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Anti-Dither This time value controls how long the alarm signal lasts. The values in this field can range from 5 to 600
seconds. Based on motion detection, a buzzer can go off, a tour can begin, a snapshot can be taken, or the camera can
begin recording.
DDNS Stands for Dynamic Domain Name System. DDNS is a method of automatically updating a name server in the
Domain Name System (DNS), often in real time, with the active DNS configuration of its configured hostnames,
addresses or other information.
Default Gateway The node on the computer network that the network software uses when an IP address does not
match any other routes in the routing table.
DHCP Dynamic Host Configuration Protocol is a network protocol that enables a server to automatically assign an IP
address to a computer from a defined range of numbers (i.e., a scope) configured for a given network.
Fluency Fluency described the lack of stuttering or excessive delay in a video stream. Fluency usually comes at the
expense of video quality when a network is constrained.
IP Address Internet Protocol Address is a unique numerical label assigned to each device connected to a computer
network. The IP address allows communication between different devices on a network.
Main Stream Main Stream is the main streaming protocol for the camera. Main stream uses more bandwidth and
attempts to keep quality and fluency high.
NO/NC Normally Open and Normally Closed are options for sensor type. These settings allow for different exposure
types when capturing video and still images.
NTP Network Time Protocol is a networking protocol for clock synchronization between computer systems over
packet-switched, variable-latency data networks.
P2P Peer-to-Peer is a decentralized communications model in which each party has the same capabilities and either
party can initiate a communication session.
PPPoE Point to Point Protocol over Ethernet is a network protocol for encapsulating Point to Point Protocol data
packets inside Ethernet frames.
QR Code Quick Response code is a type of digital barcode that enables devices to share complex data strings quickly.
Record Delay Record Delay specifies in seconds how long the delay between alarm activation and recording should
be.
Relay Out Relay Out triggers a connected alarm (connected to the alarm port on the back of the camera) when an
alarm on the camera is triggered.
S/N S/N stands for serial number. The S/N is unique to each camera and can be used to connect to different Amcrest
apps and services to provide different methods of access to the camera.
Sensitivity Sensitivity is the amount of change required to increase the motion detected by a percentage. The lower
the sensitivity, the more movement is required to trigger an alarm.
SMTP Simple Main Transfer Protocol is an Internet standard for electronic mail (e-mail) transmission.
Static IP An IP address that does not change.
Sub Stream Sub Stream is an alternative streaming protocol for the camera. Sub stream uses less bandwidth and
attempts to keep fluency high at the expense of quality.
Subnet Mask a 32-bit number that masks an IP address, and divides the IP address into network address and host
address.
TCP/IP TCP/IP stands for Transmission Control Protocol/Internet Protocol and it is the language/protocol that allows
communication between internet connected devices, whether on a local network, or a on the Internet at large.
Threshold Threshold is the level that the motion detection needs to reach to trigger an alarm.
UPnP UPnP stands for Universal Plug and Play, and it is a protocol used to easily connect devices to the internet.
Video Tamper Video Tamper refers to any major changes happening to the video feed such as it being blocked out,
interfered with, or disconnected.
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