With the surface mount kit XDX SHE made of pow- der coated stainless steel, an Intercom station can be mounted on a wall. The XDX SHE is primarily intended for subsequent installation on a wall or for installation on thin walls. The XDX SHE provides extra space to install accessories (e.g. EB3E2A-AUD, AFIL-USB, TAMP-KIT, POE-SPLIT, PA25WPOE-DC or IP-BRIDGE).