Dantel A18-05775-00 Manual de instalação e operação - Página 3

Procurar online ou descarregar pdf Manual de instalação e operação para Controlador Dantel A18-05775-00. Dantel A18-05775-00 10 páginas. Order wire control and speaker monitor panel

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CIRCUIT DESCRIPTION

ig. 1 shows the 05775 Order Wire and Speaker Monitor Panel

functional schematic.

The 05775 Panel monitoring section monitors all associated order

wire channels over the speaker. Incoming calls couple to the

speaker through transformers, operational amplifiers, and a

volume control potentiometer.

The push-button speaker monitor channel selector monitors any

one or two channels through an additional volume control potenti-

ometer. This option allows the selected channel(s) to be monitored

at a louder level. The unselected channels are still available for

monitoring at a quieter level.

A fuse and fuse alarm indicator LED are located on the front

panel. When the fuse blows, the alarm indicator LED lights up.

The control section is used to originate a call or answer an incom-

ing call on an individual order wire channel. Pressing the channel

button connects the handset to the respective order wire channel.

A headset may be used instead of the handset.

05775-0798 <90-00123>

AGE