AXIS 243SA Video Server User’s Manual
About This Document This manual is intended for administrators and users of the AXIS 243SA, with firmware release 4.45. The manual includes instructions for using and managing the Video Server on your network. Previous experience of networking will be of use when installing and using this product. Some knowledge of UNIX or Linux-based systems would also be beneficial, for developing shell scripts and applications. Later versions of this document will be posted to the Axis Website, as required.
• Dispose of used batteries according to the manufacturer's instructions. AXIS 243SA Video Servers User’s Manual Revision 1.
AXIS 243SA Table of contents Product description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Switches & connectors. . . . . . . . . . . . . . . . . . . . . . . . . .
AXIS 243SA Pan Tilt Zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Installing PTZ devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 PTZ configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 PTZ controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AXIS 243SA Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AXIS 243SA - Product description Product description The AXIS 243SA is a one-port video server including two-way audio, fully featured for security surveillance and remote monitoring needs. It is based on the AXIS ARTPEC-2 compression chip, and can digitize one analog video source and make it available on the network as real-time, full frame rate Motion JPEG and/or MPEG-4 video streams. The AXIS 243SA is equipped with RS-232 and RS-485 ports for connecting third party PTZ systems.
AXIS 243SA - Product description The AXIS 243SA also provides a Line/Mic In (mono) connector for connecting an external microphone or other source producing a line level signal. An active speaker with a built-in amplifier can be connected to Line Out (mono) to enable two-way communication. Audio communication can be bi-directional (full-duplex), push to talk (half-duplex) or in one direction only (simplex).
AXIS 243SA - Product description Note: • If the video source is to be connected in parallel with other equipment, disable the input termination by turning the corresponding DIP switch to the up position (OFF). Failure to do so may cause reduced image quality. • The AXIS 243SA supports conversion between composite video and Y/C (S-Video) using a Y/C to BNC cable (not supplied).
AXIS 243SA - Product description Network connector - The AXIS 243SA connects to the network via a standard network cable, and automatically detects the speed of the local network segment (10BaseT/100BaseTX Ethernet). RS-232 connector - A 9-pin D-SUB connector providing an RS-232 serial connection. Typically used for connecting pan/tilt/zoom devices. See Unit connectors, on page 60 for more information.
Using AXIS 243SA Using AXIS 243SA The AXIS 243SA can be used with most standard operating systems and web browsers. The recommended browser is Internet Explorer with Microsoft Windows, and Firefox with other operating systems. See also the Technical specifications, on page 69. Note: For information on installing the video server, please refer to the Installation Guide. Accessinccg the video server 1. Start your web browser. 2.
Using AXIS 243SA The Live View page If your AXIS 243SA has been customized to meet specific requirements, the buttons and other items described below may or may not be displayed on the Live View page. The following provides an overview of each available button: The Video Format drop-down list allows you to temporarily change the video format on the Live View page. The Output buttons control an output directly from the Live View page. These buttons are configured under Setup > Live View Config > Layout.
Using AXIS 243SA Click the Record button to start a recording. The button must be configured to appear on the Live View Settings page. AMC Audio controls There are audio controls for controlling the client computer’s speaker output and microphone/line input. Click the Speaker and Microphone buttons to switch the sound off and on, for the speaker and microphone, respectively. Use the slider to control the volume on the speaker and microphone. The volume can be set between 0 and 100.
Video and audio streams Video and audio streams The AXIS 243SA provides several video and audio stream formats. The type you want to use depends on your requirements and the properties of your network. The Live View page in AXIS 243SA provides access to Motion JPEG and MPEG-4 video and audio streams, and to single JPEG images. Other applications and clients can also access these video and audio streams/images directly, without going via the Live View page.
Video and audio streams MPEG-4 protocols and communication methods To deliver live streaming video over IP networks, various combinations of transport protocols and broadcast methods are employed. • RTP (Real-Time Transport Protocol) is a protocol that allows programs to manage the real-time transmission of multimedia data, via unicast or multicast. • RTSP (Real-Time Streaming Protocol) serves as a control protocol, to negotiate which transport protocol to use for the stream.
Video and audio streams RTP+RTSP This method (actually RTP over UDP and RTSP over TCP) should be your first consideration for live video, especially when it is important to always have an up-to-date video stream, even if some images get dropped. This can be configured as multicast or unicast. Multicasting provides the most efficient usage of bandwidth, especially when there are large numbers of clients viewing simultaneously.
