This digital interface box is designed for use with an applicable Panasonic projector. It operates as a switcher for DIGITAL LINK. Video, audio and control (LAN/serial) signals can be transmitted over distances of up to 100meters using only a LAN cable (CAT5e or greater STP cable). In addition to video and RGB signals, HDMI signals can be input. Switching is done using the projector’s wireless remote control or the control buttons of the digital interface box.