Mitsubishi Electric A7GT-BUS2 Multiple Drop Bus Connction is a handy device designed to facilitate the connection of up to three GOT (Graphics Operation Terminal) units, making it an ideal solution for expanding your system's capabilities. With the A7GT-BUS2, you can extend the distance between the connected GOT units by up to 30 meters, providing greater flexibility in your system setup. This device is compatible with various GOT models, including the A77GOT-S5 and A870GOT, and supports multiple base and extension units, giving you the versatility to tailor your system to your specific needs.