PanasonicInstallation GuideModel Name Model No.Video Intercom System VL-SA74CXMain Monitor Station (7 Inches) VL-MA74CXDoor Station VL-VA504CX•This guide is for use with the above modelsPanasonicDoor Station•The Installation Guide can also be accessed from the following site:https://www.panasonic.com/mea/en/business/security/video-intercom.html•Door station is described as "doorphone" and Main monitor station is described as "mainmonitor" in this guide.•In this guide, the suffix of each model number (e.g., the "CX" in "VL-SA74CX") is omittedunless necessary.Main Monitor StationNote to the Installer•Before attempting to connect or operate this product, please read the label on the rear ofthe doorphone and the main monitor/extension monitor.•Please read this guide carefully, and install the product safely and correctly by followingthe instructions. Carefully read the information found in the section titled "For yourSafety" in particular.•Only use attachments/accessories specified by the manufacturer.•The installation shall be carried out in accordance with all applicable installation rules.•To the maximum extent permitted by law, Panasonic assumes no responsibility forinjuries or property damage resulting from failures arising out of improper installationor operation inconsistent with this document.•After installation, make sure to leave this guide with the customer.