Dantel 41096, Руководство по установке и эксплуатации

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P
AGE
4 41096-0597 <90-00042>
CIRCUIT DESCRIPTION
F
ig. 1 shows the 41096 Order Wire and Speaker Monitor
Panel functional schematic.
The 41096 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
potentiometer. 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
incoming call on an individual order wire channel. A flashing
LED above the channel button indicates an incoming call. (The
order wire terminal also provides an audible indication.) Press-
ing the channel button connects the handset to the respective
order wire channel. A headset may be used instead of the
handset.