Video and audio streams Other MPEG-4 clients Although it may be possible to use other clients to view the MPEG-4 stream, it is not guaranteed that it will work in all cases. For some other clients, for example,. QuickTime™ the Video Object Type must be set to Simple. It may also be necessary to adjust the advanced MPEG-4 settings. To access the video stream, for example, from QuickTime™ the following path can be used: rtsp:///mpeg4/#/media.
AXIS 243SA - Configuring the video server Configuring the video server This section describes how to configure the Axis video server and is intended for administrators, who have unrestricted access to all the Setup tools The Axis video server is configured from the Setup link, in a standard web browser. For more information on supported browsers, see the Technical specifications, on page 69. Accessing the Setup tools Follow the instructions below to access the Setup Tools from a web browser. 1.
AXIS 243SA - Video & image settings Video & image settings The following descriptions show examples of the available features in the AXIS 243SA. For details of each setting, please refer to the online help available from each page. Click to access the online help. Image settings Image Appearance Modify the Image Appearance to optimize the video images according to your requirements.
AXIS 243SA - Video & image settings Video Stream The Maximum video stream time can be set as Unlimited, or set a maximum stream time per session in seconds, minutes or hours. When the set time has expired, a new stream on the Live View page can be started by refreshing the page in the web browser. Note that the maximum video stream time does not apply to clients connecting via multicast. To avoid bandwidth problems on the network, the frame rate allowed to each viewer can also be limited.
AXIS 243SA - Video & image settings Advanced - MJPEG settings Sometimes the image size is large due to low light or complex scenery. Adjusting the maximum frame size helps to control the bandwidth and storage used by the MJPEG video stream in these situations. Defining the frame size as Unlimited provides consistently good image quality at the expense of increased bandwidth and storage usage during low light. Limiting the frame size optimizes bandwidth and storage usage, but gives poor image quality.
AXIS 243SA - Video & image settings Overlay image requirements: Image Formats Image Size • Windows 24-bit BMP (full color) • Windows 4-bit BMP (16 colors) The height and width of the overlay image in pixels must be exactly divisible by 4. Overlay image limitations: • The maximum overlay image size supported by AXIS 243SA is the same as the maximum image resolution. See Technical Specifications, on page 69.
AXIS 243SA - Video & image settings 4. Click in the box beside Enable to enable one or more of the masks you have defined and click on Save.
AXIS 243SA - Audio Audio The AXIS 243SA can transmit audio to other clients using an external microphone and can play audio received from other clients by attaching a speaker. The Setup page has an additional menu item called Audio, which allows different audio configurations, such as, full duplex, half duplex and simplex. Note: The speaker attached to the audio output must have a built-in amplifier, as is the case with, for example, some PC speakers.
AXIS 243SA - Audio Half-duplex mode also transmits and receives audio in both directions, but only in one direction at a time. This means that you must select when to receive or transmit audio with the help of the push-to-talk button. To speak, press and hold the button (check that the microphone is not muted). When finished, release the button. You will now be receiving audio from the other end of the connection.
AXIS 243SA - Audio Depending on the selected encoding, set the desired Bit rate (audio quality). The settings depend on the available bandwidth and the required audio quality, that is, a high bit rate setting requires more bandwidth. Audio Output If the sound from the speaker is too low or high it is possible to adjust the output gain for the active speaker attached to the Axis video server. When satisfied with the settings, click Save, or click Reset to revert to the previously saved settings.
AXIS 243SA - Audio The noise canceller threshold value can be set to High, Medium High, Medium low and Low. A lower threshold allows most of the audio to pass. Only the weakest background noise is reduced. A higher threshold makes the noise canceller act on even stronger background noise. At the maximum level High, there is a risk of reducing useful audio as well. There is a trade-off between noise cancelling and sound quality.
AXIS 243SA - Live View Config Live View Config Layout These are the tools for deciding the layout of the Live View page. The layout can be set in three ways: • Use Axis look - the layout is unchanged. • Use custom settings - to modify the default page with your own colors, and images, click the Configure button. • Own Home Page Upload and use your own custom made page as the default web page. Click the Configure button to see this option.
