DS1093-520
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GLOSSARY
ADPCM
Acronym of Adaptive Delta Pulse Code Modulation, a digital audio compression technique.
AGC
Automatic Gain Control is a function to improve viewing in poor light conditions.
AHD
Acronym of Analog High Definition, a protocol used for high-resolution transmissions on
video coaxial cable.
AMR
Automatic Motion Recording is the capability of starting a video recording when the system
identifies motion in the image framed by the camera.
CBR
Constant Bit Rate means digital video transmission at constant speed.
DDNS
Dynamic Domain Name System is the technology which allows an Internet DNS name to be
always associated with an IP address of a same device, even if the address changes over
time.
DHCP
Dynamic Host Configuration Protocol is used by Internet servers (belonging to DHCO server
functions) to automatically assign an IP address to a device which requires it.
DNS
Domain Name System - This is a decentralised hierarchic system used on the Internet to
associate a name of a device with its IP address.
DST
Acronym of Daylight Saving Time.
DVR
Digital Video Recorder.
e-SATA
External SATA (acronym of External Serial Advanced Technology) is a standard interface used
for connecting external devices to a computer, such as for example an HDD.
FPS
Frame per Second - This indicates the number of frames with which a video stream is
played/recorded. A higher number means a smoother film.
FTP
File Transfer Protocol is a standard used for transmitting data between hosts (generally
computer), based on TCP.
H.264
H.264/MPEG-4 AVC (Advanced Video Coding) is a standard digital video compression
standard.
H.265
High Efficiency Video Coding (HEVC or H.265) is a video compression standard which is the
development of H.264/MPEG-4 AVC (Advanced Video Coding). This improves video quality,
doubles the data compression ratio with respect to H.264 and supports 8k high definition
and resolutions higher than 8192×4320.
HDD
Acronym of Hard Disk Drive, i.e. a magnetic mass storage device which uses one or more
magnetised disks for storing data.
HDMI
Acronym of High-Definition Multimedia Interface, it is an audio/video interface used for
transferring non-compressed video data and compressed or non-compressed video data
from a compatible HDMI source, such as for example a PC or a digital video recorder.
IPC
This code identifies a camera capable of transmitting video stream in digital format on IP
network.
MAC
Address
A MAC address (MAC stands for Media Access Control), also known as physical address,
Ethernet address or LAN address, is a 48 bit (6 byte) code assigned univocally by the
manufacturer of each Ethernet or wireless card made in the world.
NTP
Network Time Protocol is used to synchronise the computer clocks in a Local Area Network
(LAN) or more generically on the Internet.
NVR
Acronym of Network Video Recorder is a digital device capable of storing audio/video
streams from digital cameras connected to the IP network.
OSD
On-Screen Display is an image superimposed on the image on the display frequently used on
modern television sets, video recorders and DVD players to record information such as
volume, channel, time and other information.
Summary of Contents for Hybrid DVR 1080N Series
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