ACR Electronics PLB-350B User Manual
Page 10

Y1-03-0241A
9
NOTE: The appearance of your key pad may vary from this picture.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 2 - Key Pad Functions
NOTE: If you notice the PLB is flashing the red or green LED and 
“beeping” periodically on its own, this likely means it has accidentally 
been activated and needs to be shut off and reported as a false alert (see 
page 12). 
PLB-350B
Activation 
diagram 
When activated:
(Red LED)
transmitting
406 MHz during 
activation 
 
(
Green LED)
406 MHz
includes GPS data
(IR LED)
Programming
Interface 
(Not owner accessible) 
Self-test / 
GPS Test Button 
ON / OFF Button 
(visible only when 
antenna is deployed) 
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