Installation
Page 2-9
AM-6000 Computer Owner's Manual, Rev. 00
If problems occur when equipment near the computer is turned on—for example, if your computer stops
functioning when someone uses the photocopier—improper grounding could be your problem. We
recommend a low impedance power conditioner be used to filter out these power problems. Alpha
Microsystems can provide the approved power conditioner type. Ask your VAR for further details.
Several anti-static sprays on the market can be of considerable help during days when static electricity is
a problem. Also, using an air conditioner that controls humidity can greatly reduce a static electricity
problem.
POWER AND CABLE CONNECTIONS
Before selecting a site for your computer, you should determine if the area where you want to place the
computer has adequately regulated AC power. If you request it, many power companies will install test
equipment to determine if there is a need for additional line regulation. You can also test line voltages
using a high speed line transient recorder. If, over several days of testing, the line voltage varies more
than 10 percent from the rated line voltage, you may need to install a power conditioner and a new
dedicated AC power circuit. Alpha Micro computers require a properly grounded power outlet for the
system to run correctly.
A "transient free," or smooth and consistent, power source and a properly installed earth ground can
significantly improve the reliability of your computer. While the computer is in use, it is important to
maintain a constant line voltage free of power surges, fluctuations and impulses. Ideally, a separate
power circuit should be available for use only by the computer. However, if this is not possible, you may
need a line conditioner capable of suppressing transients or spikes to eliminate power surges and noise.
Be sure the power rating for the power lines the computer will be connected to is adequate for your
computer or any future systems you may be planning to install. In North America, a standard 15 Amp,
115 Volt grounded connector-type outlet is required for the CPU chassis. In some other countries, the
requirement is a 230 Volt AC power source.
The maximum power requirements for the computer are:
•
115 Volt AC at 5 Amps, or
•
230 Volt AC at 3 Amps
Additional outlets are required for each I/O chassis and/or peripheral connected to the computer. Alpha
Micro computers come with a standard six-foot power cord. If this is not long enough, be sure any
extension cords used are rated for the full 15 Amps—otherwise, the full voltage will not reach your
computer. This can affect the efficient operation of your computer.
A point to remember is that the closer you get to either end of the AC voltage power range, the less
efficient the computer will be.
