Technical data

5-2

Site Preparation and Installation

Weight Distribution

To avoid hazards arising from uneven mechanical loading of the

rack, plan the installation so that (within the limitations of

equipment and cabling) the weight of the equipment is evenly

distributed across the width of the rack. The heaviest units should

be located towards the bottom.

Power Requirements

The computer system should be connected to branch circuits

specifically and totally dedicated for the computer system. Do not

plug other electrical items (that are not part of the entire computer

system) into an outlet that is connected to the circuit breaker

serving the computer. Making the computer share a circuit with

other electrical equipment is an invitation to losing data if the

circuit is overloaded and the breaker is tripped. The computer is

equipped with a separate power cord and should be placed within

six feet of the electric receptacle.

For protection of data in the computer, disable all other outlets not

used by the computer that are on the same branch circuit. It is

suggested that adhesive labels be placed over outlets in order to

prevent their use.

Guidelines for Using Branch Circuits

All branch circuits for the computer system must come from the

same circuit breaker panel. Failure to do this can cause power to

flow in the data cables interconnecting various devices of the

system.

Branch circuits must not be overloaded. Check the manual and/or

rating plate of all devices and verify that the sum of the ampere

ratings do not exceed two-thirds of the branch rating.