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Glossary
Domain
A domain contains a group of computers that can be accessed and administered with a common set of rules.
Domain can also refer to the IP address of a website on the Internet.
DNS
DNS (Domain Name System) is a system used by the Internet and private networks to translate domain names into
IP addresses.
mDNS
mDNS (Multicast DNS) refers to the use of IP multicast with DNS to translate domain names into IP addresses and
provide service discovery in a network that does not have access to a DNS server.
Ethernet
Ethernet, standardized as IEEE 802.3, refers to a series of technologies used to connect computers and other
devices to a LAN (Local Area Network) or wide area network (WAN).
Firmware
Firmware is a class of software held in non-volatile memory that provides the low-level control for a device’s
hardware.
Gigabit Ethernet (GigE)
An Ethernet capable of transmitting frames at a rate of a gigabit per second. A Gigabit capable Ethernet network
is recommended for NDI® production workflows.
IP
IP (Internet Protocol) is the communications protocol for the Internet, many wide area networks (WANs), and
most local area networks (LANs) that defines the rules, formats, and address scheme for exchanging datagrams or
packets between a source computer or device and a destination computer or device.
LAN
LAN (Local Area Network) is a network that connects computers and devices in a room, building, or group of
buildings. A system of LANs can also be connected to form a WAN (Wide Area Network).
Mbps
Mbps (Megabits per second) is a unit of measurement for data transfer speed, with one megabit equal to one
million bits. Network transmissions are commonly measured in Mbps.
NDI®
NDI® (Network Device Interface) is a standard allowing for transmission of video using standard LAN networking.
NDI® comes in two flavours, NDI® and NDI®|HX. NDI® is a variable bit rate, I-Frame codec that reaches rates
of around 140Mbps at 1080p60 and is visually lossless. NDI®|HX is a compressed, long-GOP, H.264 variant that
achieves rates around 12Mbps at 1080p60.
PELCO
PELCO is a camera control protocol used with PTZ cameras. See also VISCA.
PoE
Power over Ethernet
Port
A port is a communications channel for data transmission to and from a computer on a network. Each port is
identified by a 16-bit number between 0 and 65535, with each process, application, or service using a specific port
(or multiple ports) for data transmission. Port can also refer to a hardware socket used to physically connect a
device or device cable to your computer or network.
