Dell 4200 Personal Computer User Manual


 
Stand-Alone and Rack Configurations B-1
Appendix B
Stand-Alone and Rack Configurations
T
he Dell PowerEdge Cluster can be set up in a floor-
standing (stand-alone) configuration or can be mounted
in a Dell Rack-Mountable Solutions enclosure. Certain
rules and parameters must be followed in either case to
ensure that the PowerEdge Cluster is properly configured
and meets safety specifications. Dell supports only
PowerEdge Cluster systems that are configured accord-
ing to the instructions in this appendix.
NOTES: Dell certifies only PowerEdge Cluster systems
that are configured with the Dell products described
in this Installation and Troubleshooting Guide (see
Chapter 1 for a description of the PowerEdge Cluster
components).
Dell also supports only the certification of Dell Power-
Edge Cluster systems that are configured according to
the instructions provided in this guide. Configurations
using non-Dell products, such as server systems, rack
cabinets, and storage systems, have not been approved by
any safety agencies. It is the responsibility of the cus-
tomer to have such systems evaluated for suitability by a
certified safety agency.
P
ower Requirements of the
PowerEdge Cluster
Refer to Chapter 2, “Cabling the Cluster Hardware,” for
important information about handling the power require-
ments of the PowerEdge Cluster.
WARNING: Do not attempt to cable the Power-
Edge Cluster to electrical power without first
planning the distribution of the cluster’s electrical
load across available circuits. For operation in the
Americas, the PowerEdge Cluster requires two AC
circuits with a minimum capacity of 20 amperes
(amps) each to handle the electrical load of the sys-
tem. Do not allow the electrical load of the system
to exceed 16 amps on either circuit. For operation
in Europe, the PowerEdge Cluster requires two cir-
cuits rated in excess of the combined load of the
attached systems. Please refer to the ratings
marked on the back of each cluster component
when determining the total system’s electrical load.
WARNING: Although each component of the Pow-
erEdge Cluster meets leakage current safety
requirements, the total leakage current may exceed
the maximum that is permitted when the compo-
nents are used together. To meet safety
requirements in the Americas, you must use a Type
B plug and socket connection for the cluster power
to enable the appropriate level of ground protec-
tion. In Europe, you must use one (or two) power
distribution units (PDUs) or two Type B plug and
socket connections wired and installed by a quali-
fied electrician in accordance with the local wiring
regulations.