AXIS 243SA - Live View Config Upload Own Web Files Your own web files, or background pictures must first be uploaded to the Axis video server in order that it appears for selection in the Custom Settings setup dialog. Once uploaded, the files are shown in the drop-down list. 1. Enter the path to the file located on your workstation or click the Browse button. 2. Select the user level for the uploaded file. Setting the user access level means that you determine the pages that different users. 3.
AXIS 243SA - Live View Config For more information on the VAPIX API, see the Developer pages at the Axis web site www.axis.com/developer. See also the section on PTZ, on page 38. Action Buttons The manual trigger buttons can be used to manually start and stop an event from the Live View page. See Event configuration, on page 32. The snapshot button allows you to take a snapshot of the video stream and save it to a computer.
AXIS 243SA - Live View Config The Motion JPEG selection has additional settings for Image Type, Image size and other optional settings for configuring the video stream to suit your web page. Click Update when satisfied. The video server then generates the required source code for your configuration. Copy this code and paste it into your own web page code. External Video You can add links to other Axis network devices available over the network.
AXIS 243SA - Event configuration Event configuration This section describes how to configure AXIS 243SA for alarm handling. Various actions can be configured to run when certain types of events occur.
AXIS 243SA - Event configuration Event types An event type is a set of parameters describing how and when the video server is to perform certain actions. Example: If somebody walks past the connected camera, and an event has been configured to act on this, the video server can record and send video images to an FTP server, or send a notification email to a pre-configured email address with a pre-configured message. Video images can be sent as an attachment with the email.
AXIS 243SA - Event configuration Pre-trigger and post-trigger buffers This function is very useful when checking to see what happened immediately before and after a trigger, for example, two minutes before and after a door was opened. Check the box against Upload images under Event Types > Add Triggered... > When triggered... to expand the web page with the available options. Buffer size - up to 9 MB buffer.
AXIS 243SA - Event configuration Camera tampering The camera tampering application generates an alarm whenever the camera is repositioned, or when the lens is covered, sprayed, or severely defocused. You must create an event, (see “How to set up a triggered event” (page -31)), for the camera to send an alarm. Motion detection In the Motion Detection menu, you can configure the video source(s) for motion detection.
AXIS 243SA - Event configuration Note: Using the motion detection feature may decrease overall performance in the video server. How to configure Motion Detection This example describes how to configure motion detection: 1. Click Motion Detection in the Event Configuration menu. 2. Click the Configure Included Windows radio button. 3. Click New. 4. Enter a descriptive name of your choice under Windows name. 5.
AXIS 243SA - Event configuration Please use the online help for descriptions of each available option.
AXIS 243SA - Pan Tilt Zoom Pan Tilt Zoom Installing PTZ devices AXIS 243SA supports several PTZ devices. Please see www.axis.com for a complete list of supported devices, and to obtain the correct driver. Follow the instructions below to install a PTZ device: 1. Using an appropriate cable, connect the device to your selected port (RS-232 or RS-485). These ports are available via the D-Sub connector and the I/O terminal connector, respectively. See pages 60 and 62 for more information. 2.
AXIS 243SA - Pan Tilt Zoom Note: Advanced users and application developers can also use the Axis Application Programming Interface and HTTP specification for generic control of PTZ devices using CGI commands or a TCP/IP client. Please refer to the Axis website at www.axis.com for further information. PTZ configuration Once PTZ has been installed for the AXIS 243SA, PTZ Configuration now appears in the menu to the left along with the following sub menus.
AXIS 243SA - Pan Tilt Zoom Guard tour A guard tour moves between chosen Preset Positions, one-by-one, in a pre-determined order or at random, and for configurable time periods. Unlike the Sequence Mode, which is a viewing application under Live View Config (see Live View Config, on page 28), the guard tour sequence will keep running, after the user has logged off or closed the browser.
AXIS 243SA - Pan Tilt Zoom OSD Menu - If the PTZ unit supports an internal configuration menu, this can be accessed using the On-Screen Display (OSD). Configure the analog camera by opening and navigating through its internal menu in this display. PTZ control queue Use the PTZ control queue window to enable and disable PTZ queueing.
