The Vocia® Life Safety Interface 16 (LSI-16) is a networked device that serves as an interface between a Vocia system and emergency or fire alarm systems. The LSI-16 may accept up to three sources of power: main power is from an external, standards compliant and battery backed 24V DC source; the LSI-16 can also utilize Power over Ethernet (PoE) delivered via either of its two network ports. The device is equipped with parallel I/O ports for direct interface to fire and emergency control equipment. The LSI-16 uses Ethernet-based control protocols to function within a Vocia system.