Motorola SL7550 用户手册
Advanced Features
English
55
3
When an Emergency Alarm acknowledgment is received,
the Emergency tone sounds and the LED blinks green. The
display shows Alarm Sent.
OR
If your radio does not receive an Emergency Alarm
acknowledgement, and after all retries have been
exhausted, a tone sounds and the display shows
Alarm Failed.
the Emergency tone sounds and the LED blinks green. The
display shows Alarm Sent.
OR
If your radio does not receive an Emergency Alarm
acknowledgement, and after all retries have been
exhausted, a tone sounds and the display shows
Alarm Failed.
4
Radio exits the Emergency Alarm mode and returns to the
Home screen.
Home screen.
If your radio is set to Silent, it will not display any audio or visual
indicators during Emergency mode.
indicators during Emergency mode.
Sending an Emergency Alarm with Call
This feature allows you to send an Emergency Alarm to a group
of radios. Upon acknowledgement by a radio within the group,
the group of radios can communicate over a programmed
Emergency channel.
of radios. Upon acknowledgement by a radio within the group,
the group of radios can communicate over a programmed
Emergency channel.
Procedure:
1
Press the programmed Emergency On button.
2
The display shows Tx Alarm and the destination alias. The
LED lights up solid green and the Emergency icon appears.
LED lights up solid green and the Emergency icon appears.
3
When an Emergency Alarm acknowledgment is received,
the Emergency tone sounds and the LED blinks green. The
display shows Alarm Sent.
the Emergency tone sounds and the LED blinks green. The
display shows Alarm Sent.
4
Your radio enters the emergency call mode when the
display shows Emergency and the destination group alias.
display shows Emergency and the destination group alias.
5
Hold the radio vertically 1 to 2 inches (2.5 to 5.0 cm) from
your mouth.
your mouth.
6
Press PTT button to make the call. The LED lights up solid
green and the group icon appears on the display.
green and the group icon appears on the display.
7
Wait for the Talk Permit Tone to finish (if enabled) and
speak clearly into the microphone.
speak clearly into the microphone.
8
Release the PTT button to listen.
When you receive a group call, the display shows the caller
alias and group alias, the radio unmutes and the group call
sounds through the radio's speaker.
When you receive a group call, the display shows the caller
alias and group alias, the radio unmutes and the group call
sounds through the radio's speaker.
9
When the channel is free for you to respond, a short alert
tone sounds (if the Channel Free Indication feature is
enabled). Press the PTT button to respond.
OR
Once your call ends, press Emergency Off button to exit
the Emergency mode.
tone sounds (if the Channel Free Indication feature is
enabled). Press the PTT button to respond.
OR
Once your call ends, press Emergency Off button to exit
the Emergency mode.
10
The radio returns to the Home screen.
If your radio is set to Silent, it will not display any audio or visual
indicators during Emergency mode, or allow any received calls
to sound through the radio’s speaker, until you press the PTT
button to initiate the call.
indicators during Emergency mode, or allow any received calls
to sound through the radio’s speaker, until you press the PTT
button to initiate the call.
NAG-LACR.book Page 55 Tuesday, January 10, 2012 10:33 AM