G4-304SD1a
User Manual & Install Guide
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GLOSSARY
Term/Abbreviation
Description
ACC
Accelerometer
CAN
Controller Area Network is a vehicle bus standard designed to allow
microcontrollers and devices to communicate with each other in
applications without a host computer.
G4-304SD1a
Digital Video Recorder – a device which records audio and video
input from the cameras and stores it to a hard disk drive and/or an
SD card for retrieval and viewing.
FTP
File Transfer Protocol is a standard network protocol used to transfer
computer files from one host to another host over a TCP-based
network, such as the Internet.
GPS
Global Positioning System – it is a radio navigation system that
allows land, sea, and airborne users to determine their exact location,
velocity, and time 24 hours a day, in all weather conditions, anywhere
in the world.
H.264
Also known as MPEG-4 Part 10, Advanced Video Coding (MPEG-4
AVC), this is a video coding format that is currently one of the most
commonly used formats for the recording, compression, and
distribution of video content.
ICD / ICD2
Interactive Control Display, purpose built touch screen monitors for
operating Gatekeeper Systems G4-304SD1a.
IO
Input/Output
IP Camera
An Internet protocol camera, or IP camera, is a type of digital video
camera commonly employed for surveillance, and which, unlike
analog closed circuit television cameras, can send and receive data
via a computer network and the Internet.
LAN
Local Area Network – it is a computer network that interconnects
computing devices within a limited area such as a school, work area,
or an office building.
LCD Monitor
Liquid Crystal Display Monitor – it is a display screen that uses
electronically modulated segments controlling a layer of liquid
crystals and arrayed in front of a light source (backlight) or reflector
to produce images and text.
MAC Address
Media Access Control address – it is a unique identifier assigned to
network interfaces for communications on the physical network
segment.
