Kontron CG2300 Installation And Maintenance Manual page 77

Connecting the Power Cord
When using a rack, wait to install the power cord(s) until after the server is in the rack.
NOTE:
Equipment Rack Precautions
CAUTION: ANCHOR THE EQUIPMENT RACK — The equipment rack must be anchored to an unmovable support to prevent it from
falling over when one or more servers are extended in front of it on slide assemblies. The equipment rack must be installed
according to the manufacturer's instructions. You must also consider the weight of any other device installed in the rack.
Mains power disconnect — The power cord(s) is considered the mains disconnect for the server and must be readily accessible
when installed. If the individual server power cord(s) will not be readily accessible for disconnection then you are responsible for
installing a power disconnect for the entire rack unit. This main disconnect must be readily accessible, and it must be labeled as
controlling power to the entire rack, not just to the server(s). To remove all power, two power cords must be removed.
Grounding the rack installation — To avoid the potential for an electrical shock hazard, for AC power you must include a third wire
safety ground conductor with the rack installation. For DC power the two studs for chassis enclosure grounding must be used for
proper safety grounding. See Figure 53in Section 5.3.2, "Adding or Replacing a Power Supply Unit" for the location of the ground
studs. With AC power, if the server power cord is plugged into an outlet that is part of the rack, then you must provide proper
grounding for the rack itself. If the server power cord is plugged into a wall outlet, the safety ground conductor in the power cord
provides proper grounding only for the server. You must provide additional, proper grounding for the rack and other devices
installed in it.
AC overcurrent protection — When AC power is used, the server is designed for a line voltage source with up to 20 amperes of
overcurrent protection per cord feed. If the power system for the equipment rack is installed on a branch circuit with more than 20
amperes of protection, you must provide supplemental protection for the server. The overall current rating of a server configured
with two power supplies is less than 6 amperes.
CAUTION: Temperature — The operating temperature of the server, when installed in an equipment rack, must not go below 5°C
(41°F) or rise above 40°C (104°F) ). Extreme fluctuations in temperature can cause a variety of problems in the server.
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Installation and Maintenance Guide
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