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Samsung Network System Catalog

Network Terms

4140

Network Terms

NVR (Network Video Recorder)

Similar functionally to a DVR, however a NVR accepts IP

camera. NVRs can also be software based, meaning that they

can only accept IP camera streams over the Internet.

VBR (Variable Bit Rate)

Variable bit rate (VBR) is a term used in telecommunications and

computing that relates to the bit rate used in sound or video

encoding. VBR allows a higher bitrate (and therefore more

storage space) to be allocated to the more complex segments

of media files while less space is allocated to less complex

segments. The average of these rates can be calculated to

produce an average bitrate for the file.

GOP (Group of Picture)

In Video coding, a group of pictures, or GOP structure,

specifies the order in which intra- and inter-frames are

arranged. The GOP is a group of successive pictures within a

coded video stream. Each coded video stream consists of

successive GOPs. From the pictures contained in it, the visible

frames are generated.

IPv4 (Internet Protocol version 4)

Internet Protocol version 4 (IPv4) is the fourth revision in the

development of the Internet Protocol (IP). It is a connectionless

protocol for use on Ethernet networks. It operates on a best

effort delivery model; in that it does not guarantee delivery, nor

does it assure proper sequencing or avoidance of duplicate

delivery.

IPv6 (Internet Protocol version 6)

Internet Protocol version 6 (IPv6) is a version of the Internet

Protocol (IP) intended to succeed Internet Protocol version 4

(IPv4), which currently directs almost all Internet traffic, but is

running out of addresses. IPv6 allows up to 2128 addresses, a

massive increase from the 232 (about 4.3 billion) addresses

possible with IPv4, and includes several other improvements.

Ethernet

Ethernet is a family of computer networking technologies for

local area networks (LANs) The most commonly installed

Ethernet systems are 10BASE-T and 100BASE-T10, which

provide transmission speeds up to 10 Mbps and 100 Mbps

respectively. Systems communicating over an Ethernet divide

a stream of data into individual packets called frames. Each

frame contains source and destination addresses and error-

checking data so that damaged data can be detected and

re-transmitted.

Compression Algorithm

This is a algorithm to effectively transmit and/or record data

(video/audio). The most common video compression standard

used in security products are JPEG, MJPEG and H.264. The

H.264 is currently one of the most commonly used formats for the

recording, compression, and distribution of high definition video.

Modem (Modulation Demodulation)

A modem (modulator-demodulator) is a device that modulates an

analog carrier signal to encode digital information, and also

demodulates such a carrier signal to decode the transmitted

information. The goal is to produce a signal that can be transmitted

easily and decoded to reproduce the original digital data.

FDF (Fiber Distribution Frame)

The distribution frame is a passive device which terminates

cables, allowing arbitrary interconnections to be made. In

physical network security industry, the FDF refers to the

enclosure to protect the optical fibre cables for network devices.

Switch

A switch is a network device that connects network segments

together and which selects a path for sending a unit of data to its

next destination.

Backbone

A backbone network or network backbone is a part of computer

network infrastructure that interconnects various pieces of

network, providing a path for the exchange of information

between different LANs or sub networks. A backbone can tie

together diverse networks in the same building, in different

buildings in a campus environment, or over wide areas.

Normally, the backbone's capacity is greater than the networks

connected to it.

Streaming Server

Streaming server refers to the delivery method of the medium

rather than to the medium itself. It is a server that is constantly

received by and presented to an operator’s terminal while being

delivered by a streaming provider.

Streaming

Streaming refers to a sequence of data, video or voice elements

made available over time.

RJ45

A registered jack connector and wiring pattern used for the

connection of a high-speed computer modem and modem device.

UTP (Unshielded Twisted Pair cable)

A cable medium with one or more pairs of twisted insulated

copper conductors bound in a single sheath, with no overall or

individual screen. Currently the most common method of

bringing telephone signals and data to the desktop.

CAT.5 (Category 5 cable)

Category 5 cable (Cat 5) is an unshielded twisted pair cable

standard used in structured cabling for computer networks

such as Ethernet. It is also used to carry other signals such as

telephony and video, supporting a maximum speed of

100Mbps. This type of cable is commonly used in home/office

application.

CAT.6 (Category 6 cable)

Category 6 cable, commonly referred to as Cat 6, is a cable

standard for Gigabit Ethernet and other network physical layers

that is backward compatible with the Category 5/5e standards.

The cable standard provides performance of up to 250 MHz

and is suitable for 10BASE-T, 100BASE-TX (Fast Ethernet),

100 0 BAS E -T/1 0 00B A SE- T X (Gi g abi t Ethe r n e t) an d

10GBASE-T (10-Gigabit Ethernet).

SD (Standard Definition)

The term is usually used in reference to digital television, in

particular when broadcasting at the same (or similar) resolution

as analogue systems. In terms of the pixel resolution it includes

720 x 480 and 640 x480.

HD (High Definition)

The term refers to any video system of higher resolution than

standard-definition (SD) video, and most commonly involves

display resolutions of 1,280×720 pixels (720p) or 1,920×1,080

pixels (1080i/1080p). The 1080p sometimes refers to 'Full HD'.

PoE(PoE+) (Power over Ethernet)

Power over Ethernet provides power to a network device via

the same cable as used for the network connection. The

original IEEE 802.3af-2003 PoE standard provides up to 15.4

W of DC power (minimum 44 V DC and 350 mA to each device.

Only 12.95 W is assured to be available at the powered device

as some power is dissipated in the cable. The updated IEEE

802.3at-2009 PoE standard also known as PoE+ or PoE plus,

provides up to 25.5 W of power

TCP/IP (Transmission Control Protocol /

Internet Protocol

)

The TCP/IP model describes a set of general design guidelines

and implementations of specific networking protocols to enable

computers to communicate over a network. TCP/IP provides

end-to-end connectivity specifying how data should be

formatted, addressed, transmitted, routed and received at the

destination.

Protocol

A special set of rules gover ning how two entities will

communicate with each other. As an example it can refer to a

DVR sending a camera’s video image to PC via internet.

ONVIF (Open Network Video Interface Forum)

ONVIF (Open Network Video Interface Forum)) that was formed

to create a standard for how IP products within video

sur v e ill a n ce and o t her ph y s ica l s e curi t y are as can

communicate with each other.

CCD (Charge Coupled Device, CCD)

A charge coupled device (CCD) is a device that converts light

into an electrical charge, each pixel's charge value is converted

into a digital value by measuring the amount of charge at each

photosite and converting that measurement to binary form.

CMOS (Complementary Metal Oxide

Semiconductor)

A CMOS is a widely used type of semiconductor that uses both

negative and positive circuits. CMOS chips require less power

than chips using just one type of transistor. CMOS image

sensors also allow processing circuits to be included on the

same chip.

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