US 11,776,386 B2
Smoke sensor with test switch and method of operation thereof
Kim Bouchard, Saint-Laurent (CA); and Meagen Wyganowski, Chateauguay (CA)
Assigned to Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed by Tyco Fire & Security GmbH, Neuhausen am Rheinfall (CH)
Filed on Jun. 11, 2018, as Appl. No. 16/4,766.
Prior Publication US 2019/0378402 A1, Dec. 12, 2019
Int. Cl. G08B 7/06 (2006.01); G08B 29/14 (2006.01)
CPC G08B 29/145 (2013.01) [G08B 7/06 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A fire alarm initiating device, comprising:
a fire detection system for detecting an indication of fire;
a normally deactivated test switch that is activated during testing of the fire alarm initiating device; and
a controller of the fire alarm initiating device that senses the activation of the test switch, and in response, prevents the fire alarm initiating device from sending an alarm message to a control panel controller upon the fire detection system detecting the indication of fire, wherein:
the controller of the fire alarm initiating device includes pre-programmed instructions for operating the fire alarm initiating device in a normal mode and in a test mode;
the controller places the fire alarm initiating device into the test mode in response to sensing activation of the test switch;
while in the normal mode, the controller of the fire alarm initiating device sends alarm messages to the control panel controller in response to detecting indications of fire; and
while in the test mode, the controller of the fire alarm initiating device disables sending of the alarm messages from the fire alarm initiating device to the control panel controller.