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Glossary of Terms
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Abnormality
–
Any malfunction in terms of storage of data to the SD card.
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Alarm Delay
–
The gap in time between alarm activation and Relay alarm activation.
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Alternate 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, and when the default gateway is not available.
Anti-Dither
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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.
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DDNS
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Stands for Dynamic Domain Name System. DDNS is a
method of automatically updating
Domain Name System (DNS), often in real time, with the active DNS configuration of its configured hostnames, addresses or
other information.
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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.
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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.
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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.
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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.
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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.
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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.
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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
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Simple Main Transfer Protocol is an Internet standard for electronic mail (e-mail) transmission.
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Static IP
–
An IP address that does not change.
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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.
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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.
