Esser 808623 4-Channel Transponder

The Esser 808623 is a multifunctional interface module that acts as a bridge between the digital fire alarm loop and the “real world.” It provides four monitored inputs and two programmable outputs. The inputs can be configured to monitor dry contacts (like flow switches or dampers) or to connect conventional fire detectors. The two outputs are typically used to trigger external equipment, such as door holders, ventilation fans, or third-party signaling devices. Because it is an addressable device on the esserbus-PLus, the panel can identify exactly which input has been triggered, making it indispensable for building management and complex fire cause-and-effect logic.