User manual AXIS 241S

AXIS 241Q, AXIS 241S, AXIS 241QA and AXIS 241SA Video Servers User's Manual 2 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. Later versions of this document will be posted to the Axis Website, as required. See also the product's online help, available via the Web-based interface. Europe - This digital equipment fulfills the requirements for radiated emission according to limit B of EN55022/1998, and the requirements for immunity according to EN55024/1998 residential, commercial, and light industry. Liability Every care has been taken in the preparation of this manual; Please inform your local Axis office of any inaccuracies or omissions. Axis Communications AB cannot be held responsible for any technical or typographical errors and reserves the right to make changes to the product and manuals without prior notice. Axis Communications AB makes no warranty of any kind with regard to the material contained within this document, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Axis Communications AB shall not be liable nor responsible for incidental or consequential damages in connection with the furnishing, performance or use of this material. Safety Notices Used In This Manual Caution! - Indicates a potential hazard that can damage the product. Important! - Indicates a hazard that can seriously impair operation. Do not proceed beyond any of the above notices until you have fully understood the implications. Trademark Acknowledgments Ethernet, Internet Explorer, Linux, Microsoft, Mozilla, OS/2, UNIX, Windows, WWW are registered trademarks of the respective holders. QuickTimeTM is a trademark of Apple Computer, Inc., registered in the U.S. and other countries. Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries. Axis Communications AB is independent of Sun Microsystems Inc. UPnPTM is a certification mark of the UPnPTM Implementers Corporation. Intellectual Property Rights Axis AB has intellectual property rights relating to technology embodied in the product described in this document. In particular, and without limitation, these intellectual property rights may include one or more of the patents listed at http://www.axis.com/patent.htm and one or more additional patents or pending patent applications in the US and other countries. This product contains licensed third-party software. See the menu item "About" in the product's user interface for more information. Support Services Should you require any technical assistance, please contact your Axis reseller. If your questions cannot be answered immediately, your reseller will forward your queries through the appropriate channels to ensure a rapid response. If you are connected to the Internet, you can: · download user documentation and firmware updates · find answers to resolved problems in the FAQ database. Search by product, category, or phrases · report problems to Axis support staff by logging in to your private support area · visit the Axis Support Web at www.axis.com/techsup/ Legal Considerations Camera and audio surveillance can be prohibited by laws that vary from country to country. Check the laws in your local region before using this product for surveillance purposes. This product includes one (1) MPEG-4 decoder license. To purchase further licenses, contact your reseller. Electromagnetic Compatibility (EMC) This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Re-orient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment to an outlet on a different circuit to the receiver. Consult your dealer or an experienced radio/TV technician for help. Shielded (STP) network cables must be used with this unit to ensure compliance with EMC standards. Safety Notice - Battery Replacement The Video Server uses a 3.0V CR2032 Lithium battery as the power supply for its internal real-time clock (RTC). This battery will, under normal conditions, last for a minimum of 5 years. Low battery power affects the operation of the RTC, causing it to reset at every power-up. A log message will appear when battery replacement is required. The battery should not be replaced unless required! If the battery does need replacing, observe the following points: Caution! · Danger of Explosion if battery is incorrectly replaced · Replace only with the same or equivalent battery, as recommended by the manufacturer. · Dispose of used batteries according to the manufacturer's instructions. USA - This equipment has been tested and found to comply with the limits for a Class B computing device pursuant to Subpart B of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user at his/her own expense will be required to take whatever measures may be required to correct the interference. AXIS 241Q/S/QA/SA Video Servers User's Manual Revision 1.1 Dated:November 2005 Part No: 26217 Copyright© Axis Communications AB, 2005 AXIS 241Q/S/QA/SA 3 Table of contents Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 AXIS 241Q/QA Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 AXIS 241S/SA Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Video Server Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Using the Video Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Accessing the Video Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 The Live View page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Video and Audio Streams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Video Stream Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 MPEG-4 protocols and communication methods . . . . . . . . . . . . . . . . . . . . . . . . . . 