AXIS 241Q, AXIS 241S, AXIS 241QA and AXIS 241SA Video Servers User’s Manual
About This Document This manual is intended for administrators and users of the AXIS 241Q and AXIS 241S Video Server (firmware release 4.30), and the AXIS 241QA and 241SA Video Server (firmware release 4.30). It 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.
AXIS 241Q/S/QA/SA Table of contents Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 AXIS 241Q/QA Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 AXIS 241S/SA Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Video Server Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AXIS 241Q/S/QA/SA PTZ Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 PTZ Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AXIS 241Q/S/QA/SA - Product Description Product Description This manual is applicable for the following Axis Video Servers: • • • • • AXIS 241S: 1-port video server AXIS 241Q: 4-port video server AXIS 241SA: 1-port video server including 2-way audio AXIS 241QA: 4-port video server including 2-way audio Blade versions The information provided in this manual applies to all models, unless otherwise indicated. The Video Server is fully featured for security surveillance and remote monitoring needs.
AXIS 241Q/S/QA/SA - Product Description The Video Server has a built-in web server, providing full access to all features through the use of a standard browser. The built-in scripting tool allows basic applications to be created, providing basic surveillance solutions. For advanced functionality, the Video Server can be integrated via the use of the AXIS HTTP API (see www.axis.com/developer).
AXIS 241Q/S/QA/SA - Product Description DIP Switches - A corresponding line termination switch for each of the supported video inputs. All units are shipped with the line termination enabled for each supported video input; that is, with the DIP switches set in the down-position. 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.
AXIS 241Q/S/QA/SA - Product Description AXIS 241S/SA Front Panel AXIS 241S Control Button AXIS 241SA Control Button Indicators - After completion of the startup and self test routines, the multi-colored Network, Status, Power Indicators flash as follows: Network Unlit No connection. Green Steady for connection to a 100 Mbit/s network. Flashes for network activity. Amber Steady for connection to a 10 Mbit/s network. Flashes for network activity.
AXIS 241Q/S/QA/SA - Product Description Video Input - Coaxial BNC connector supporting a single composite video source. The physical connection is made using 75 Ohm coax video cable with a recommended maximum length of 800 feet (250 meters). Note: The AXIS 241S/SA supports conversion between composite video and Y/C (S-video) using an Y/C to BNC cable. Video Output - A single video loop-through (VIDEO OUT) connected in parallel with VIDEO IN and terminated with a coax/BNC connector.
AXIS 241Q/S/QA/SA - Product Description Video Server Rear Panel The Serial Number is located on the label on the underside of the unit. Power Supply Connector - A single socket for connection of the PS-K power adapter. I/O Terminal connector - The I/O Terminal connector provides the physical interface to 4 digital transistor outputs, 4 digital inputs and an RS-485 interface. See Unit Connectors, on page 54 for more information.
AXIS 241Q/S/QA/SA - Using the Video Server Using the Video Server The Video Server can be used with most standard operating systems and browsers. The recommended browser is Internet Explorer with Windows, and Mozilla with other operating systems. See also the Technical Specifications, on page 63. Note: For information on installing the Video Server, please refer to the Installation Guide. Accessing the Video Server 1. Start your browser. 2.
AXIS 241Q/S/QA/SA - Using the Video Server Notes: •To view streaming video in Microsoft Internet Explorer, you must set your browser to allow the AXIS Media Control (AMC) to be installed on your computer. AMC is required to use audio in the AXIS 241QA/SA. AMC also provides an MPEG-4 decoder for viewing MPEG-4 video streams. This decoder is installed the first time an MPEG-4 video stream is accessed.
AXIS 241Q/S/QA/SA - Using the Video Server Use the Snapshot button to capture a snapshot of the image currently being displayed in the window. Right-click on the image to save it in on your computer. The AMC viewer toolbar (AXIS Media Control) is available in Microsoft Internet Explorer only and displays the following buttons: The Play/Stop buttons start and stop the media stream. The Snapshot button takes a snapshot of the currently displayed image.
AXIS 241Q/S/QA/SA - Video and Audio Streams Video and Audio Streams The Video Server provides several different video and audio stream formats. The type to use depends on your requirements and on the properties of your network. The Live View page in the Video Server provides access to Motion JPEG and MPEG-4 video and audio streams, as well as 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.