AXIS 243SA - Pan Tilt Zoom The order of priority for taking control of the queue is as follows: 1. Administrators - An administrator takes over PTZ control regardless of who is first in queue. The administrator will be removed from the queue 60 seconds after their last PTZ control command. 2. Event - The AXIS 243SA can be set up to take control of the queue and move to a specific position for 20 seconds when triggered by an alarm.
AXIS 243SA - Pan Tilt Zoom PTZ controls If the Axis video server has been appropriately configured, the Live View page displays the controls available for the installed Pan Tilt Zoom (PTZ) device. The administrator can enable/disable the controls for specified users. The controls shown depends on the make and model of PTZ device. The most common controls are: • the Pan bar - moves the camera to the right and left • the Tilt bar - tips the camera up and down • the Zoom bar - zooms the view in and out.
AXIS 243SA - Pan Tilt Zoom When controlling the camera using a relative PTZ driver (see the bars in the illustration above) the new position is relative to the previous position, for example, left of, below, or above. Clicking the bar further from the center results in a larger movement.
AXIS 243SA - Pan Tilt Zoom To access the Auto iris and Auto focus buttons, click on the Control panel button. The menu to the right will then appear in the upper left hand corner of the screen. There are also driver specific shortcuts that can appear in the Control Panel. In the screen to the right, a driver has been installed that brings up the Wiper shortcut button, which allows the user to configure and use a windshield wiping action with the Axis video server.
AXIS 243SA - System options System options Security User access control is enabled by default, when the administrator sets the root password on first access.
AXIS 243SA - System options Notes: • If the referrals feature is enabled and you wish to also allow normal access to the Live View page, the product's own IP address or host name must be added to the list of allowed referrers. • Restricting referrers has no effect on an MPEG-4 video stream. To restrict an MPEG-4 stream, IP address filtering must be enabled. • Restricting referrers is of greatest value when not using IP address filtering.
AXIS 243SA - System options Clients and servers in an 802.1x network may need to authenticate each other by some means. In the Axis implementation this is done with the help of digital certificates provided by a Certification Authority. These are then validated by a third-party entity, such as a RADIUS server, examples of which are Free Radius and Microsoft Internet Authentication Service. To perform the authentication, the RADIUS server uses various EAP methods/protocols, of which there are many.
AXIS 243SA - System options The authentication process Axis video device 3 Certificate Q: Certificate OK? A: OK 2 Network switch Q: Certificate OK? A: OK 4 RADIUS server 1 Certificate Authority (CA) Certificate Protected network 1. A CA server provides the required signed certificates. 2. The Axis video device requests access to the protected network at the network switch. The switch forwards the video device’s CA certificate to the RADIUS server, which then replies to the switch. 3.
AXIS 243SA - System options Date & time Current server time - displays the current date and time (24h clock). The time can be displayed in 12h clock format in overlay images. New server time - select your time zone from the drop-down list and check the daylight saving time changes, if desired. From the Time Mode section, select the preferred method to use for setting the time: • Synchronize with computer time - sets the time from the clock on your computer.
AXIS 243SA - System options Notes: • DHCP is a protocol for automatic IP address assignment on a network. IP address assignment via DHCP may lead to the situation where the IP address changes and you lose contact with the camera. Configure the options for notification of IP address change (under Services) to receive notification from the camera when the IP address changes.
AXIS 243SA - System options Network - Advanced TCP/IP settings DNS configuration DNS (Domain Name Service) provides the translation of host names to IP addresses on your network. Obtain DNS server address via DHCP - automatically use the DNS server settings provided by the DHCP server. Click the View button to see the current settings.
AXIS 243SA - System options HTTPS The default HTTPS port number (443) can be changed to any port within the range 1024-65535. This is useful for simple port mapping among other things. NAT traversal Use NAT traversal when your video server is located on an intranet and you want to make it available from the other side of a NAT router. FTP The FTP server running in the Axis video server enables the upload of new firmware, and user applications. Check the box to enable the service.
AXIS 243SA - System options QoS (Quality of service) Quality of Service (QoS) provides the means to guarantee a certain level of a specified resource to selected traffic on a network. Quality can be defined as a maintained level of bandwidth, low latency, and no packet losses. The main benefits of a QoS-aware network are: • The ability to prioritize traffic and thus allow critical flows to be served before flows with lesser priority.
