Operation Manual
SFX SERIES USER’S GUIDE 
Rev 2.2 120 
Front Panel LED Indications 
When the Redundancy Option is installed and enabled, certain indicators on the front panel will behave differently and 
provide additional status information, as follows: 
Indicator Description 
CONTROL  This LED goes yellow when the receiver is the backup device. When it becomes master, it 
returns to its regular colour (see Chapter 1). 










