5-8 5100 ES Model II/III Portable Radio Operating Manual
December 2006
Conventional Mode Features
For an Emergency Alarm:
• The DTMF Emergency ID is sent.
• The MDC ID is sent with the emergency bit set.
• The Five Tone ID is sent with the fifth tone being status type emergency.
• No special action is done with the single tone.
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 Emergency option switch or select that menu parameter. The radio then
automatically transmits the emergency alarm.
2
Either Normal or Silent operation can be programmed. With Normal operation, the red
LED lights, the emergency tone sounds, and “EMERGENCY” flashes in the display.
“EMERGENCY” continues to flash until the alarm ends. If “Silent” is programmed,
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.
3
When the emergency alarm is acknowledged by the dispatcher, “Ack Rcvd” is briefly
displayed and the emergency acknowledge tone (two beeps) sounds. This alert tone can
be disabled if desired, and does not occur if Silent operation is programmed.
Retries will only occur for P25 Conventional and MDC as these are the two types of
signaling where are radios have the ability to decode a systems response.
4
The emergency alarm mode is exited when radio power is cycled or by pressing and
holding* the Emergency option switch.
5.9.2 Emergency Calls
The Emergency Call feature allows a user to place an emergency voice call by pressing the
PTT switch after pressing the Emergency option button or selecting the Emergency menu
parameter. If the Emergency Hot Mic feature is enabled, the emergency call is
automatically transmitted without having to press the PTT switch (see following
description). The system to which the emergency channel is linked must have Emergency
Calls enabled. Analog and Digital (P25) calls can be individually enabled.
If the emergency call is sent on a P25 channel, an emergency indication is sent according
to the P25 standard (the emergency bit is set in the Common Air Interface). If it is sent on
an analog channel, the DTMF Emergency ID is sent in place of the ANI DTMF PTT ID if
applicable.
Note
The DTMF Emergency ID is sent only if pre- or post- DTMF ANI is enabled on the
channel by programming.
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