 1 User Manual 61200659L1 1...
Page 174: ...Appendix C Acronyms Abbreviations C 6 MX2800 STS 1 User Manual 61200659L1 1...