AXIS 243SA - System options SNMP The Simple Network Management Protocol (SNMP) allows the remote management of network devices. Select the version of SNMP to use, depending on the level of security required. Select the version of SNMP to use, by checking the appropriate box. The three levels of security are: • SNMP V1 - includes no security • SNMP V2c - uses very simple security, for example, community name as password • SNMP V3 - provides encryption and secure passwords. Use with HTTPS.
AXIS 243SA - System options RS485 - The COM ports on the AXIS 243SA supports several operational modes listed on this page. For more information, please see COM ports RS-232 and RS-485, on page 62. Maintenance • Restart - The unit is restarted without changing any of the settings. Use this method if the unit is not behaving as expected. • Restore - The unit is restarted and most current settings are reset to factory default values.
AXIS 243SA - System options Support Support Overview The support overview page provides valuable information on troubleshooting and contact information, should you require technical assistance. System Overview The System Overview provides a summary of the status of the video server. Logs & Reports When contacting Axis support, please be sure to provide a valid Server Report with your query. The Access Log is automatically included in the server report.
AXIS 243SA - System options Advanced Scripting is an advanced function that provides the possibility to customize and use scripts. This function is a very powerful tool. Caution! Improper use may cause unexpected behavior or even cause loss of contact with the unit. If a script does cause problems, reset the unit to its factory default settings. A backup file may be of use to return the unit to its latest configuration).
AXIS 243SA - System options Resetting to the factory default settings To reset the AXIS 243SA to the original default settings, go to the System Options > Maintenance web page (described in Maintenance, on page 56) or use the control button on the Axis video server, as described below: Using the Control Button Follow the instructions below to reset the AXIS 243SA to the factory default settings using the Control Button. 1. Switch off the Axis video server by disconnecting power. Control button 2.
AXIS 243SA - Unit connectors Unit connectors The following connectors are described in this section: • • • • The D-Sub connector, on page 60 The I/O terminal connector, on page 61 COM ports RS-232 and RS-485, on page 62 Y/C to BNC cable, on page 63 The D-Sub connector The Axis video server provides one 9-pin D-Sub connector, providing the physical interface for an RS-232 port, used for connecting accessory equipment; such as standalone PTZ devices for the remote control of connected video cameras.
AXIS 243SA - Unit connectors The I/O terminal connector This section describes the pinout and interface support provided by the 12-pin I/O terminal connector, which includes: • • • • 4 digital transistor outputs 4 digital inputs an RS-485 interface auxiliary power and GND The terminal connector is used in applications for motion detection, event triggering, time lapse recording, alarm notification via email, and image storage to FTP locations, for example. • Inputs - Example: a push button.
AXIS 243SA - Unit connectors Schematic diagram - I/O terminal connector Switch Mode Power Supply 3.3V + o Power adapter (9W) o z 1 o GND 2 o e.g.
AXIS 243SA - Unit connectors Y/C to BNC cable AXIS 243SA supports conversion from Y/C (S-video) to composite video using an Y/C to BNC cable. The cable is available as an accessory - see the Axis Web site at: www.axis.com. Follow these instructions to connect the Y/C to BNC cable: 1. Connect the BNC connector marked IN to the Video In connector on the video server. 2. Connect the BNC connector marked OUT to the Video OUT connector on the video server. 3.
AXIS 243SA - Troubleshooting Troubleshooting Checking the firmware Firmware is software that determines the functionality of the Axis video server. One of your first actions when troubleshooting a problem should be to check the currently installed version. The latest version may contain a correction that fixes your particular problem. The current firmware version in your Axis video server can be seen under Setup > Basic Configuration.
AXIS 243SA - Troubleshooting Emergency recovery procedure If power or the network connection to the Axis video server is lost during the upgrade, the process will fail and the unit will become unresponsive. A flashing red Status LED indicates a failed upgrade. To recover the unit, follow the steps below. The serial number is found on the underside label on the product casing. 1.
AXIS 243SA - Troubleshooting Symptoms, Possible Causes and Remedial Actions Problems setting the IP address Using ARP/Ping The IP address must be set within two minutes after power has been applied to the video server. Restart the server and try again. Ensure also the ping length is set to 408. (See the Axis video server Installation Guide) The video server is located on a different subnet.
