Adtec digital EN-20 (version 2.03.06) Manual - Manual (Page 13)

EAS Green - EAS enabled.
QAM Status Indicator LEDs
Indicator Function
A/B/C A = 8 MHz
B = 6 MHz
256 Default for Annex B, can be selected for Annex A
128 not currently used
64 Optional for Annex B or Annex A
System/Function Satus Indicator LEDs
Indicator Function
Power Green - Power is on.
Off - Power is off
Alarm Off - no alarm
Yellow - minor alarm
Red - major alarm
Link Off - no link detected
Green - link active
Busy Off - no traffic
Green Flashing - traffic
EAS Green - Active, Audio + Video
Yellow - Active, audio only
Programming Function Buttons
Control Function
Mode Cycles through the available menus
Select selects a menu or sub-menu
Enter enter a value placed into a menu field
Escape return one level within a menu or to the main menu