15 The AXIS Media Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 How to stream MPEG-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Other methods of accessing the video stream . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Configuring the Video Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Accessing the Setup tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Video & Image Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Image Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Video Source Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Overlay/Mask Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Advanced - MPEG-4 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Quad Stream Settings (AXIS 241QA/SA only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Audio (AXIS 241QA/SA only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Audio Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Live View Config . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 HTML Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 External Video. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Sequence Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Event Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Event Servers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Event Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Motion Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Port Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Pan Tilt Zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Installing PTZ Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 4 AXIS 241Q/S/QA/SA PTZ Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 PTZ Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Date & Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Network - Basic TCP/IP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Network - Advanced TCP/IP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 SOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 SMTP (email) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 SNMP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 UPnPTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 RTP (Multicast)/MPEG-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Ports & Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Advanced. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 Resetting to the Factory Default Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Unit Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 The D-Sub Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 The I/O Terminal Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Schematic Diagram - I/O Terminal Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 COM Ports RS-232 and RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Y/C to BNC Cable (AXIS 241S/SA only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Checking the Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Upgrading the Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 General performance considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Optimizing your system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Frame rates - Motion JPEG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Frame rates - MPEG-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 AXIS 241Q/S/QA/SA - Product Description 5 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. It is based on the AXIS ARTPEC-2 compression chip, and can digitize up to 4 analog video sources and make these available on the network as real-time, full frame rate Motion JPEG and/or MPEG-4 video streams. The AXIS 241Q/241QA has 4 BNC inputs for analog video devices and the AXIS 241S/SA has 1 BNC input and a matching loop-through output. The AXIS 241S/SA can also accommodate Y/C video using an Y/C to BNC cable (not included). The Video Server is equipped with RS-232 and RS-485 ports for connecting third party PTZ systems. It also has 4 alarm inputs and 4 alarm outputs, which can be used to connect various third party devices, e.g. door sensors and alarm bells. The AXIS 241QA/241SA has a Line/Mic In (mono) 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). Up to 20 viewers can access the Video Server simultaneously when using Motion JPEG and MPEG-4 unicast. Each MPEG-4 viewer requires a separate MPEG-4 decoder license, of which one is included. Additional licenses can be purchased separately from your Axis dealer. If using other clients to view the MPEG-4 video stream, no further MPEG-4 decoder licenses are required. Video can be viewed in 5 resolutions (up to 4CIF), and image compression is configurable. The Video Server contains support for video motion detection, which allows the unit to trigger on activity in the video image, and advanced scheduling tools which can also be used to trigger an event. As the Video Server is designed for use in security systems, it is equipped with several security features, such as IP address filtering, several user levels with passwords and HTTPS. 