AXIS 243SA - Troubleshooting No images displayed in the Web interface Problem with AMC (Internet Explorer only) To enable the updating of images in Microsoft Internet Explorer, set your browser to allow ActiveX controls. Also, make sure that AXIS Media Control (AMC) component is installed on your workstation.
AXIS 243SA - Troubleshooting Poor rendering of MPEG-4 images. Color depth set incorrectly on clients. Set to 16-bit or 32-bit color. If text overlays are blurred, or if there are other rendering problems, you may need to enable Advanced Video Rendering. This is done on the MPEG-4 tab in the AMC control panel applet. Ensure that your graphics card is using the latest device driver. The latest drivers can usually be downloaded from the manufacturer's web site.
AXIS 243SA - Technical specifications Technical specifications Item Specification Models • AXIS 243SA: One video channel, two-way audio Video compression • Motion JPEG • MPEG-4 Part 2 (ISO/IEC 14496-2) • Profiles: ASP and SP Resolutions • Resolutions 4CIF, 2CIFExp, 2CIF, CIF, QCIF • max 704x480 (NTSC) 704x576 (PAL) • min 160x120 (NTSC) 176x144 (PAL) Frame rate (NTSC/PAL) • Motion JPEG: Up to 30/25 fps in all resolutions • MPEG-4: Up to 30/25 fps in all resolutions Video streaming • Simultaneous
AXIS 243SA - Technical specifications Item Specification Connectors • Analog composite video, PAL/NTSC auto-sensing input • 1 BNC input, • 1 BNC output (loopthrough) or Y/C video input • RJ-45 for Ethernet 10BaseT/100BaseTX • Terminal block for 4 alarm inputs, 4 outputs, RS-485 half duplex port and alternative power connection • D-sub for RS-232 port • 3.5 mm jack for Mic or Line mono input • 3.5 mm jack for Line mono output Casing • Metal casing.
AXIS 243SA - Technical specifications Item Specification Included accessories • Installation Guide, • CD with installation and management tools, software and User’s Manual, • Power supply 9 V DC, • mounting brackets, • connector kit, • licenses for 1 encoder and 1 decoder, • decoder software for Windows Video management software (not included) • AXIS Camera Station - Video management software for viewing, recording and archiving up to 25 cameras See www.axis.com/partner/adp_partners.
AXIS 243SA - Technical specifications General performance considerations When setting up your system, it is important to consider how various settings and situations will affect performance. Some factors affect the amount of bandwidth (the bit rate) required, others can affect the frame rate, and some will affect both. If the load on the CPU reaches its maximum, this will also affect the frame rate.
AXIS 243SA - Technical specifications Frame rates - Motion JPEG The following test results show the frame rates in frames/second (fps) for Motion JPEG streams from the AXIS 243SA, using a compression level of 50%. Note that these values are guidelines only - actual values may vary.
AXIS 243SA - Technical specifications There are also factors in the monitored scene that will affect the bandwidth. These are: • the amount of motion • the image’s complexity • the lighting conditions For MPEG-4, if there is only limited bandwidth available, and if this is more important than the image quality, using a constant bit rate (CBR) is recommended. Use a variable bit rate (VBR) if the image quality needs to be maintained at a higher level.
AXIS 243SA - Glossary Glossary instead of an IP address to access the product from a web browser. Active Speaker - a speaker with a built-in power amplifier. AXIS IP Utility - A tool for discovering and setting IP addresses for Axis network devices. AXIS IP Utility is supplied free of charge by Axis. ActiveX - ActiveX is a standard that enables software components to interact with one another in a networked environment, regardless of the language(s) used to create them.
AXIS 243SA - Glossary network by using a video server. CGI (Common Gateway Interface) - A specification for communication between a web server and other (CGI) programs. For example, a HTML page that contains a form might use a CGI program to process the form data once it is submitted. CIF (Common Intermediate Format) - CIF refers to the analog video resolutions 352x288 pixels (PAL) and 352x240 pixels (NTSC). See also Resolution.
AXIS 243SA - Glossary integrated Ethernet networking and extremely flexible I/O options. at the gateway, and a switch, which furnishes the actual path in and out of the gateway for a given packet. 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.
AXIS 243SA - Glossary 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 e.g. 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.
