79
Click for contents
Glossary
RTSP (Real Time Streaming Protocol): A network protocol designed to trans-
mit video and audio information over networks and the internet in real time.
Saturation: This alters how much color is displayed in the image. The higher 
the saturation, the more bright and vivid colors will appear.
Server Port: Is a logical connection place and specifically, using the internet 
protocol TCP/IP, the way a client program specifies a particular server program on a computer in a network.
SEQ: Puts the DVR or NVR in sequence mode. This will repeatedly cycle 
through each video channel for a predetermined time in Live View mode.
S.M.A.R.T. (Self-Monitoring, Analysis & Reporting Technology): This is an 
automatic system on modern HDDs and SSDs to detect potential drive errors 
before they occur.
SMTP (Simple Mail Transfer Protocol): This is used to send an outbound 
email (e.g. from you DVR or NVR to an email address).
SMTP Port: Is the port number used by a SMTP server to listen for email 
send requests. This is specified by your email provider.
SMTP Server: This is the address of the server used for SMTP. Usually in the 
form of a web address (e.g. smtp.gmail.com).
Software: A set of instructions that runs on a computing device.
SSID: Is the technical term for a wireless network name. When you setup a 
wireless network, you give it a name to distinguish it from other networks in 
your neighbourhood.
SSL (Secure Socket Layer): A secure method for connecting to servers. In 
the context of the DVR or NVR, primarily used for email server connections.
Static: When referring to IP addresses, this is where a device’s IP address 
has been manually entered. Sometimes used on older devices without UIDs 
to prepare for internet access. 
Static DNS: In some circumstances, your internet service provider may re-
quire you to use a static DNS instead of an auto DNS on your router.
Substream: Is the video stream that your DVR or NVR will send to remote 
devices via the network or internet. Video quality is reduced to make it easier 
to send.
Subnet Mask: Used to define which part of the IP address refers to the net-
work location.
Time Server: Is a server that reads the actual time from a reference clock 
and distributes the information to its clients on the network.
Time Zone: Is a region that observes a uniform standard time for legal, com-
mercial, and social purposes. It is convenient for areas in close communication to keep the same time.
Timestamp: Is a sequence of characters or encoded information identifying 
when a certain event occurred, usually giving date and time of day, sometimes accurate to a small fraction of a second.
TVI: Is a digital signal processing and transport technology for video used in 
HD security cameras. TVI cameras currently support 1080p video resolution 
using the same coaxial cabling techniques used by traditional analogue CCTV 
cameras.
UID (Unique Identifier): Is an alphanumeric string that is associated with a 
single entity within a given system. By entering your UID into the mobile app 
or computer software, this allows you to communicate with your DVR or NVR 
without having to remember IP addresses or port numbers.