6 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/QA Front Panel AXIS 241Q AXIS 241QA Control Button Control Button Indicators - After completion of the startup and self-test routines, the multi-colored Network, Status and Power Indicators flash as follows: Unlit Network Green Amber Unlit Green Status Amber Red Power Green Amber No connection. Steady for connection to a 100 Mbit/s network. Flashes for network activity. Steady for connection to a 10 Mbit/s network. Flashes for network activity. When configured for "no flash" on camera access. Steady for normal operation. Can be configured to flash green at intervals whenever the camera is accessed. See the online help for more information. Steady during startup, reset to factory default or when restoring settings. Slow flash for failed upgrade. Normal operation. Flashes green/amber during firmware upgrade. 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. 7 Control Button - Press this button to restore the factory default settings, as described in Resetting to the Factory Default Settings, on page 53, or to install using AXIS Internet Dynamic DNS Service (See AXIS 241Q/S/QA/SA Video Server Installation Guide). Video Inputs - Accommodates up to 4 separate video sources (VIDEO 1 - VIDEO 4) simultaneously. Each supported video input is connected using a coax/BNC connector. Physical connections made using e.g. 75 Ohm coax video cable have a recommended maximum length of 800 feet (250 meters). Line Out (AXIS 241QA only) - Mono audio output (line level), which can be connected to a public address (PA) system or an active speaker with a built-in amplifier. A pair of headphones can also be attached. Line/Mic In (AXIS 241QA only) - One 3.5mm input for a mono microphone, or for line-in mono signal (only the left channel is used from a stereo signal). 8 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: Unlit Network Green Amber Unlit Green Status Amber Red Power Green No connection. Steady for connection to a 100 Mbit/s network. Flashes for network activity. Steady for connection to a 10 Mbit/s network. Flashes for network activity. When configured for "no flash" on camera access. Steady for normal operation. Can be configured to flash green at intervals whenever the camera is accessed. See the online help for more information. Steady during startup, reset to factory default or when restoring settings. Slow flash for failed upgrade. Normal operation. DIP Switches - upon delivery the AXIS 241S/SA is configured for composite video input. Switch Description Composite video input Y/C video input 1 75 ohm video in termination on on 2 75 ohm video out termination off on 3 Connects video in and video out on off 4 Not used n/a n/a Note: If the AXIS 241S/SA is to be connected in loop-through with other equipment, disable the input termination by setting switch 1 to the up-position (OFF). Failure to do this may cause reduced image quality. Control Button - Press this button to restore the factory default settings, as described in Resetting to the Factory Default Settings, on page 53, or to install using AXIS Internet Dynamic DNS Service (see AXIS 241Q/S/QA/SA Video Server Installation Guide). 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. 9 Video Output - A single video loop-through (VIDEO OUT) connected in parallel with VIDEO IN and terminated with a coax/BNC connector. Allows direct connection of e.g. an external monitor. Set DIP switch to OFF when in use. Line Out (AXIS 241SA only) - Mono audio output (line level), which can be connected to a public address (PA) system or an active speaker with a built-in amplifier. A pair of headphones can also be attached. Line/Mic In (AXIS 241SA only) - One 3.5mm input for a mono microphone, or for line-in mono signal (only the left channel is used from a stereo signal). 10 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. Note: The I/O Terminal connector also provides an auxiliary connection point for DC power. Network Connector - The Video Server connects to the network via a standard network cable, and automatically detects the speed of the local network segment (10BaseT/100BaseTX Ethernet). RS-232 Serial 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 54 for more information. AXIS 241Q/S/QA/SA - Using the Video Server 11 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. Enter the IP address or host name of the Video Server in the Location/Address field of your browser. 3. Enter the user name and password set by the administrator. 4. A video image is displayed in your browser. 