AXIS 241Q/S/QA/SA - Video and Audio Streams Notes: •MPEG-4 is licensed technology. The Video Server includes one license for the decoder required for viewing in AMC. Installing additional unlicensed copies of this decoder is prohibited. To purchase more decoder licenses, contact your Axis reseller. •All clients viewing the MPEG-4 stream must use the same image settings.
AXIS 241Q/S/QA/SA - 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 do 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.
AXIS 241Q/S/QA/SA - 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 to work in all cases. For some other clients, e.g. QuickTime™ the Video Object Type must be set to Simple. It may also be necessary to adjust the advanced MPEG-4 settings. To assess the video stream from e.g. QuickTime™ the following path can be used: rtsp:///mpeg4/#/media.
AXIS 241Q/S/QA/SA - Video and Audio Streams Java Applet The Java applet supports simplex audio.
AXIS 241Q/S/QA/SA - Configuring the Video Server Configuring the Video Server This section describes how to configure the Video Server and is intended for: • administrators, who have unrestricted access to all the Setup tools • operators, who have access to the Video & Image, Audio, Live View Config and Event Configuration settings. The Video Server is configured from the Setup link, in a standard browser (see also the Technical Specifications on page 63).
AXIS 241Q/S/QA/SA - Video & Image Settings Video & Image Settings The following descriptions show examples of the available features in the Video Server. 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 241Q/S/QA/SA - Video & Image Settings Text Overlay Settings Include date, time and/or text of your choice to be viewed on the image. The color of the text may be set to white or black, while background color may be set to white, black, transparent or semitransparent. The position of the text is set either to the top or the bottom of the image. Video Stream The Maximum video stream time can be set as Unlimited, or a maximum stream time per session in seconds, minutes or hours can be defined.
AXIS 241Q/S/QA/SA - Video & Image Settings Overlay/Mask Settings Overlay/Mask Type Date & Overlay/Mask Type allows you to Time place an overlay, or up to three image privacy masks over the video Overlay image: • Upload and place an image as an overlay - usually used to provide extra information in the video image. • Place up to three privacy masks - up to 3 configurable masks can be used to conceal different areas of the video image.
AXIS 241Q/S/QA/SA - 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 the Video Server is the same as the maximum image resolution. See Technical Specifications, on page 63.
AXIS 241Q/S/QA/SA - Video & Image Settings Advanced - MPEG-4 Settings Tools for adjusting the MPEG-4 settings and for controlling the video bit rate. The MPEG-4 standard provides many different coding tools for various applications in different situations. As most MPEG-4 clients do not support all of these tools, it is usual to instead define and use subsets for different clients or groups of clients. These settings allow you to define the type of viewing client to use.
AXIS 241Q/S/QA/SA - Audio (AXIS 241QA/SA only) Audio (AXIS 241QA/SA only) The AXIS 241QA/SA 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 for the AXIS 241QA/SA has an additional menu item called Audio, that allows different audio configurations to be set up, e.g. full duplex, half duplex and simplex. Note: The speaker attached to the audio output of the AXIS 241QA/SA must have a built-in amplifier, e.g.
AXIS 241Q/S/QA/SA - Audio (AXIS 241QA/SA only) Full-duplex mode means that you can transmit and receive audio (talk and listen) at the same time, without having to use any of the controls. This is just like having a telephone conversation. The only controls you may wish to use are the mute buttons to turn off the sound, and the sliders, to adjust the input/output volume levels. This mode requires that the client PC has a sound card with support for full-duplex audio. If your available bandwidth is 0.
AXIS 241Q/S/QA/SA - Audio (AXIS 241QA/SA only) If there are problems with the sound input being too low or high, it is possible to adjust the input gain for the microphone attached to the AXIS 241QA/SA. 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 Video Server. When satisfied with the settings, click Save, or click Reset to revert to the previously saved settings.
AXIS 241Q/S/QA/SA - Audio (AXIS 241QA/SA only) When the incoming sound is louder than the threshold, it will pass without any changes. When lower than the threshold, the incoming sound will be reduced by a certain attenuation factor. The threshold value should be set higher than the background noise, but lower than the useful audio. The noise canceller threshold value can be set to High, Medium High, Medium low and Low. A lower threshold will accept most of the audio to pass.
AXIS 241Q/S/QA/SA - 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 3 ways: • Use Axis look - the layout is unchanged. • Use custom settings - modify the default page with your own colors, images etc. Click the Configure button and see the following page. • Own Home Page - Upload and use your own custom made page as the default web page. Click the Configure button and see the following page.
