ATI Technologies ADA208PH 운영 및 유지보수 매뉴얼 - 페이지 4

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INSTALLATION

The ADA Series Distribution Amplifier is designed for rack mounting on standard E.I.A. 1-3/4

inch centers. Each unit dissipates approximately 10 watts and is ventilated through slots in the

rear panel.

WIRING

There are three wire grounded plugs. The power line ground could cause a loop with your

studio ground. If you are sure your studio ground will provide adequate protection to personnel

in case of an AC line short to chassis, a 3-to-2 AC adapter can be used to isolate the power line

ground. We recommend that the adapter be removed and the power line ground be reconnected

prior to any service work requiring removal of the studio ground from the chassis.

To allow maximum flexibility in grounding in high RF environments, the ADA circuit grounds are

isolated from case ground. For normal operation, add a ground jumper from any Phoenix

connector ground terminal to the chassis ground screw.

The four inch silver bearing low inductance copper strap which you are, of course, using for your

studio ground is not going to fit around the #6 chassis ground screw on the amplifier rear panel.

Run the strap to within a few inches of the chassis and jump to the chassis ground screw with

shield braid.

We have taken serious measures to keep RF out of your ADA. This includes split and

bypassed input and output resistor networks, beaded, bypassed and isolated power inputs,

non-concentric wound power transformers and double ground plane PC boards. However, in a

difficult broadcast application, any RF shielding and suppression system is going to be no better

than the ground system into which it is trying to dump the unwanted RF. For optimal product

performance, be sure to have a good facility grounding system.

Audio inputs and outputs should be connected using the rear panel labels as a guide. HI

outputs are all in phase with each other and in phase with the HI inputs.

www.atiaudio.com

7209 Browing Road

DaySequerra

Pennsauken, NJ 08109