12 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. Please note that the product administrator may have disabled the installation of the decoder, as a license is required for each instance. See page 31 for more information. ·If your workstation restricts the use of additional software components, the Video Server can be configured to use a Java applet for updating JPEG images. Please see the online help for more information. The Live View page If your Video Server 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: To resize the displayed image, click the View Size buttons: half-size (x1/2), full-size (x1), x2 or x4. This will not change the resolution of the image (not available in Sequence Mode). The Video Format drop-down list allows the video format on the Live View page to be temporarily changed. The Output buttons control an output directly from the Live View page. These buttons are configured under Setup > Live View Config > Layout. Pulse - click this button to activate the port for a defined period of time, e.g. to switch on a light for 20 seconds. Active/Inactive - click these buttons to manually start and stop a connected device, e.g. switch a light on/off. These buttons start/stop the Sequence Mode. This mode is created in Setup > Live View Config > Sequence mode and automatically displays the view from 2 or more video sources at set intervals. From the Source list, select the desired video image(s). The list can contain internal video sources, external video sources, or the Quad Stream view (AXIS 241Q/QA only). The Quad Stream option displays all four video images in one stream. The Action buttons trigger an event directly from the Live View page. These buttons are configured under Setup > Live View Config > Layout. Click these buttons to manually start and stop events. AXIS 241Q/S/QA/SA - Using the Video Server 13 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. The Snapshot function and the target directory for saving snapshots can be configured from AMC (AXIS Media Control), which is available from the Windows Control Panel (Internet Explorer only). Click the View Full Screen button and the video image will fill the entire screen area. No other windows will be visible. Press Esc (Escape) on your keyboard to cancel full screen view. Audio controls for AXIS 241QA/SA 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. When using Half-duplex mode, this button toggles between allowing you to speak and listen. The first icon indicates that you can talk and the speaker attached to the Video Server will play your voice. The second icon indicates that you will hear audio from the Video Server, but no audio will be sent to any web clients. When in simplex talk mode, the icon toggles between allowing you to speak and is dimmed when you do not want other clients to receive any audio. Note that these AMC toolbar functions can also be accessed by right-clicking in the image. For information on using Pan/Tilt/Zoom controls, please see Pan Tilt Zoom, on page 38. 14 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. Video Stream Types Motion JPEG This format uses standard JPEG still images in the video stream. These images are then displayed and updated at a rate sufficient to create a stream that shows constantly updated motion. The Motion JPEG stream uses considerable amounts of bandwidth, but also provides excellent image quality and access to each and every individual image contained in the stream. Note also that multiple clients accessing Motion JPEG streams can use different image settings. MPEG-4 This is a video compression standard that makes good use of bandwidth, and which can provide high-quality video streams at less than 1 Mbit/s. The MPEG-4 standard provides scope for a large range of different coding tools for use by various applications in different situations, and the Video Server provides certain subsets of these tools. These are represented as Video object types, which are selected for use with different viewing clients. The supported video object types are: · Simple - sets the coding type to H.263 · Advanced Simple - in Axis products, this sets the coding type to MPEG-4 Part 2 AMC (AXIS Media Control) supports both object types, whilst e.g. QuickTimeTM requires the Simple object type. When using MPEG-4 it is also possible to control the bit rate, which in turn allows the amount of bandwidth usage to be controlled. CBR (constant bit rate) is used to achieve a specific bit rate by varying the quality of the MPEG-4 stream. When using VBR (variable bit rate), the quality of the video stream is kept as constant as possible, at the cost of a varying bit rate. 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. 15 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. RTSP is thus used by a viewing client to start a unicast session, see below. · UDP (User Datagram Protocol) is a communications protocol that offers limited service for exchanging data in a network that uses the Internet Protocol (IP). UDP is an alternative to the Transmission Control Protocol (TCP). The advantage of UDP is that it is not required to deliver all data and may drop network packets when there is e.g. network congestion. This is suitable for live video, as there is no point in re-transmitting old information that will not be displayed anyway. · Unicasting is communication between a single sender and a single receiver over a network. This means that the video stream goes independently to each user, and each user gets their own stream. A benefit of unicasting is that if one stream fails, it only affects one user. · Multicast is bandwidth-conserving technology that reduces bandwidth usage by simultaneously delivering a single stream of information to multiple network recipients. This technology is used primarily on delimited