Emergency Alarms; Emergency Calls - E.F. Johnson Company 5300 SERIES Operating Manual

1. Global (radio wide) emergency channel
2. Emergency group of the selected channel
3. Talk group of the selected channel
4. Announcement group of the selected channel
•
The emergency programming of the system to
which that emergency talk group is linked controls
the emergency operation.

6.10.2 EMERGENCY ALARMS

An emergency alarm is a special transmission that
alerts a dispatcher of an emergency situation. It is sent
automatically by simply pressing Emergency option
switch. The system to which the emergency channel is
linked must have Emergency Alarms enabled. If not,
Emergency Alarms are disabled. The alarm is sent on
the control channel using Motorola proprietary
signaling.
Proceed as follows to send an emergency alarm:
1. If required, select a channel of a system on which
Emergency Alarms are enabled and then press the
EMER option switch. The radio then automatically
transmits the emergency alarm.
2. Either Normal or Silent operation can be
programmed. With the Normal mode, the red LED
lights, the emergency tone sounds, and
"EMERGNCY" flashes in the display. This indica-
tion continues to flash until the alarm mode is ended
(see step 4). If silent programmed or the Surveil-
lance mode is selected (see Section 4.9), none of
these indications occur. If "No Receive Activity
During Emergency" is programmed, receive audio,
the front panel LED, and receive icons are disabled
in the receive mode (firmware Versions 1.28/2.6/
3.6/4.2 or later only).
3. When the emergency alarm is acknowledged, "ACK
RCVD" is briefly displayed and the emergency
acknowledge tone (two beeps) sounds. Silent opera-
tion may also be programmed in which case no tone
sounds and there is no indication that an acknowl-
edgment occurred.
4. The radio continues to transmit this message until an
acknowledgment is received or the programmed
* This feature requires firmware 1.24.1/2.2.1/3.2.1/4.2
or later.
SMARTNET/SMARTZONE/P25 TRUNKED FEATURES
number of attempts have been made. The emer-
gency alarm mode is exited when radio power is
cycled, the channel is changed, or by pressing and
holding* the Emergency option switch.

6.10.3 EMERGENCY CALLS

General
An emergency call urgently requests access to a
voice channel (an emergency tone usually does not
sound at the console). An emergency call is placed by
pressing the PTT switch after pressing the Emergency
option button. If the Emergency Hot Mic feature is
enabled, the emergency call is automatically trans-
mitted without having to press the PTT switch (see
following description). The system to which the emer-
gency channel is linked must have Emergency Calls
enabled.
Emergency Hot Mic
If Emergency Hot Mic has been enabled for
emergency calls, automatic transmitting occurs with
microphone audio unmuted without having to manu-
ally press the PTT switch. The automatic transmit
period is programmed for 10-120 seconds in 10-
second intervals. If this feature or emergency calls are
not enabled by programming, automatic transmitting
does not occur. This feature is initiated only on the
first press of the Emergency switch. Subsequent
presses do not trigger automatic transmissions. To
reset this function, the channel must be changed or
power cycled.
Placing an Emergency Call
1. If required, select a channel of a system on which
Emergency Calls are enabled and press the Emer-
gency option switch. The Emergency Alarm is then
sent as described in Section 5.10.2 if applicable.
1. The emergency mode is indicated when "ACK
RCVD" is briefly displayed and then
"EMERGNCY" and the emergency talk group are
alternately displayed.
2. If the preceding Emergency Hot Mic feature is
enabled, the call is automatically transmitted
without pressing the PTT switch. If it is disabled,
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