Style 4 or Style 7 network interface
C version has annunciation and programmable control
D version annunciation only
Onboard USB programming port
Peer to peer, cross node operation
Monitored external Trouble input
Info displayed fully configurable to any combination of Fires, Troubles, Supervisory or other alarms
Both models include programmable status LEDs
Model ANN-C provides 3 freely programmable function keys
Optional tamper-proof and weatherproof enclosures
Surface or flush mount