networks (intranets), as each user needs an uninterrupted data flow and should not rely on network routers. The AXIS Media Control The recommended method of accessing live video (MPEG-4 and/or Motion JPEG) and audio from the Video Server is to use the AXIS Media Control (AMC) in Microsoft Internet Explorer in Windows. This ActiveX component is automatically installed on first use, after which it can be configured by opening the AMC Control Panel applet from the Windows Control Panel. Alternatively, right-click the video image in Internet Explorer. How to stream MPEG-4 Deciding on the combination of protocols and methods to use depends on your viewing requirements, and on the properties of your network. Setting the preferred method(s) is done in the control applet for AMC, which is found in the Windows Control Panel. When this has been set, AMC will test all the selected methods in the specified order, until the first functioning one is found. 16 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. Note however, that a multicast broadcast cannot pass a network router unless the router is configured to allow this. It is thus not possible to multicast over e.g. the Internet. Unicasting should be used for video-on-demand broadcasting, so that there is no video traffic on the network until a client connects and requests the stream. However, if more and more unicast clients connect simultaneously, the server will at some point become overloaded. There is also a maximum of 20 simultaneous viewers to be considered. RTP/RTSP This unicast method is RTP tunneled over RTSP. This can be used to exploit the fact that it is relatively simple to configure firewalls to allow RTSP traffic. RTP/RTSP/HTTP or RTP/RTSP/HTTPS These two methods can also be used to traverse firewalls. Firewalls are commonly configured to allow the HTTP protocol, thus allowing RTP to be tunneled. Other methods of accessing the video stream Video/images from the Video Server can also be accessed in the following ways: · If supported by the client, the Video Server can use Motion JPEG server push to display video. This option maintains an open HTTP connection to the browser and sends data as and when required, for as long as required. · As single JPEG images in a browser. Enter e.g. the path: http:///axis-cgi/jpg/image.cgi?resolution=CIF · Windows Media Player. This requires AMC and the MPEG-4 decoder to be installed. The paths that can be used are listed below, in the order of preference. · Unicast via RTP: axrtpu:///mpeg4/#/media.amp · Unicast via RTSP: axrtsp:///mpeg4/#/media.amp · Unicast via RTSP, tunneled via HTTP: axrtsphttp:///mpeg4/#/media.amp · Unicast via RTSP, tunneled via HTTPS: axrtsphttps:///mpeg4/#/media.amp · Multicast: axrtpm:///mpeg4/#/media.amp Notes: · = IP address. · # = video source number or the quad stream. This is set to 1 if omitted. AXIS 241Q/S/QA/SA - Video and Audio Streams 17 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. QuickTimeTM 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. QuickTimeTM the following path can be used: rtsp:///mpeg4/#/media.amp This path is for all supported methods, and the client will negotiate with the Video Server to determine exactly which transport protocol to use. Notes: · = IP address. · # = video source number or the quad stream. This is set to 1 if omitted. Audio transmission methods The audio stream can be accessed in the Live View page when viewing either Motion JPEG or MPEG-4. Using Motion JPEG The basic transmission method of audio used in conjunction with Motion JPEG video streaming is transmission over HTTP. The video and audio streams are not synchronized when using Motion JPEG so the streams may be slightly out of sync. The latency in any stream should be low, but this will depend on the network infrastructure. Using MPEG-4 When using MPEG-4, audio is streamed using the same protocol as the video stream. When audio is transmitted using MPEG-4, the Axis product sends synchronization information along with the streams to the client that is performing the synchronization. Note: Audio is streamed from the client to the server over HTTP when using Motion JPEG and MPEG-4. Accessing the Audio Streams In addition to accessing audio in the Live View page using AMC, audio from the Video Server can also be accessed in the following ways: HTTP-API You can read about accessing audio for the other protocols through the HTTP-API at http://www.axis.com/techsup QuickTime/Windows Media Player It is possible to use QuickTime and Windows Media Player to listen to the audio stream using the same methods to access video streams. 18 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 19 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). Accessing the Setup tools Follow the instructions below to access the Setup Tools from a browser. 1. Start the browser and enter the IP address or host name of the Video Server in the location/address field. 2. The Live View page is now displayed. Click Setup to display the Setup tools. Setup 20 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. All configuration of images and overlays will affect the performance of the Video Server, depending on the usage and the available bandwidth. · High resolution generates larger files · Lower compression improves image quality, but generates larger files · Black & White uses less bandwidth than Color · Rotating the image 90 or 270 degrees will lower the maximum frame rate See also the specifications for frame rates and bandwidth on page 67. 