AXIS 241Q/S/QA/SA - Live View Config Files Your own web files, background picture, color etc. must first be uploaded to the Video Server in order to be available 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, e.g. a file located on your workstation or click the Browse button. 2. Select the user level for the uploaded file.
AXIS 241Q/S/QA/SA - Live View Config For more information on the Axis HTTP API, see the Support / Developer pages on the Axis Web site at http://www.axis.com. See also the section on PTZ, on page 38. Action Buttons These buttons can be used to manually trigger and stop an event from the Live View page. See Event Servers, on page 33. The snapshot button allows you to take a snapshot of the video stream and save it to a computer.
AXIS 241Q/S/QA/SA - Live View Config External Video You can add links to other Axis network devices available over the network. These sources can be displayed on the Live View page, just as if they were video sources connected directly to the Video Server. Click the Add button to open the External Video Source Setup dialog, which is used to make all the necessary settings. Example of a path to an external video source: http://192.168.0.125/axis-cgi/mjpeg/video.
AXIS 241Q/S/QA/SA - Event Configuration Event Configuration This section describes how to configure the Video Server for alarm handling. Various actions can be configured to run when certain types of events occur. Event type A set of parameters describing how and when the Video Server is to perform certain actions Triggered Event (see page 34) - the circumstances that start an event Scheduled Event (see page 35) - the circumstances that start an event - what occurs when the event runs Action e.g.
AXIS 241Q/S/QA/SA - 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 e.g. 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 241Q/S/QA/SA - 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, e.g. 2 minutes before and after a door was opened. Check the Upload images checkbox under Event Types > Add Triggered... > When triggered... to expand the web page with the available options. Buffer size - AXIS 241Q/QA - up to 36 MB buffer; AXIS 241S/SA - up to 9 MB buffer.
AXIS 241Q/S/QA/SA - Event Configuration Please see the online help for descriptions of each available option. Motion Detection In the Motion Detection menu, you can configure the video source(s) for motion detection. The motion detection feature is used to generate an alarm whenever movement occurs (or stops) in the image. The AXIS 241Q/QA can use a maximum of 40 Include/Exclude windows, whilst the AXIS 241S/SA can use a maximum of 10.
AXIS 241Q/S/QA/SA - Event Configuration 6. Adjust the size (drag the bottom right-hand corner) and position (click on the text at the top and drag to the desired position). 7. Adjust the Object size, History and Sensitivity profile sliders (see table below for details). Any detected motion within an active window is then indicated by red peaks in the Activity window (the active window has a red frame). 8. Click Save.
AXIS 241Q/S/QA/SA - Pan Tilt Zoom Pan Tilt Zoom Installing PTZ Devices The Video Server 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 54 and 56 for more information. 2.
AXIS 241Q/S/QA/SA - 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 Video Server, PTZ Configuration now appears in the menu to the left along with the following submenus.
AXIS 241Q/S/QA/SA - Pan Tilt Zoom PTZ Controls If the Video Server has been appropriately configured, the Live View page will display the controls available for the installed Pan Tilt Zoom (PTZ) device. The administrator can enable/disable the controls for specified users. Preset positions Video sources Tilt bar (relative) The exact controls shown depends on the make and model of PTZ device. There may be e.g.
AXIS 241Q/S/QA/SA - Pan Tilt Zoom In contrast, when using an absolute driver, each position on the bar (see right) represents a defined position in the device’s range of movement, with the center of the bar representing the point midway between the two extremes of movement. Clicking a position directly on the bar moves the camera directly to the new position in one smooth movement. Clicking on the arrows at the ends of a bar causes a stepped, incremental change.
AXIS 241Q/S/QA/SA - Pan Tilt Zoom Preset Positions Also available with many PTZ devices are Preset positions. These presets are selected from the drop-down Source list on the Live View page and will move and/or zoom the camera to a pre-defined position, i.e. to cover an area of particular interest. Events can also be configured to go to preset positions when triggered. For information on setting up preset positions, please see Preset Positions, on page 39 and the online help.
