Alphatech Slim IPDP - 01, Installation And Operating Instructions Manual, Page: 6 / 45

IPDP - installation and operating instructions
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1.2 Terminology

Ethernet is a family of frame-based computer networking technologies for local area
networks (LANs).

A local area network ( LAN ) is a computer network covering a small physical area,
like a home, office, or small group of buildings, such as a school, or an airport

10BASE-T runs over four wires (two twisted pairs) on a Category 3 or Category 5
cable.

100BASE-TX Uses two pairs, but requires Category 5 cable (FastEthernet)

Twisted pair cabling is a form of wiring in which two conductors (the forward and
return conductors of a single circuit) are twisted together for the purposes of
canceling out electromagnetic interference (EMI) from external sources.

UTP (unshielded twisted pair) cable is not surrounded by any shielding.

STP (shielded twisted pair) cables are often shielded in attempt to prevent
electromagnetic interference.

The World Wide Web (commonly abbreviated as the " Web ") is a system of
interlinked hypertext documents accessed via the Internet.

Hypertext Transfer Protocol ( HTTP ) is an application-level protocol for distributed,
collaborative, hypermedia information systems.

Universal Serial Bus ( USB ) is a serial bus standard to connect devices to a host
computer.

A video codec is a device or software that enables video compression and/or
decompression for digital video. H.264 is a standard for video compression, and is
equivalent to MPEG-4 AVC. H.263 is a video codec standard originally designed as
a low-bitrate compressed format for videoconferencing. MPEG-4 is collection of
methods defining compression of audio and visual (AV) digital data.

JPEG is a commonly used method of compression for photographic images.

Voice over Internet Protocol ( VoIP ) is a general term for a family of transmission
technologies for delivery of voice communications over IP networks such as the
Internet.

The Internet Protocol Suite (commonly known as TCP/IP ) is the set of
communications protocols used for the Internet

An Internet Protocol ( IP ) address is a numerical identification and logical address
that is assigned to devices participating in a computer network utilizing the Internet
Protocol for communication between its nodes.

Dynamic Host Configuration Protocol ( DHCP ) is a network application protocol
used by devices ( DHCP clients ) to obtain configuration information for operation in
an Internet Protocol network.

The Internet is a global system of interconnected computer networks that use the
standardized Internet Protocol Suite (TCP/IP).

An intranet is a private computer network that uses Internet technologies

Power over Ethernet or PoE technology describes a system to transfer electrical
power, along with data, to remote devices over standard twisted-pair cable in an
Ethernet network (we use only PoE standard IEEE802.3af Altern. A+B)

Network Time Protocol ( NTP ), a means of synchronizing clocks over a computer
network.