Symantec NetBackup 5220, Hardware Troubleshooting Manual

Page: 156 / 169

156 Appendix B: Regulatory and Certification Information
General rack mount installation guidelines
General rack mount installation guidelines
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 the rack on slides. You must also consider the weight of any other device
installed in the rack. A crush hazard exists should the rack tilt forward which could
cause serious injury.
Temperature: The temperature, in which the server operates 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 your server.
Ventilation: The equipment rack must provide sufficient airflow to the front of the
server to maintain proper cooling. The rack must also include ventilation sufficient
to exhaust a maximum of 1023 BTU's (British Thermal Units) per hour for the
server. The rack selected and the ventilation provided must be suitable to the
environment in which the server will be used.
If AC power supplies are installed:
Main AC power disconnection: The AC power cord(s) is considered the main
disconnect for the device and must be readily accessible when installed. If the
individual device power cord(s) will not be readily accessible for disconnection then
you are responsible for installing an AC 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).
Grounding the rack installation: To avoid the potential for an electrical shock
hazard, you must include a third wire safety ground conductor with the rack
installation. If the server power cord is plugged into an AC 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 AC 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.
Overcurrent protection: The server is designed for an AC 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.
Power Cord Usage Guidelines
WARNING