Inter-M ECS-6216S - Manual (Page 8)

1. SPEAKER ZONE SELECT BUTTON AND DISPLAY (1~16)
LED will be turned on for the selected zone by the corresponding button which selects the individual
broadcast zone.
LED will be red in case of emergency broadcasting (ES) and will be green in case of general
broadcasting (PS).
The zone broadcasting can be selected only if more than 1 zone in the same bus is being broadcasted.
(Refer to system operation manual)