Chapter 4: Supplementary applications
EST3X Technical Reference Manual 89
Using the 3X-PMI paging microphone
The basic tasks in responding to an emergency event are:
1. Use the All Call function to announce the arrival of the fire department,
making any necessary announcements.
2. Use the Page To Evac function to reinforce the evacuation of the occupants
in areas receiving the evacuation signal.
3. Use the Page To Alert function to notify the areas not in immediate danger to
prepare to evacuate, or that evacuating people may enter their safe area.
4. Use the All Call Minus button to make announcements to areas of the facility
not receiving the EVAC or Alert signals, as required. Stairwells are typical
areas to use the All Call Minus page function.
Note: If the site is equipped with a remote paging microphone, it may be used to
issue pages throughout the facility. A remote microphone page is automatically
overridden by any pages issued by the local microphone in the 3X-PMI.
To make an announcement using the local paging microphone:
1. Select the areas to receive the page by pressing the appropriate page
function button(s). The button’s integral LED will be on steady when the
system is ready to receive the page.
2. Press the PTT button on the microphone. The Ready to Page LED will flash
while the preannouncement tone is sounding.
3. Begin the announcement once the Ready to Page LED is on steady. Adjust
your voice level so that the Paging Volume LED only flickers occasionally.
4. When you are finished making your announcement, release the PTT button,
and then press the page function button again to cancel the page and return
the system to its original condition.
Note: The system automatically cancels the page and returns to it original
condition after a short delay, if you do not cancel the page manually.
Remote annunciation
R-Series remote annunciators communicate with the EST3X control panel over
the RS-485 riser. They provide common control switches, system status
indicators, zone event messages, and zone status indicators at remote locations
throughout the protected premises. The EST3X life safety system compatible
R-Series remote annunciator models are shown in Figure 17 on page 90 and
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