NVR User Manual
www.foscam.com
54
5.4 Glossary
Acrony
m
Term
Description
DDNS
Dynamic Domain
Name Server
Dynamic DNS is a method, protocol, or network service
that provides the capability for a networked device, such
as a router or computer system using the Internet Protocol
Suite, to notify a domain name server to change, in real
time (ad-hoc) the active DNS configuration of its
configured hostnames, addresses or other information
stored in DNS.
DHCP
Dynamic Host
Configuration
Protocol
DHCP is a network application protocol used by devices
(DHCP clients) to obtain configuration information for
operation in an Internet Protocol network.
HDD
Hard Disk Drive
A storage medium which stores digitally encoded data on
platters with magnetic surfaces.
PPPoE
Point-to-Point
Protocol over
Ethernet
It is a network protocol for encapsulating Point-to-Point Protocol
(PPP) frames inside Ethernet frames. It is used mainly with
ADSL services where
individual users connect to the ADSL transceiver (modem) over
Ethernet and in plain Metro Ethernet networks.
PTZ
Pan, Tilt, Zoom
PTZ cameras are motor driven systems that allow the camera to
pan left and right, tilt up and down and zoom in and out.
NTP
Network Time
Protocol
A protocol designed to synchronize the clocks of computers over
a network.
NVR
Network Video
Recorder
A NVR can be a PC-based or embedded system used for
centralized management and storage for IP cameras.
VMS
Video Management
System
Foscam VMS is a new tool for PC. It does not require plug-ins
and is compatible with Windows & Mac, It supports all Foscam
HD cameras and up to 36 cameras at the same time.
