Application Examples
The GWACC is a voice evacuation control panel which can be used, with a variety of FACPs, to provide emergency audio messages. Two typical
application examples follow.
One Speaker Circuit
Single output zone, single input circuit
(see Figure 1).
A very basic application consists of one GWACC with one amplifier and a single
speaker circuit. This configuration is suitable for small facilities requiring no more than 25 watts of output power. A single fire evacuation message
will be generated during an alarm condition from the host FACP, or can be manually generated with a message push-button.
In this application example, the NAC from the host FACP is connected to CMD1. The CMD1 “out” terminals are then terminated with an end-of-line
resistor for the FACP’s Style Y NAC, or the terminals are wired back to the host FACP for a Style Z NAC. S3 DIP switches “1”, “2”, and “3” are set
to OFF; this selection sends a 60-second message to the speaker circuit when the CMD1 input is activated. The S5 DIP switch “5” is set to OFF;
this selection activates the CMD1 input by a reverse-polarity condition. CMD3, CMD4, and CMD5 inputs require end-of-line resistors.
In this application example, the system may also be
manually activated
from the keypad. Press the Building Speakers push-button, then press
the Fire Message push-button. Alternately, use the microphone to make an announcement.
Keypad Example
52381k12.wmf
FIGURE 1:
One 25 Watt Speaker Circuit
NOTES:
1)
*EOLR required only for Style Y
(Class B). 4.75K ohm, 1 watt, P/N
75470.
2)
Typical illustration of an addressable
Gamewell control panel and addressable
control modules. Refer to manual for
voltage ranges, message control switch
settings, and command input specifica-
tions.
GWACC
CS-2504
09/01/06
g2504ap1.wmf
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