Question and Answer
53
Glossary
Term
Explanations
NVR Network
Video
Recorder
MPEG-4
Moving Pictures Experts Group
PU
Peripheral Unit, refers to IP Camera, encoder or decoder
NAT Network
Address
Translation
DHCP
Dynamic Host Configuration Protocol
SNTP
Simple Network Time Protocol
DDNS
Dynamic Domain Name Server
RTP Real-time
Transport
Protocol
RTCP
Real-time Control Protocol
CIF
Common Intermediate Format, resolution: 352×288
PPPoE
Point to Point Protocol over Ethernet
PAL
Phase Alternating Line, a TV system. China uses the PAL system.
NTSC
A television system promulgated by the National Television Systems Committee,
which is adopted in the USA and some European countries
VGA
Video Graphics Array, normally VGA is used for computer monitors
PTZ
Pan/Tilt/Zoom, omni-directional movement of the pan/tilt/zoom
(up/down/left/right), lens magnification, and focus control