Service manual

1-78 AlphaServer GS80/160/320 Service Manual
1.20 H-switch Power Manager Module
The h-switch power module (HPM) is a microprocessor controlled sub-
system responsible for H-switch power management, environmental
monitoring, asynchronous reset and initialize, I
2
C bus management,
and CSB communication.
Figure 1– 35 H-switch Power Manager Module
H-Switch Power
Manager Module
PK1266