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DS1097-010 149
Port
Forwarding In IT networks, port forwarding is the operation for transferring (forwarding) data from one
computer to another via a specific communication port. This technique may be used to allow
an external user to reach a host with a private IP address (in a LAN) by means of a port of the
public IP of the same. A router capable of automatically translating network addresses is
needed to perform this operation.
PPPOE PPPoE (Point-to-Point Protocol over Ethernet) indicates a network protocol which makes it
possible to encapsulate PPP frames in Ethernet frames providing the typical features of a
PPP protocol as the authentication functions, encryption and compression.
PTZ Acronym of Pan Tilt Zoom this is used to indicate a PTZ camera.
RTSP
Real Time Streaming Protocol is used to establish and manage streaming sessions between
server and client. The clients send controls similar to those of a video recorder to the media
server, such as play or pause, to control the playback of the audio/video files distributed by
the server in real time.
S.M.A.R.T. Acronym of Self-Monitoring, Analysis, and Reporting Technology. This is a system for
monitoring hard disks and SSD solid state devices to detect faults and provide various
reliability indicators.
SMTP
Simple Mail Transfer Protocol (SMTP) is the standard protocol for transmitting via emails on
the Internet.
TCP - TCP/IP The code TCP/IP has two meanings in computer science. It is used to indicate the two
fundamental Internet protocols (TCP and IP) and in a broader sense it indicates the whole of
the protocols used on the Internet.
UPnP Universal Plug and Play (UPnP) is a network protocol the objective of which is to allow
various terminals to connect to each other and to drastically simplify the use of home and
company networks. It indicates the possibility of using a device as soon as it is connected to
the computer or network.
UTC/UTC-Z Function available on the HVR for controlling AHD cameras. These functions are used to
navigate in the camera configuration menu and adjust its settings.
VBR
Variable Bit Rate means digital video transmission at variable speed.
VGA
Video Graphics Array is an analogue standard related to connect a computer to a monitor.