53Terminology802.11 AdHoc (Peer to Peer) modeThis mode performs communication directly between the projector and a computerwith a built-in wireless LAN or a computer with a wireless LAN card mounted. TheSSID must be set.Access pointA wireless station used to connect a wired LAN and a wireless LAN.AdHoc modeThis mode performs communication directly between the projector and a computerusing built-in wireless LAN or a computer with a wireless LAN card mounted. Theprojector and computer channel settings must be the same. Some cards do notsupport this mode.ChannelWhen multiple access points that use the same frequency band during communicationare installed near each other, radio wave interference may cause the communicationspeed to drop. The frequency band can be divided into 14 channels for communicationto reduce this interference in a wireless LAN. (The number of channels differsaccording to the country of use.) However, there is still some interference betweenadjacent channels, so communication channels should be separated by 2 or 3channels during actual use.DHCPAbbreviation for Dynamic Host Configuration Protocol. This function automaticallyassigns IP addresses to the connected equipment. If a device with the DHCP serverfunction is present within a LAN, it automatically assigns IP addresses to theconnected equipment. This is not supported on the projector side.GatewayThis is a relay point for connecting different networks.This refers to the hardware and software used when connecting a network with anetwork that uses a different protocol, etc. It adjusts the protocol and other differencesbetween networks to allow connection with other networks.Infrastructure modeThis mode performs communication via an access point connected to a wireds LAN.This makes it possible to transfer images to the projector through an access point evenfrom a computer without a wireless LAN card mounted.IP addressInternet Protocol (IP) is a protocol for distributing data, and the address correspondingto the data distribution destination is called the IP address. The same IP addresscannot be used within the same LAN.