User's Manual

Type of Equipment to be Protected

If the computer is equipped with a modem, the modem should also be surge protected. Protecting the

ower line without protecting the modem line provides only partial protection.

Quality of Electrical Wiring and Service

Wiring should be up to current NEC standards and have verified good AC grounds. It is important that

your computer system be plugged into a grounded AC outlet when charging and that all peripherals

connected to your system reference the same AC ground.

Selecting the Right Equipment

There are a number of companies that sell quality surge suppressors such as Sutton Designs, APC, and

Panamax. When you are looking for a surge suppressor, consider these things.

Expect to pay at least $50 for a good quality surge suppressor.

The surge suppressor should be a UL 1449, 497, and 1283 listed for surge suppression, modem

surge protection, and RFI/EMI noise filtering respectively.

The surge suppressor should have diagnostic LEDs that verify good AC ground, proper wiring,

and proper surge operation. On/off switches that light are not recommended since they can

produce electrical noise.

The Joule ratings should be a minimum of 480 Joules for the AC surge circuit.

The Joule ratings should be a minimum of 240 Joules for the modem.

The modem surge circuit should present low capacitance to the modem line or it will slow the

transmission rate. Capacitance should be specified at less than 50 picofarads.

Quality surge suppressor manufacturers generally offer a lifetime warranty.

Consider obtaining a protected equipment coverage policy which insures the equipment in the

event of surge damage.

The devices that will be attached to the computer also need to be surge protected.

72_0119_001

28 June 2004

e 53 of 80GoBook III Hel

7/5/2004file://C:\Documents%20and%20Settin

s\harwoodm.ITRXNT1\Local%20Settin

s\Tem

\~h...