System Fans Led - Cisco NCS 540 Hardware Installation Manual

System Fans LED

LED
SYNC
GNSS
System Fans LED
Cisco N540-24Q8L2DD-SYS has six fans at the back panel.
Table 9: Fan Assembly LED Descriptions
LED
STATUS
Cisco Network Convergence System 540 Large Density Routers Hardware Installation Guide
66
Color
Green
Flashing Green
Amber
Off
Off
Green
Red
Amber
Flashing Green
Color Status
Green Fans are operating normally.
Amber Single fan failure.
Red More than one fan failure or a single PSU fan failure.
Off Fan tray is not receiving power.
Status
Time core is synchronized to an external source including
IEEE1588.
System is in Synchronous Ethernet mode.
Acquiring state or Holdover: Time core is in acquiring
state or holdover mode.
Time core clock synchronization is disabled or in
free-running state.
GNSS is not configured.
GNSS Normal State. Self-survey is complete.
Power up. GNSS is not tracking any satellite.
Auto holdover.
Learning state–normal. Self-survey is not completed.
Appendix