AXIS 243SA - Glossary the coding format used by standard commercial DVD movies. networked PC, or a dedicated video recording hard disk server with its own software application. MPEG-4 - MPEG-4 is a group of audio and video coding standards and related technology. The primary uses for the MPEG-4 standard are web (streaming media) and CD distribution, conversational (videophone), and broadcast television.
AXIS 243SA - Glossary person running. A high-quality monitor is required to get the best from progressive scan. See also Interlacing. Protocol - A special set of rules governing how two entities will communicate. Protocols are found at many levels of communication, and there are hardware protocols and software protocols. Proxy server - In an enterprise that uses the Internet, a proxy server acts as an intermediary between a workstation user and the Internet.
AXIS 243SA - Glossary monitoring of network-attached devices for any conditions that warrant administrative attention. been granted for specific applications and data residing on that computer. Sockets - Sockets are a method for communication between a client program and a server program over a network. A socket is defined as "the endpoint in a connection".
AXIS 243SA - Glossary This detection can, for example, be used to trigger an alarm event in a network camera and start the upload of images from the camera. Video switcher - An analog video switcher sequentially displays full screen images, from one camera after another, typically at 3-5 seconds intervals. Other camera sources are not recorded while the image source from one camera is displayed on screen. VOP (Video Object Plane) - A VOP is an image frame in an MPEG-4 video stream.
../../../../shared_images/various_cmyk/axis_logo_color.eps 1 Images/243sa_front.eps 8 ../../Images/Photos/VS241Q_bak.tif @ 300 dpi 9 Images/enter_ip.tif @ 72 dpi 11 Images/243SA_UserDefinedLink.eps 11 ../../Images/Screenshots/format.tif 12 ../../Images/Screenshots/output.tif @ 300 dpi 12 ../../Images/Screenshots/output2.tif @ 300 dpi 12 ../../Images/Screenshots/seq_onoff.tif @ 100 dpi 12 ../../Images/Screenshots/trigger_onoff.tif @ 300 dpi 12 ../../Images/Screenshots/snapshot.tif @ 300 dpi 12 ../..
2 Images/243SA_PTZ_Configuration.eps 39 Images/243SA_GuardTour.tif @ 72 dpi 40 Images/243SA_OSDmenu.tif @ 72 dpi 41 Images/243SA_PTZ_controlQ.tif @ 72 dpi 41 ../../Images/Screenshots/help.tif 41 Images/243SA_PTZcontrols.eps 43 ../../Images/Screenshots/absolute_bar.tif 44 ../../Images/Screenshots/ptz_ctrl_panel.tiff 45 ../../Images/Screenshots/help.tif @ 300 dpi 47 ../../Images/Screenshots/help.tif @ 300 dpi 50 ../../Images/Screenshots/help.tif @ 300 dpi 51 ../../Images/Screenshots/help.tif @ 300 dpi 52 ..
AXIS 243SA - Index 3 Index DNS configuration 52 E A Access Log 57 Action buttons 30 Active/Inactive 12, 30 Administrators 18, 46 Advanced TCP/IP settings 52 Alarm 32, 35, 61 Allowed IP addresses 46 AMC Viewer Toolbar 12 Anonymous viewers 46 ARP/Ping 51 Audio input 25 Audio mode 24 Audio output 26 Audio settings 24 Audio transmission 17 AXIS Internet Dynamic DNS Service 51 AXIS Media Control (AMC) 15 B Backup 56 Bandwidth 14, 73 Basic TCP/IP settings 50 Buffers 34 C CGI links 29, 44 Click-in-image 44
4 AXIS 243SA - Index M Maximum bandwidth 53 Motion detection 35 Motion JPEG 14, 17 MPEG-4 14, 17 MPEG-4 clients 17 MPEG-4 protocols 15 MPEG-4 settings 55 Multicasting 15 N Network settings 50 Network traffic 53 O Operators 46 Output buttons 12, 30 Overlays 19 Own home page 29 Own web files 29 P Pan/Tilt/Zoom 43, 62 Pinout - I/O connectors 61 Port status 37 Ports & Devices 55 Post-trigger buffer 34 Preset positions 39 Pre-trigger buffer 34 PTZ commands 29, 44 PTZ control queue 41 Pulse 12, 30 Push-t
AXIS 243SA - Index 5 Viewer settings 30 Y Y/C to BNC cable 63
