Axis 212 PTZ-V [52/57] Axis 212 ptz v glossary of terms
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AXIS 212 PTZ/-V - Glossary of Terms
easier to remember than 192.0.34.166. The translation tables for
domain names are contained in Domain name servers.
Domain Server - Domains can also be used by organizations who wish
to centralize the management of their (Windows) computers. Each user
within a domain has an account that usually allows them to log in to
and use any computer in the domain, although restrictions may also
apply. The domain server is the server that authenticates the users on
the network.
Duplex - See Full-duplex.
Ethernet - Ethernet is the most widely installed local area network
technology. An Ethernet LAN typically uses special grades of twisted
pair wires. The most commonly installed Ethernet systems are 10BASE-T
and 100BASE-T10, which provide transmission speeds up to 10 Mbps
and 100 Mbps respectively.
ETRAX (Ethernet Token Ring AXIS) - Axis' own microprocessor.
Factory default settings - These are the settings that originally
applied for a device when it was first delivered from the factory. If it
should become necessary to reset a device to its factory default
settings, this will, for many devices, completely reset any settings that
were changed by the user.
Firewall - A firewall works as a barrier between networks, for example,
between a Local Area Network and the Internet. The firewall ensures
that only authorized users are allowed to access the one network from
the other. A firewall can be software running on a computer, or it can
be a standalone hardware device.
Focal length - Measured in millimeters, the focal length of a camera
lens determines the width of the horizontal field of view, which in turn
is measured in degrees.
FTP (File Transfer Protocol) - An application protocol that uses the
TCP/IP protocols. It is used to exchange files between
computers/devices on networks.
Frame - A frame is a complete video image. In the 2:1 interlaced
scanning format of the RS-170 and CCIR formats, a frame is made up of
two separate fields of 262.5 or 312.5 lines interlaced at 60 or 50 Hz to
form a complete frame, which appears at 30 or 25 Hz. In video cameras
with a progressive scan, each frame is scanned line-by-line and not
interlaced; most are also displayed at 30 and 25 Hz.
Frame rate - The frame rate used to describe the frequency at which a
video stream is updated is measured in frames per second (fps). A higher
frame rate is advantageous when there is movement in the video
stream, as it maintains image quality throughout.
Full-duplex - Transmission of data in two directions simultaneously. In
an audio system this would describe for example, a telephone systems.
Half-duplex also provides bi-directional communication, but only in one
direction at a time, as in a walkie-talkie system. See also Simplex.
Gain - Gain is the amplification factor and the extent to which an
analog amplifier boosts the strength of a signal. Amplification factors
are usually expressed in terms of power. Decibel (dB) is the most
common way of quantifying the gain of an amplifier.
Gateway - A gateway is a point in a network that acts as an entry
point to another network. In a corporate network for example, a
computer server acting as a gateway often also acts as a proxy server
and a firewall server. A gateway is often associated with both a router,
which knows where to direct a given packet of data that arrives at the
gateway, and a switch, which furnishes the actual path in and out of the
gateway for a given packet.
GIF (Graphics Interchange Format) - GIF is one of the most common
file formats used for images in web pages. There are two versions of the
format, 87a and 89a. Version 89a supports animations, i.e. a short
sequence of images within a single GIF file. GIF89a can also be specified
for interlaced presentation.
GOV (Group Of VOPs) -
A group of VOPs is the basic unit of an
M
PEG-4 video stream. The GOV contains different types and numbers of
VOPs (I-VOPs, P-VOPs, etc.) as determined by the GOV length and GOV
structure. See also VOP.
GOV length - The GOV length determines the number of images (VOPs)
in the GOV structure. See also GOV and VOP.
GOV structure - The GOV structure describes the composition of an
MPEG-4 video stream, as regards the type of images (I-VOPs or P-VOPs)
included in the stream, and their internal order. See also GOV and VOP.
Half-duplex - See Full-duplex.
HTML (Hypertext Markup Language) - HTML is the set of “markup”
symbols or codes inserted in a file intended for display in web browser.
The markup tells the browser how to display the page's words and
images for the user.
HTTP (Hypertext Transfer Protocol) - HTTP is the set of rules for
exchanging files (text, graphic images, sound, video, and other
multimedia files) on the web. The HTTP protocol runs on top of the
TCP/IP suite of protocols.
Hub - A (network) hub is used to connect multiple devices to the
network. The hub transmits all data to all devices connected to it,
whereas a switch will only transmit the data to the device it is
specifically intended for.
IEEE 802.11 - A family of standards for wireless LANs. The 802.11
standard supports 1 or 2 Mbit/s transmission on the 2.4 GHz band. IEEE
802.11b specifies an 11 Mbit/s data rate on the 2.4 GHz band, while
802.11a allows up to 54 Mbit/s on the 5 GHz band.
Image compression - Image compression minimizes the file size (in
bytes) of an image. Two of the most common compressed image formats
are JPEG and GIF.
Interlacing - Interlaced video is video captured at 50 pictures (known
as fields) per second, of which every 2 consecutive fields (at half height)
are then combined into 1 frame. Interlacing was developed many years
ago for the analog TV world and is still used widely today. It provides
good results when viewing motion in standard TV pictures, although
there is always some degree of distortion in the image.
To view interlaced video on for example, a computer monitor, the video
must first be de-interlaced, to produce progressive video, which consists
of complete images, one after the other, at 25 frames per second. See
also Progressive scan.
