User`s guide

34 007-3938-003
2: Using the L1 and L2 Controllers
L2 Controller Tasks
The L2 controller performs the following functions:
• Controls resource sharing.
• Controls L1 controllers.
• Resets the system.
• Issues non-maskable interrupts (NMIs).
• Displays voltage margin information.
• Routes data between upstream devices and downstream devices.
Temperature messages: high alt.
ATTN: TEMP # advisory temperature reached
@ xxC xxF
The ambient temperature at the brick’s, server’s,
or module’s air inlet has exceeded 27 ˚C.
ATTN: TEMP # critical temperature reached @
xxC xxF
The ambient temperature at the brick’s, server’s,
or module’s air inlet has exceeded 31 ˚C.
ATTN: TEMP # fault temperature reached @
xxC xxF
The ambient temperature at the brick’s, server’s,
or module’s air inlet has exceeded 35 ˚C.
Temperature stable message:
ATTN: TEMP # stabilized @ xxC/xxF The ambient temperature at the brick’s, server’s,
or module’s air inlet has returned to an
acceptable level.
Power off messages:
Auto power down in xx seconds The L1 controller has registered a fault and is
shutting down. The message displays every 5
seconds until shutdown.
Brick or server appears to have been powered
down
The L1 controller has registered a fault and has
shut down.
Table 2-1 L1 Controller Messages (continued)
L1 System Controller Message Message Meaning and Action Needed