Avaya Bogen Universal Paging Access Module Instrução De Instalação

Página de 30
[24]
Typical Installation: Connecting the UPAM to an Amplifier’s
MIC Input
Due to the higher sensitivity of Hi-Z microphone inputs, they should be used only
as a last resort. Both Hi-Z and Lo-Z inputs can be accomodated. The Lo-Z
microphone connection is the more desirable of the two because it is less
susceptible to noise pickup. The UPAM connects to the MIC input using the
LUWMT1A transformer (see Figure 8). This transformer includes a microphone
input modification to provide the proper attenuation. 
1.
Make sure the amplifier is turned off or unplugged. Modify the LUWMT1A
transformer by moving the push-on lug to the center terminal on the terminal strip
(see inset diagram in Figure 9 for proper jumper placement).
2.
Connect PT terminal of the UPAM to one of the outside screw terminals on the
LUWMT1A transformer.
3.
Connect PR terminal of UPAM to the other outside screw terminal on the
LUWMT1A.
4.
Connect a suitable adapter to the RCA-type plug on the LUWMT1A (if required).
5.
Connect any background music source to BGM IN jack (RCA-type) on the UPAM.
6.
Connect speaker loads to the amplifier's output terminals, if necessary.
7.
Set amplifier volume control counterclockwise to minimum.
8.
Turn amplifier on.
9.