Description The 4010-9721 Sensing and Control Unit offers premium installation, control and service features for customer applications in the mid-range market for addressable fire alarm systems. An integrated Ethernet port provides fast external system communications to expedite installation and service tasks. Dedicated compact flash storage provides secure on-site storage of system information for electronic task configuration files. Features Capacity for up to 1000 addressable IDNet points AND up to 127 SLI VESDA points. Up to 2,000 announcement points and up to 20 internal and external card addresses. 2 x 40 wide viewing angle LCD display with LED indicators and programmable control keys. Integrated 3 A IDNAC SLC circuits offer advanced power supply to addressable notification appliances. 2 A programmable function auxiliary output 8 A power supply with auxiliary power up to 2 A and battery charging capacity up to 110 Ah (UL) capacity for up to 500 addressable IDNet points and two Class B 3 A IDNAC SLCs with capacity for up to 254 devices addressable notification