Chapter 1 Preparation — Precautions for use20 - ENGLISHf Prevent hot and cool air from the air conditioning system to blow directly to the ventilation ports (intake andexhaust) of the projector.100 mm (3-15/16") or longer500 mm (19-11/16") or longer 500 mm (19-11/16") or longer500 mm (19-11/16") or longerf Do not install the projector in a confined space.When installing the projector in a confined space, provide air conditioning or ventilation separately. Exhaust heatmay accumulate when the ventilation is not enough, triggering the protection circuit of the projector.SecurityWhen using this product, take safety measures against the following incidents.f Personal information being leaked via this productf Unauthorized operation of this product by a malicious third partyf Interfering or stopping of this product by a malicious third partyTake sufficient security measures.f Make your password difficult to guess as much as possible.f Change your password periodically. A password can be set in the [SECURITY] menu → [SECURITYPASSWORD CHANGE].f Panasonic Corporation or its affiliate companies will never ask for your password directly. Do not divulge yourpassword in case you receive such inquiries.f The connecting network must be secured by a firewall, etc.f Set a password for the web control and restrict the users who can log in. A password for the web control can beset in the [Change password] page of the web control screen.DIGITAL LINK“DIGITAL LINK” is a technology to transmit the video, audio, Ethernet, and serial control signals using a twistedpair cable by adding unique functions by Panasonic to the HDBaseT TM communication standard formulated byHDBaseT Alliance.This projector supports the optional Panasonic DIGITAL LINK output supported device (Model No.: ET-YFB100G,ET-YFB200G) and peripheral devices by other manufacturers (twisted-pair-cable transmitters such as the“XTP transmitter” of Extron Electronics) that use the same HDBaseT TM standard. For the devices of othermanufacturers that the operation has been verified with this projector, visit the Panasonic website (http://panasonic.net/avc/projector/). Note that the verification for devices of other manufacturers has been made for theitems set by Panasonic Corporation, and not all the operations have been verified. For operation or performanceproblems caused by the devices of other manufacturers, contact the respective manufacturers. This projectordoes not support audio transmission because it is not equipped with audio function.