AXIS 241Q/S/QA/SA - 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 241Q/S/QA/SA - Pan Tilt Zoom seconds after the their last PTZ control command. 2. Event - You can set up the AXIS 241Q/S/QA/SA to take control of the queue and move to a specific position for 20 seconds when triggered by an alarm. The event will immediately be place first in queue except when an administrator is in control. For more information see Triggered Event, on page 34. 3. Operator - Same as administrator with lower priority. 4.
AXIS 241Q/S/QA/SA - System Options System Options Security User access control is enabled by default, when the administrator sets the root password on first access.
AXIS 241Q/S/QA/SA - 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 241Q/S/QA/SA - System Options 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. • Synchronize with NTP Server - the Video Server will obtain the time from an NTP server every 60 minutes. Specify the NTP server's IP address or host name. Note: Note that if using a host name for the NTP server, a DNS server must be configured under TCP/IP settings.
AXIS 241Q/S/QA/SA - 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 241Q/S/QA/SA - System Options HTTPS The default HTTP port number (443) can be changed to any port within the range 1024-65535. This is useful for e.g. simple port mapping. 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. RTSP The RTSP protocol allows a connecting client to start an MPEG-4 stream. Enter the RTSP port number to use. The default setting is 554.
AXIS 241Q/S/QA/SA - 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, e.g. community name as password • SNMP V3 - provides encryption and secure passwords. Use with HTTPS.
AXIS 241Q/S/QA/SA - System Options 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. The settings that will not be reset are as follows: • the boot protocol (DHCP or static) • the static IP address • the default router • the subnet mask • the system time • Default - The default button should be used with caution.
AXIS 241Q/S/QA/SA - System Options Support The support overview page provides valuable information on troubleshooting and contact information, should you require technical assistance. The System Overview gives a quick look over the status of the camera. Logs & Reports - when contacting Axis support, please be sure to provide a valid Server Report with your query.
AXIS 241Q/S/QA/SA - System Options Resetting to the Factory Default Settings To reset the Video Server to the original default settings, go to the System Options > Maintenance web page (described in Maintenance, on page 51) or use the control button on the Video Server, as described below: Using the Control Button Follow the instructions below to reset the Video Server to the factory default settings using the Control Button. 1. Switch off the Video Server by disconnecting power. 2.
AXIS 241Q/S/QA/SA - Unit Connectors Unit Connectors The following connectors are described in this section: • • • • The D-Sub Connector, on page 54 The I/O Terminal Connector, on page 55 COM Ports RS-232 and RS-485, on page 56 Y/C to BNC Cable (AXIS 241S/SA only), on page 57 The D-Sub Connector The 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 stand-alone PTZ devices for the remote control of conne
AXIS 241Q/S/QA/SA - 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 e.g. motion detection, event triggering, time lapse recording, alarm notification via email, image storage to FTP locations, etc. • Inputs - e.g. a push button.
AXIS 241Q/S/QA/SA - Unit Connectors Schematic Diagram - I/O Terminal Connector Switch Mode Power Supply 3.3V Video Server Video Server + o PS-K 9W o ! 1 o GND 2 o e.g.
AXIS 241Q/S/QA/SA - Unit Connectors Y/C to BNC Cable (AXIS 241S/SA only) The AXIS 241S/SA 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: http://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 241Q/S/QA/SA - Troubleshooting Troubleshooting Checking the Firmware Firmware is software that determines the functionality of the 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 Video Server can be seen under Setup > Basic Configuration.
AXIS 241Q/S/QA/SA - Troubleshooting Emergency Recovery Procedure If power or the network connection to the 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 241Q/S/QA/SA - Troubleshooting Symptoms, Possible Causes and Remedial ActionsI Problems setting the IP address Using ARP/Ping - the IP address Restart the server and try again. Ensure also the ping length is set to 408. (See AXIS must be set within two minutes 241Q/S/QA/SA Video Server Installation Guide) after power has been applied to the Video Server The Video Server is located on a If the IP address intended for the Video Server and the IP address of your computer are located different subnet.
AXIS 241Q/S/QA/SA - 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 Web browser to allow ActiveX controls. Also, make sure that AXIS Media Control (AMC) component is installed on your workstation.
AXIS 241Q/S/QA/SA - 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 241Q/S/QA/SA - Technical Specifications Technical Specifications Item Specification Models • AXIS 241S: 1-channel video server • AXIS 241Q: 4-channel video server • AXIS 241SA: 1-channel video server with audio • AXIS 241QA: 4-channel video server with audio Video compression • Motion-JPEG, including single snapshot JPEG images.
