The COSEC ARC IO800 is an input and output controller designed for installations that require the management of auxiliary signals, automation functions and access control operations, offering eight isolated inputs and eight dry contact outputs for connection with fire detection systems, sensors, sirens, strobes, elevators or other devices. The device communicates via Ethernet, PoE and RS-485, allowing integration into Matrix or third-party systems. It can operate as an elevator controller for up to eight floors, enabling floor-by-floor access control through external readers. It also supports standalone interlocking panel operation, allowing operating sequences for up to eight doors without the use of credentials, making it useful for disinfection chambers, airlocks or industrial areas. The device features LED indicators for network and operating status, while PoE power supply simplifies installation without the need for an external power supply. Its construction ensures stable operation in high-traffic environments with automation requirements, while the flexibility of its inputs and outputs makes it suitable for projects where a combination of access control and auxiliary functions is required.