The base is for conventional dedectors to be addressable. Feeds from the panel and get controlled by panel.
Working voltage: 15-32 VDC
Max energy consuption: 400 A @27 VDC
Nominal power consumption : 250 A @ 27 VDC
Fire mode consumption: 5.5 A
Working temperature :-10 - +60
Weight :55 g
Dimentions : 102x17.7
The price does not include taxes and freight.