NonStop S-Series Planning and Configuration Guide (G06.29+)

System Components
HP NonStop S-Series Planning and Configuration Guide—523303-021
4-12
Fans
Processor Numbers and Group Numbers
The processor numbers associated with the group numbers in a system are:
Fans
Fans are located in slots 25 and 26 on the appearance side of a system enclosure, and
they provide cooling for components inside the enclosure. (See Components,
Processor Enclosure Without Power Shelf, Appearance Side on page 1-7.)
Each fan is connected to one power monitor and control unit (PMCU). Each fan is also
connected to the other fan in the enclosure through a fan interconnect cable. The fans
are speed-control fans. If one fan fails, the other fan operates at a faster speed to
compensate.
The relationships between fans and PMCUs in a system enclosure are:
Processor Group Slot Processor Group Slot
0 01 50 8 05 50
1 01 55 9 05 55
20250 1006 50
30255 1106 55
40350 1207 50
50355 1307 55
60450 1408 50
70455 1508 55
PMCU in slot… Controls the fan in slot…
21 25
22 26