The signal transmitted which indicates the state of {TAIL ~ the badge}, includes transmitting which transition or change {HEAD ~ a badge} is undergoing, e.g., red to green, green to yellow, etc 
The signal transmitted which indicates the state of { TAIL ~ the badge } , includes transmitting which transition or change { HEAD ~ a badge } is undergoing , e.g. , red to green , green to yellow , etc
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH