E F Johnson Company 2425M70 Benutzerhandbuch
7-14
SMARTNET / SmartZone / P25 Trunked Features
7.9.3.1
Emergency Hot Mic
If Emergency Hot Mic has been enabled for emergency calls, automatic transmitting
occurs with microphone audio unmuted without having to manually press the PTT switch.
The automatic transmit period is programmed for 10-120 seconds in ten-second intervals.
If the “Increment by 1” option (P25 Trunked only) is enabled, the automatic transmit
period is programmed for 1-12 seconds in one-second intervals. If the Emergency Hot Mic
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, hold the
emergency button or cycle power.
occurs with microphone audio unmuted without having to manually press the PTT switch.
The automatic transmit period is programmed for 10-120 seconds in ten-second intervals.
If the “Increment by 1” option (P25 Trunked only) is enabled, the automatic transmit
period is programmed for 1-12 seconds in one-second intervals. If the Emergency Hot Mic
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, hold the
emergency button or cycle power.
7.9.3.2
Placing an Emergency Call
To place an Emergency Call:
1 If required, select a channel of a system on which Emergency Calls are enabled and
press the Emergency option switch (or select the menu option). The Emergency Call is
then sent as described in Section 6.9.1 if applicable.
then sent as described in Section 6.9.1 if applicable.
2 Emergency tones sound as follows: Emergency Call entry is played upon the pressing
of the Emergency button. Console Acknowledgement is played when an
acknowledgement is received back from the console for an emergency Call. Emergency
Exit is played when you press and hold the emergency button. Below are the tones for
Emergency.
acknowledgement is received back from the console for an emergency Call. Emergency
Exit is played when you press and hold the emergency button. Below are the tones for
Emergency.
3 If the preceding Emergency Hot Mic feature is enabled, the call is automatically
transmitted without pressing the PTT switch. If it is disabled, press the PTT switch and
begin speaking as with a standard call.
begin speaking as with a standard call.
4 All group calls which follow are then emergency calls (private, telephone, and call alert
calls are not allowed). If the channel is changed, the call is made on the emergency
talkgroup programmed for the new channel. If the Surveillance Mode is enabled (see
Section 5.10), all indicators, lights, and tones are disabled. If “No Receive Activity
During Emergency” is programmed, receive audio, the front panel LED, and receive
icons are disabled in the receive mode.
talkgroup programmed for the new channel. If the Surveillance Mode is enabled (see
Section 5.10), all indicators, lights, and tones are disabled. If “No Receive Activity
During Emergency” is programmed, receive audio, the front panel LED, and receive
icons are disabled in the receive mode.
Note
Communications between the radio with the emergency and the dispatcher are closed.
That is, other stations in the talkgroup can see “Emergency” toggle on their displays, and
can listen to talk between the dispatcher and the radio with the emergency, but cannot talk
to that radio.
That is, other stations in the talkgroup can see “Emergency” toggle on their displays, and
can listen to talk between the dispatcher and the radio with the emergency, but cannot talk
to that radio.
Console
Acknowledgement
Emergency Alarm
Ack
Emergency Alarm
Acknowledged
Successful
Two 1000 Hz 175 ms tones with
50 ms spacing followed by Three
1000 Hz 175 ms tones with 150
ms spacing
Emergency Call
Entry
Emergency Button
Press
Emergency button has
been Pressed
1000 Hz continuous tone for 175
ms.
Emergency Exit
Emergency Canceled Emergency is
Canceled
1000 Hz continuous tone for 1
sec.
Draft 4/29/2014