Quantcast Figure 5-31.--The TS-3687/WTC-2(V) telephone test set, unit 7.
 

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Page Title: Figure 5-31.--The TS-3687/WTC-2(V) telephone test set, unit 7.
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The extension visual signal device (fig. 5-30)
provides a visual signal to a location remote from a
terminal station when additional signaling is required
due to high noise levels or physical barriers to sound
near a station. The extension visual signal device uses a
50-watt incandescent lamp.
Unit 7
Unit 7 (fig. 5-31) is used to test the terminal stations,
it has the capability of testing the continuity of the
station selector switches and associated wiring of the
terminal stations. The test set is a portable bench top unit
that mainly consists of an ON/OFF toggle switch, a
transformer, and 24 light emitting diodes to test the
continuity of the two station selector switches on the
terminal stations.
Unit 8
Figure 5-31.--The TS-3687/WTC-2(V) telephone test set,
unit 7.
Unit 8 (fig. 5-32) provides an audible signal to a
location remote from a terminal station when additional
SYSTEM OPERATION
audible signaling is required due to high noise levels or
physical barriers to sound near a terminal station. The
The system can be used to make point-to-point
audible alarm consists of an electrical horn mounted
(station-to-station) calls and conference calls. The
within the component. The audible alarm is also
system also provides net access, call holding, and
supplied as one of the components for unit 3.
executive override functions.
Point-to-Point Calls
Point-to-point calls can be made from any terminal
station to any other terminal station. To initiate a
point-to-point call, you should perform the following
procedures:
Figure 5-30.--Extension visual signal device.
Figure 5-32.--The BZ-240/WTC-2 (V) audible alarm, unit 8.

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