AXIS 241Q/S/QA/SA - Technical Specifications Item Connectors Specification • Analog composite video, PAL/NTSC autosensing inputs • AXIS 241Q/QA: 4 BNC video inputs • AXIS 241S/SA: 1 BNC video input, 1 BNC output (loop through) or Y/C video input • Ethernet 10BaseT/100BaseTX, RJ-45 • Terminal block: 4 alarm inputs, 4 output transistors (max 24V, 0.1 A), 2-wire RS-485/422 (half-duplex), alternative voltage input • D-Sub connector: RS-232 • Power: 9V DC Line/Mic in Single 3.
AXIS 241Q/S/QA/SA - Technical Specifications Item Specification Approvals - EMC • EN55022:1998+A1 (CISPR 22:1997+A1) Class B • EN55024:1998+A1+A2 • EN61000-3-2:2000 • EN61000-3-3:1995+A1 • VCCI:2003, Class B, ITE (CISPR 22:1997+A1:2000, Class B) • C-Tick AS/NZS 3548 • FCC part 15, Subpart B, Class B, demonstrated by compliance with EN55022:1998 (CISPR 22:1997) Class B • ICES-003 Class B, demonstrated by compliance with EN 55022:1998, Class B Approvals - Safety • EN60950 • UL, CSA (PS-K power adapter)
AXIS 241Q/S/QA/SA - 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 241Q/S/QA/SA - Technical Specifications Frame rates - Motion JPEG The following test results show the frame rates in frames/second (fps) for Motion JPEG streams from the Video Server, using a compression level of 50%. Note that these values are guidelines only - actual values may vary.
AXIS 241Q/S/QA/SA - Technical Specifications Bandwidth As there are many factors affecting bandwidth, it is very difficult to predict the required amounts. The settings that affect bandwidth are: • • • • • • • the image resolution the image compression the frame rate the MPEG-4 object type the MPEG-4 GOV structure the analog cameras connected to the Video Server the audio settings There are also factors in the monitored scene that will affect the bandwidth.
AXIS 241Q/S/QA/SA - Glossary Glossary Active Speaker - a speaker with a built-in power amplifier. ActiveX - A control (or set of rules) used by a browser. ActiveX controls are often downloaded and installed automatically as required. AMC - AXIS Media Control. The control required for viewing video images in Internet Explorer. Installs automatically on first use. API - Application Programming Interface. The Axis API can be used for integrating Axis products into other applications.
AXIS 241Q/S/QA/SA - Glossary to which a packet should be forwarded on its way to its final destination. A router is often included as part of a network switch (see below). RTP- Real-Time Transfer Protocol. A transfer protocol designed for the delivery of live content, e.g. MPEG-4. Simplex - In simplex operation, a network cable or communications channel can only send information in one direction; it's a “one-way street”.
AXIS 241Q/S/QA/SA - Index 71 Index A Action 33 Action buttons 12, 31 Active/Inactive 12, 31 Administrators 19, 45 Advanced TCP/IP settings 48 Alarm 33, 36, 55 Allowed IP addresses 45 AMC 15 Anonymous viewers 45 Audio input 26 Audio mode 25 Audio output 27 Audio transmission 17 AXIS Internet Dynamic DNS Service 47 AXIS Media Control 26 B Backup 51 Bandwidth 14, 68 Basic TCP/IP settings 47 Buffers 35 C CGI links 30, 41 Click-in-image 41 COM Port RS-485 56 Constant bit rate 14 Control button 7, 8, 53 Cus
AXIS 241Q/S/QA/SA - Index M Maximum bandwidth 49 Motion detection 36 Motion JPEG 14, 17 MPEG-4 14, 17 MPEG-4 clients 17 MPEG-4 protocols 15 MPEG-4 settings 50 Multicasting 15 N Network indicator 8 Network settings 47 Network traffic 49 Notification of IP address change 47 O Operators 45 Output buttons 12, 31 Overlays 21 Own home page 30 Own web files 29 P Pan/Tilt/Zoom 40, 56 Pinout - I/O connectors 55 Port status 37 Ports & Devices 50 Post-trigger buffer 35 Preset positions 42 Pre-trigger buffer
AXIS 241Q/S/QA/SA - Index 73 Video source 12, 21 Video streams 14, 16, 21 View size 12 Y Y/C to BNC cable 57