IP (Internet Protocol) - The Internet Protocol is a method transmitting
data over a network. Data to be sent is divided into individual and
completely independent “packets.” Each computer (or host) on the
Internet has at least one address that uniquely identifies it from all
others, and each data packet contains both the sender's address and the
receiver's address.
The Internet Protocol ensures that the data packets all arrive at the
Содержание
- User s manual 1
- Axis 212 ptz v user s manual 2
- Equipment modifications 2
- Intellectual property rights 2
- Liability 2
- Notices 2
- Support 2
- Trademark acknowledgments 2
- Axis 212 ptz v table of contents 3
- Contents 3
- Axis 212 ptz v table of contents 4
- Axis 212 ptz v product overview 5
- Key features 5
- Product overview 5
- Axis 212 ptz v product overview 6
- Hardware overview 6
- Axis 212 ptz v product overview 7
- I o terminal connector pinout 7
- Led indicators 7
- Access from a browser 8
- Accessing the camera 8
- Axis 212 ptz v accessing the camera 8
- Setting the root password 8
- Accessing the camera from the internet 9
- Adjust focus 9
- Axis 212 ptz v accessing the camera 9
- Axis media control 9
- Axis 212 ptz v the live view page 10
- The live view page 10
- Amc audio controls 11
- Axis 212 ptz v the live view page 11
- Pan tilt zoom controls 11
- The control panel 11
- Axis 212 ptz v video streams 12
- Axis media control amc 12
- How to stream mpeg 4 12
- Video streams 12
- Axis 212 ptz v video streams 13
- Motion jpeg 13
- Mpeg 4 13
- Other mpeg 4 clients 13
- Quicktime real player 13
- Stream types 13
- Alternative methods of accessing the video stream 14
- Axis 212 ptz v video streams 14
- Accessing the configuration menus 15
- Axis 212 ptz v configuration 15
- Configuration 15
- Axis 212 ptz v video and image settings 16
- Image appearance 16
- Overlay settings 16
- Video and image settings 16
- Video stream 16
- Advanced 17
- Axis 212 ptz v video and image settings 17
- Camera lighting conditions 17
- Overlay image 17
- White balance 17
- Axis 212 ptz v video and image settings 18
- Low light behavior 18
- Mpeg 4 18
- Audio settings 19
- Axis 212 ptz v audio settings 19
- Axis 212 ptz v audio settings 20
- Axis 212 ptz v live view config 21
- Layout 21
- Live view config 21
- Axis 212 ptz v live view config 22
- Custom settings 22
- Default video format 22
- Action buttons 23
- Axis 212 ptz v live view config 23
- Default viewer 23
- Viewer settings 23
- Axis 212 ptz v live view config 24
- User defined links 24
- Axis 212 ptz v live view config 25
- External video 25
- Html examples 25
- Sequence mode 25
- Advanced ctrl panel 26
- Axis 212 ptz v ptz configuration 26
- Guard tour 26
- Preset positions 26
- Ptz configuration 26
- Axis 212 ptz v event configuration 27
- Event configuration 27
- Event servers 27
- Event types 27
- Axis 212 ptz v event configuration 28
- Example 28
- How to set up a triggered event 28
- Pre trigger and post trigger buffers 28
- Triggered event 28
- Axis 212 ptz v event configuration 29
- Configuration example 29
- Motion detection 29
- Scheduled event 29
- Axis 212 ptz v event configuration 30
- Configuring motion detection 30
- Example 30
- Examples 30
- Motion detection parameters 30
- Port status 30
- Axis 212 ptz v system options 31
- Ip address filter 31
- Security 31
- System options 31
- Axis 212 ptz v system options 32
- Axis 212 ptz v system options 33
- Basic tcp ip settings 33
- Date time 33
- Network 33
- Advanced tcp ip settings 34
- Axis 212 ptz v system options 34
- Axis 212 ptz v system options 35
- Lan intranet wan internet 35
- Axis 212 ptz v system options 36
- Qos quality of service 36
- Qos settings 36
- Smtp email 36
- Axis 212 ptz v system options 37
- Bonjour 37
- Ports devices 37
- Traps for snmp v1 v2 37
- Axis 212 ptz v system options 38
- Configuration 38
- Maintenance 38
- Support 38
- Advanced 39
- Axis 212 ptz v system options 39
- Caution 39
- Resetting to the factory default settings 39
- Using the control button 39
- Axis 212 ptz v the i o terminal connector 40
- I o terminal connector 40
- Pinout and interface 40
- The i o terminal connector 40
- Axis 212 ptz v the i o terminal connector 41
- Terminal connectors schematics 41
- Axis 212 ptz v troubleshooting 42
- Checking the firmware 42
- Troubleshooting 42
- Upgrading the firmware 42
- Axis 212 ptz v troubleshooting 43
- Axis support 43
- Emergency recovery procedure 43
- Axis 212 ptz v troubleshooting 44
- Symptoms possible causes and remedial actions 44
- Axis 212 ptz v troubleshooting 45
- Axis 212 ptz v troubleshooting 46
- Axis 212 ptz v technical specifications 47
- Technical specifications 47
- Axis 212 ptz v technical specifications 48
- Axis 212 ptz v technical specifications 49
- Axis 212 ptz v technical specifications 50
- Bandwidth 50
- General performance considerations 50
- Optimizing your system 50
- Axis 212 ptz v glossary of terms 51
- Glossary of terms 51
- Axis 212 ptz v glossary of terms 52
- Axis 212 ptz v glossary of terms 53
- Axis 212 ptz v glossary of terms 54
- Axis 212 ptz v glossary of terms 55
- Axis 212 ptz v index 56
- Axis 212 ptz v index 57
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