There was an error emailing this page. Hilton and Starwood will soon allow guests to unlock their rooms via a smartphone app. Starwood, owner of the Sheraton, Westin and W hotel chains, has upgraded 30,000 room locks in nearly 150 hotels so they can be unlocked with the new app. Hilton is planning to enable guests to do the same thing in its 600,000 rooms next year. That hotel chain will begin by piloting a smartphone app at 10 U.S. properties in early 2015. Also, in early 2015, Hilton's HHonors mobile room key app will be enabled at all U.S. properties of Conrad Hotels and Resorts.
Air gap (networking) An air gap, air wall or air gapping is a network security measure employed on one or more computers to ensure that a secure computer network is physically isolated from unsecured networks, such as the public Internet or an unsecured local area network.
AIR GAP The simplest way to prevent a backflow from occurring is to install an airgap. Refer to Figure 22-5. Air gaps should be twice the diameter of the pipeand not less than 1 inch. An air gap is the unobstructed vertical spacebetween the water supply and the flood rim of the receptacle.