Fujitsu PRIMERGY RX2520 M5 Upgrade And Maintenance Manual page 442

Appendix A
K - System fan
Status
off
orange on
L - Battery
Status
orange on
M - Standby Power
Status
orange on
N - Main Power
Status
green on
O - MBC
Status
green on
P - MBC
Status
orange on
442
Description
System fan running
System fan failure
Description
Battery failure
Description
All standby voltages ok
Description
All main voltages ok
Description
PSU power ok
Description
MBC error
Upgrade and Maintenance Manual RX2520 M5