The GPIO-1 is a networked device that serves as an extension interface between a Vocia system and emergency or fire alarm systems when used in conjunction with a Vocia® enhanced life safety interface (LSI-16e) or independently for connection to general purpose control systems. The GPIO-1 provides sixteen general purpose inputs and sixteen general purpose outputs to control various aspects of a Vocia system. The GPIO-1 is a monitored device and can be used in life safety applications where more logic inputs or outputs are required. The GPIO-1 has dual powering from PoE Ethernet ports and alternate powering from dual 24V DC inputs. In the event of power loss changeover between power sources will provide uninterrupted operation.