Dual XPR522 Informações Técnicas descarregar pdf (Página 17)

Revised May 15, 2006

Other important considerations:

AC Power

Valcom MultiPath Intercoms require a dedicated 15-amp circuit and a

solid earth ground. If not already existing, be sure to account for this in

your bid price. Adequate AC Power may also be required in IDFs for

power supplies.

Environment

All electronic equipment should be installed in a climate controlled

(temperature and humidity) environment. The ideal environment for

Valcom MultiPath equipment will be +32 to +104 degrees F with a non-

condensing humidity range of 0 to 85%.

Existing Call Switches

Existing call switches should work on Valcom MultiPath if they are

comprised of a simple normally open switch. Existing call switches (such

as the Bogen CA19), which utilize any type of circuitry, will not work with

Valcom MultiPath.

New Call Switches

If your 45-ohm application will utilize V-2970 or V-2971 call switches, each

talkback area’s feeder cable will need to route through the call switch

before connecting to the speaker. These call switches feature integrated

volume controls for the classroom speaker. When using these call

switches, plan to install talkback speakers using the highest volume

level connection to allow maximum volume control range. The

integrated volume control in the V-2970 and V-2971 call buttons is designed for

use with 45-ohm talkback speakers and must not be used with 25-volt speakers.

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Dual XPR522 Informações Técnicas Página 17