Intercom set 2 family mounting brackets; nbsp; COMMAX DR-201AG + 2XDP-2S. The external station is removable with 2 buttons, and two telephone-type interiors. The set consists of: amp; nbsp; Aluminum outdoor station with 2 buttons (DP-2S compatible), buried mounting. 2 bucamp; nbsp; Indoor station for DR-2xx series for extension of RM201 sets **. Similar names to Commax Interface DR-201AG-2XDP-2S