Patent ID: 8511397

Claim:
A fire extinguishing system comprising: a first data bus including respectively a first power lead and a first command lead; multiple zones, each zone including a detector, a suppressor and an activation device, the first data bus directly connected and common to the detectors, suppressors and activation devices of the multiple zones; and a controller connected to the multiple zones via the first data bus; wherein each zone includes an activation module and at least one microprocessor in at least one of the detector and the activation module, each zone configured to operate independently from the controller to detect and suppress a suppression event; wherein the at least one microprocessor includes a first microprocessor and a second microprocessor, and the activation module includes the second microprocessor configured to receive a command from the first microprocessor and actuate the activation device in response to the command; and wherein the suppressor of each zone includes the activation device having a valve configured to selectively release a suppressant into a suppression area.