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. When the set time has expired, a new stream 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. Select either Unlimited or define a maximum frame rate per viewer. Test For a preview of the image and overlay settings before saving, click Test. When you are satisfied with the settings, click Save. 21 Video Source Settings These settings allow you to enter a descriptive name for the video source, and also to eliminate any black borders surrounding the image, by making Offset adjustments. See the online help for more information. AXIS 241S only: Select the physical connector the video source is connected to, BNC or Y/C. The AXIS 241S supports conversion between composite video and Y/C (s-video) using an ACC Y/C to BNC cable. · BNC (composite video) connects a standard video camera or other video equipment · Y/C (S-video) connects a Y/C (S-video) camera or other video equipment 22 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. Selecting the overlay/mask type from the menu will display further settings available for the selected type. See the online help for further information. Note: If you need to see an area of the video that is covered by an overlay or mask, a privacy mask cannot be bypassed. An overlay image, however, can be bypassed with the help of the AXIS HTTP API. Upload and use an overlay To upload an overlay image to the camera: 1. Select Uploaded image as overlay in the drop-down list for Overlay/Mask Type. New options appear. 2. In the field Upload own image, click the Browse button and locate the image file on your computer or server. 3. Click the Upload button and follow the on-screen instructions. To use an already uploaded image: 1. Select an uploaded image from the Use image drop-down list. 2. Place the image at the required location by entering the x and y coordinates. 3. Click Save. AXIS 241Q/S/QA/SA - Video & Image Settings 23 Overlay image requirements: Image Formats · · Windows 24-bit BMP (full color) Windows 4-bit BMP (16 colors) Image Size 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. · When a text overlay is also used, this reduces the amount of space available to the overlay image. To keep the text readable at lower resolutions, the text overlay occupies proportionally more of the image at lower resolutions. · If the overlay is initially positioned so that part of it is outside the video image, it will be relocated so that it appears over the video image, i.e. it is always the entire image that is displayed. Please see the online help for more information. Use a Privacy Mask To use privacy masks to hide different areas of the video image: 1. Select Configurable areas as privacy mask in the drop-down list for Overlay/Mask Type. New options appear. 2. Enter the (x,y) coordinates of the top left hand corner of the mask, and the height and width to define the masks' placement and size. 3. Select the privacy masks' color: black, grey, white, or red. 4. Click in the box beside Enable to enable one or more of the masks you have defined and click on Save. 24 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. Adjusting the maximum bit rate and setting it to variable or constant is a good way of controlling the bandwidth used by the MPEG-4 video stream. For more information on these advanced settings, please see the online help. Quad Stream Settings (AXIS 241QA/SA only) The settings are the same as the individual image settings and are active only when the quad stream view is selected, see Image Settings, on page 20. AXIS 241Q/S/QA/SA - Audio (AXIS 241QA/SA only) 25 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. some PC speakers. Audio Settings This section describes how to configure the basic audio settings for the AXIS 241QA/SA, e.g. set the communication mode and adjust the sound levels in the microphone and speaker connected to the camera. Enable Audio Select the video sources that the AXIS 241QA/SA will transmit and receive audio from. Audio Channels There are two mono audio channels between the AXIS 241QA/SA and other clients, one for receiving audio and one for transmitting audio. Each audio channel can be turned on or off, which means that there are four audio mode options that can be used. 26 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 0.2 Mbit/s or less, it is recommended that you use Half-duplex mode instead. 