Logical view
Important:
Each release handle on the fan shuttle has a safety switch that disables
power output from the power boxes. If the release handles are not secured to the
chassis with the thumbscrews, the BladeCenter HT unit will not power-on.
Connecting the BladeCenter HT type 8740 to dc-power
The BladeCenter HT dc-power inputs are configured for dc isolated return (DC-I).
The dc return terminal or conductor is not connected to the equipment frame or the
grounding means of the equipment.
Attention:
Only trained service personnel, other than IBM service technicians, are
authorized to make the connections to and disconnections from the -48 volt dc
power source. IBM service technicians are not certified or authorized to install or
remove the -48 volt power cable. The customer is responsible for ensuring that only
trained service personnel install or remove the -48 volt power cable.
The BladeCenter HT unit has four dc-power terminal connectors. Each dc terminal
has four #M6 (0.25-inch) studs, one for -48 V dc, one for RETURN, and two for
Chapter 1. Introduction
7
Summary of Contents for BladeCenter HT 8740
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