Motorola SL7550 用户手册

call alert. Also indicates that radio has yet to respond to a group 
call alert, or radio is locked.
Solid green – Radio is powering up or transmitting. Also 
indicates full charge of the battery when programmable button 
is pressed.
Blinking green – Radio is powering up, receiving a non-
privacy-enabled call or data, or detecting activity over the air.
Double blinking green – Radio is receiving a privacy-enabled 
call or data. 

NOTE: While in conventional mode, when the LED blinks 

green, it indicates the radio detects activity over the air. 
Due to the nature of the digital protocol, this activity 
may or may not affect the radio's programmed channel.

For Capacity Plus, there is no LED indication when the 
radio is detecting activity over the air.

Alert tones provide you with audible indications of the radio’s 
status or the radio’s response to data received.

Continuous Tone A monotone sound. Sounds 

continuously until termination.

Sounds periodically depending on the 
duration set by the radio. Tone starts, 
stops, and repeats itself.

Repetitive Tone A single tone that repeats itself until it is 

terminated by the user.

Momentary Tone Sounds only once for a short period of 

time defined by the radio.

NAG-LACR.book  Page 19  Tuesday, January 10, 2012  10:33 AM