The ECS/CMSI H4YA is a new generation of ECS/ Honeywell brand addressable CMSI, it has a basic a 128-point bus expandable to 256. Each bus can manage up to 99 detectors and 99 manual triggers or input / output devices. The ECS/CMSI H4YA provides 3 activation functions in safety freely configurable, as well as 1 function UGA for the evacuation of people. Simple to install, and quick to implement, the ECS/CMSI H4YA is the ideal solution for a number of buildings hotels, supermarkets, school groups, stores, offices, warehouses, etc. This ECS has been designed and developed to work with Series 200 addressable detectors. Honeywell brand. The latter with a modern and discreet design has been developed and manufactured by Honeywell to meet the most recent normative requirements, high performance combined with technology to limit the consequences of clogging. The individual addressing of the bus components allows precise identification of the origin of the alarm or fault information thus guaranteeing rapid, precise and effective. The presence of a short-circuit insulator in each element of the bus makes it one of the systems safest fire detection systems. In addition to the point detectors of the 200 series, a wide range of special detectors, such as linear optical detectors or suction detectors offer a technological response adapted to each need. This table has been tested according to standard EN 54-13 (system compatibility) guaranteeing Line monitoring information at any time in all conditions of use. A specific tool, the POL-200 was developed to facilitate implementation, troubleshooting and maintenance of the H4YA system. The H4YA is equipped with a UGA alarm management unit and CMSI 3 activation functions. safety with position control, in addition, it has an AES safety power supply in thus making it a complete and economical solution for a large number of establishments.