Chapter 2: Basic operating instructions
P/N 3102309-EN • REV 001 • ISS 18JUL19 29
To make a live voice announcement:
1. For a control unit programmed as a command center, request for control of the EST4 system may be
required.
• Using the operator touch screen:
On the Action bar tap Request Control, and then tap the Control Request list button. The information
screen will show the control status. When ready, proceed to step 2.
• Using a 4-24L series control-display module (see Figure 9 below):
If the top Control Status LED (item 4) is steady, proceed to step 2. If not, press Request Control (item 5);
its LED flashes while requesting control. When the top Control Status LED is steady, proceed to step 2.
Figure 9: 4-MIC voice announcements using control-display module switches and indicators
2. Remove the microphone from its hook, and then press the areas to receive the page.
All Call (item 6): Broadcasts to all areas whether or not they are sounding a signal.
All Call Minus (item 7): Broadcasts to areas not currently sounding the evacuation signal or the alert signal.
Page to Other (item 8): Broadcasts live voice messages to areas such as stairwells and elevators.
Page to Emerg (item 9): Broadcasts live voice messages to areas defined for mass notification
announcements.
EVAC (item 10): Broadcasts to areas currently sounding the evacuation signal.
Alert (item 11): Broadcasts to areas configured to areas currently sounding the alert signal.
3. Press and hold the microphone push-to-talk switch (PTT) (item 3). The Ready to Page LED (item 1) flashes
during a preannouncement tone. When the LED is on steady, begin the announcement. Adjust your voice
level so that the red LED on the Paging Volume meter (item 2) does not illuminate.
4. Release the PTT switch when the announcement is finished and return the microphone to its hook.
(1)
(2)
(3)
READY TO PAGE
PAGING VOLUME
All Call
All Call
Minus
Phone
Page
Page to
Other
Page to
Emerg
EVAC
Alert
Request
Control
Control
Status
Grant
Control
Deny
Control
MNEC
On
MNEC
Reset
MNEC
Silence
(6)
(4)
(8)
(7)
(5)
(9)
(10)
(11)
4-MIC 4-24L12S
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