Tyco Electronics MM102014V1 - Manual (Page 42)

MM102014V1, Rev. G
¾ For an emergency call declaration, “EMERGENCY” indicates in the bottom line of the display.
In addition, the emergency talk group’s name appears in the top line of the display, followed by
an asterisk (*). The emergency talk group can be forwarded across the OpenSky network for
emergency communications.
¾ For an emergency alert declaration, “EMERG ALERT” indicates in the bottom line of the
display.
¾ For an emergency call declaration, other radio users and/or dispatchers at consoles will hear the
emergency signal, a distinctive 3-tone burst. They will also hear audio from the declaring radio’s
“hot” microphone, if any.
¾ For an emergency alert declaration, only dispatchers at consoles will hear the emergency signal.
¾ For an emergency call the declaring radio’s microphone remains “hot” for a predetermined
amount of time. In other words, the radio transmits audio for a period of time even when the
microphone’s PTT button is not pressed. Audio is transmitted over the emergency talk group.
When the microphone is “hot” for this initial period (typically ten seconds), simply speak into it
for voice transmission.
If an emergency declaration is not successful, the radio will periodically re-try until it is successful.
During this re-try period, the radio will flash “EMERG PEND” on the bottom line of the display. It will
display “EMERG RETRY” for each attempt.
5.17.2 Silent Emergency
When this feature is enabled and an emergency call or alert is declared by pressing the emergency button,
the radio will not play a tone and will display an abbreviated emergency message (default is EBA). This
feature is enabled or disabled via programming or via the menu.
If the Silent Emergency feature is enabled or disabled via programming, the setting will
survive power cycle. Enable/Disable selection via the menu will NOT survive power
cycle and the enable/disable state will revert to the programmed setting at power up.
5.17.3 Clearing an Emergency Call or Alert
To clear an emergency, press and hold the Emergency button for at least three (3) seconds. However, this
can only be accomplished at the radio where the emergency was originally declared (the initiating radio),
by a dispatcher at a console, at a supervisory radio, or by the network administrator. When the emergency
is successfully cleared, the remove tone will sound at the initiating radio. Also, for an emergency call, the
asterisk (*) will clear from the display.
5.17.4 Receiving an Emergency Call
Upon receiving an emergency call declared by another radio:
• An emergency tone sounds in the radio’s speaker/headset (three short high-pitched beeps).
• “EMERGENCY” flashes in the display if the radio is not in stealth mode.
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