Appendix D
Electrical Storm
The UPS (uninterruptible power source) and surge protectors, which come
with your system, are adequate for mild fluctuations of power. They cannot,
however, prevent damage from electrical storms or direct lightning hits. If a
storm is threatening, you should take a few precautions to avoid extensive
damage.
1 Finish all transactions on every terminal and the system monitor as fast as
possible. BYE or log off every terminal.
2 Turn the power off to the computer, terminals, and printers.
3 Pull the plugs on the computer, terminals, and printers.
4 Wait until the storm passes. If desired, you can write sales tickets by hand
and enter them later when you bring the system up.
5 When it is safe to bring the system up, plug in everything you unplugged
earlier and turn the peripherals on. Turn on the computer (CPU) and
resume processing. Enter any hand-written sales tickets.
NOTES:
466
Dimensions 14
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