The N-8052DS is a 2-gang version of the N-8050DS. It is a door station designed to connect to an N-8000EX or N-8010EX intercom exchange. It provides high quality, hands-free conversation with a master station on an N-8000 system. The N-8052DS includes a remote controllable open collector control output (momentary 1-9 seconds). The N-8052DS supports the audio trigger function.