12Precautions for InstallationInstallation work shall be performed in accordance with the technology standard of theelectric installation.This product is designed to be usedindoors.This product is not operable outdoors.Do not expose this product to direct sunlightfor hours and do not install the product near aheater or an air conditioner. Otherwise, it maycause deformation, discoloration and malfunc-tion. Keep this product away from water andmoisture.Installation place• Place the unit correctly on a level surface.• Do not place the unit in the following plac-es:• Locations where it may get wet fromrain or water splash• Locations where a chemical agent isused such as a swimming pool• Locations subject to humidity, dust,steam and oil smoke• Locations in a specific environmentwhere a solvent or a flammable atmo-sphere exists• Locations where a radiation, an X-ray,a strong radio wave or a strong mag-netic field is generated• Locations where corrosive gas is pro-duced, Locations where it may bedamaged by briny air such as sea-shores• Locations where the temperature isnot within –10 °C to +50 °C {22 °F to122 °F}.• Locations subject to vibrations (Thisproduct is not designed for on-vehicleuse.)• Locations subject to condensation asthe result of severe changes in tem-peratureBe sure to remove this product if it is notin use.Radio disturbanceWhen this product is used near TV/radio anten-na, strong electric field or magnetic field (near amotor, a transformer or a power line), imagesmay be distorted and noise sound may be pro-duced.PoE (Power over Ethernet)Use a PoE hub/device that is compliant withIEEE802.3af standard.RouterWhen connecting this product to the Internet,use a broadband router with the port forward-ing function (NAT, IP masquerade).Refer to the Operating Instructions (PDF) forfurther information about the port forwardingfunction.SIGNAL GND terminalConnect this terminal with the SIGNAL GNDterminals of the devices in the system for signalground.When operating this unit and the devices in thesystem without signal ground, oscillation ornoise may be produced.Heat dissipationTo prevent this product from overheating, heedthe following. Failure to observe this may causefire or trouble.• Do not block the ventilation openings.Maintain the unit periodically to preventdust from blocking openings.