Schneider Electric 840 USE 106 0 Stroller User Manual


 
Maintenance
188
840 USE 106 00 January 2003
Detecting Failures in a Hot Standby System
Main
Components of
the Primary
Backplane
If one of the main components of the Primary backplane fails, control shifts to the
Standby. If a component fails in the Standby backplane, the Standby goes offline.
Likewise, if the fiber cable link between the Hot Standby modules fails, the Standby
goes offline.
This section helps you determine which component failed. When you have replaced
that component, you must cycle power, with one exception. After cycling power, if
the backplane is now operating, it assumes the Standby role. If the failure was in the
fiber cable, the backplane may return to Standby mode without cycling power.
If replacing the component does not solve the problem, call Schneider Electric
customer support at 1-800-468-5342 for further directions.