Valcom IP bold series, Инструкция по установке и эксплуатации, Страница: 7 / 79

IP BOLD
- installation and operating instructions
7
1.2 Used terminology

Ethernet is technology which is used to build up local networks (LAN)

LAN - Local Area Network (local network) mark PC network which cover small
geographical area (for example homes, office, etc…).

10Base-T As transmission medium use twisted twoline cable with rate
10 Mbit/s. It used 2pairs of structured cabling from four.

100Base-TX Version with transmission rate 100 Mbit/s, which is named Fast
Ethernet . It used 2 pairs UTP or STP cable category 5.

Twisted 2line or also twisted pair is cable type which is used in PC networks.
Twisted 2line is created by cables pair which are regularly twisted in the length
and after pairs are twisted together.

UTP , Unshielded Twisted Pair

STP , Shielded Twisted Pair

WEB - World Wide Web (WWW, shortly web ), is mark for application of http
internet protocol

HTTP (Hypertext Transfer Protocol) is internet protocol design for exchange of
hypertex documents in format HTML

USB (Universal Serial Bus) . Modern way of accessories connection to PC

Video codec (compound of word begins
„
co der and dec ode
r“) . Compression
H.263 is derived from MPEG-4, H.264 is coder for format MPEG-4 AVC.
MPEG-4 is kind of video compression
– decreasement of pictures sequence
data flow

JPEG is standard method of loss making compression used for savings PC
pictures

Voice over Internet Protocol (shortly VoIP ) is technology allows transmission
of digitized voice in body of family protocols UDP/TCP/IP pockets via PC
network . It is used for calling via internet, intranet or any other data
connection.

TCP/IP contents set of protocols for communication in PC network and it is
main protocol of worldwide network Internet.

IP adresa is number which definitely identify network interface in PC network
which used IP protocol.

DHCP (Dynamic Host Configuration Protocol) is application protocol from
family TCP/IP. It is used for automatic assign of IP adresses to individual
computers in PC network. Due this simplify its management

Internet is worldwide system of mutually connected PC networks

Intranet
is PC network similiar to internet but it is „private“. It is designed jsut
for small group of subscribers (for example workers in some company)

PoE (Power over Ethernet) is powering via data network cable.

NTP ( Network Time Protocol ) is protocol for synchronization of internal PC
clocks