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

System Components
HP NonStop S-Series Planning and Configuration Guide—523303-021
4-55
I/O Multifunction (IOMF) CRUs
Power Cords, Power Cables, and Receptacles
•
1952 IOMF CRUs:
°
AC power cord
The AC power cord supplies AC power to power supplies in the IOMF CRU.
Removing the AC power cord from an IOMF CRU results in loss of power to
the IOMF CRU and its associated PMCU and loss of the capability to charge
the associated battery. However, the other components in the enclosure are
powered by the other power supply and the batteries.
The IOMF CRU cannot be removed from its enclosure while the AC power
cord is connected to it.
°
AC power cord receptacle
This receptacle is for the AC power cord. The AC power cord is held in place
by a mechanical clamp (the power interlock).
•
1980 IOMF 2 CRUs
°
DC power cable
The DC power cable supplies DC power to the IOMF 2 CRU from the power
supply in the power shelf.
The IOMF 2 CRU cannot be removed from its enclosure while the DC power
cable is connected to it.
°
DC power cable receptacle
This receptacle is for the DC power cable.
Power-On Push Buttons, Cables, and Receptacles
The power-on push button, cable, and cable receptacle in an IOMF CRU are identical
to those in a PMF CRU; see Power-On Push Button, Cable, and Receptacle on
page 4-37.
LEDs
The 1952 IOMF CRU contains:
•
An amber fault LED, that when lit, indicates that the IOMF CRU is in an error
condition.
•
A green power-on LED, that when lit, indicates that the IOMF CRU is operational.
•
A yellow ServerNet port service LED that is currently unused.