The BitStream BTS500 series of multi-port PoE switches are designed to provide PoE power with battery backup to 8023bt compatible IP devices such as access control panels, IP surveillance cameras, IP phones, locks, IR illuminators and other PoE compatible access control edge devices The BTS500 series products provide up to 90W of power per port and are compliant with the IEEE 8023bt standard The chart below shows the models in the BTS500 product family. The BTS500 series is compatible with the BX50 PoE splitter with Single-point Fire Interface (SFI) and the BX75 with local fire alarm disconnect Single-point Fire Interface (SFI) mode is a proprietary mode compatible with the BX50 PoE splitter SFI mode allows a single FACP connection at the BTS500 switch to drop lock power on all connected BX50 splitters, eliminating the need for an FACP connection at each door All models are fully network managed and are capable of charging battery sets from 4 to 18 amphours utilizing an internal float charger for central battery backup without excessive loading of the rack UPS.