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 speaking, release the button. You will now be receiving audio from the other end of the connection. Note that the push-to-talk button is configured from AMC, see The AXIS Media Control, on page 15. It is also possible to configure the push-to-talk button so that it toggles between speaking and listening modes. Half-Duplex mode is best if you only have limited bandwidth available. When you select Simplex - AXIS 241QA/SA speaker only mode, the speaker connected to the AXIS 241QA/SA will play audio, but no audio will be transmitted from the AXIS 241QA/SA to other web clients. This could be used to e.g. provide spoken instructions to a person seen in a camera. This mode requires you to use the push-to-talk button. Simplex - AXIS 241QA/SA microphone only mode only transmits audio from the AXIS 241QA/SA to any web clients. It will not receive audio from any other web clients. This can be used in remote monitoring, web attractions etc., to provide live audio, as well as video, of a monitored situation. When using half-duplex, the Send the sound from the active client to all other clients option transmits the audio signal from the client that is talking to all the other clients. Audio Input Audio from an external microphone or a line source can be connected to the Line/Mic in jack of the AXIS 241QA/SA. The audio source can be set to Microphone or Line. If you are using a microphone, the input sensitivity can be set to High or Low. See Technical Specifications, on page 63 for the exact maximum levels. The Enable microphone power option provides DC power for the external microphone. If you use a small electret condenser microphone such as a clip-on mic or a PC microphone, this option needs to be enabled. To use a high impedance dynamic microphone, DC power should not be enabled. DC power will not harm the microphone, but if you are uncertain, try switching it off and on. By default value is DC power enabled. To use a professional microphone requiring 48V phantom power, you need an external power supply and must use a balanced-unbalanced converter (audio transformer) in between. 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. Advanced Audio Settings The Advanced Quality Settings allows you to tune the audio input to suit your environment. 27 Enable speech filter improves the sound quality if using a microphone that is placed close to the person talking and can also help reduce background noise. The filter cuts the lowest and the highest frequencies. The bypass frequency range is approximately 250Hz to 3700Hz (measured at -10dB cut-off break points). Enable echo cancellation can reduce the feedback generated when using full duplex. If sound distortion is encountered, turning echo cancellation off may improve the sound quality. Noise canceling is a way of reducing the background noise when there is no useful audio present. A typical application could be when there a noisy environment and you are only interested in hearing the sound when someone is speaking close to a microphone. There are two adjustable parameters available to optimize this function: · Noise canceller threshold value · Noise canceller attenuation 28 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. Only the weakest background noise will be reduced. A higher threshold will make 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 canceling and sound quality. In other words, increasing the noise canceller attenuation deteriorates sound quality. Adjust the threshold and the attenuation to an optimum by listening and changing the levels. AXIS 241Q/S/QA/SA - Live View Config 29 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. The other settings on this page concern which other features to include, e.g. buttons and links. See page 30 for more information. Customizing the default page The appearance of the default Video Server Live View page can be customized to suit your own requirements, or you can upload and use your own home page. To upload your own files, click the Upload/Remove button and see the description below. Upload Own Web Note that the setup address is http:///operator/basic.shtml 30 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. Setting the user access level means that you have complete control over which pages can be viewed by which users. 3. When the path is shown correctly in the text field, click the Upload button. All uploaded files are shown in the list in the lower section of the page. To remove a file, check the box provided next to it and then click the Remove button. · To use your uploaded file, click the radio button and select the file from the drop-down list by Own. · To use an external file located somewhere other than in the Video Server, click the radio button and enter the URL by External: Own Home Page To use a previously uploaded web page as the default page, check the checkbox, select the page from the drop-down list and click OK. User Defined Links Enter a descriptive name and enter the URL in the provided field. The link will appear on the Live View page. User defined CGI links can be used to issue HTTP API requests, e.g. PTZ commands. Example: 1. Check Show Custom Link 1 2. Enter a descriptive name, e.g. CAM1 Start PTZ. 3. Enter the cgi link: http://192.168.0.125/axis-cgi/com/ptz.cgi? camera=1&continuouspantiltmove=30,-30 4. Check Show Custom Link 2. 5. Enter a descriptive name, e.g. CAM1 Stop PTZ. 6. Enter the cgi link: http://192.168.0.125/axis-cgi/com/ptz.cgi?camera=1&continuouspantiltmove=0,0 7. These links will appear in the web interface and can be used to control the PTZ camera User Defined Links 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. Output Buttons These buttons are used to control the outputs on the Video Server and thus the equipment connected to them, e.g. to switch a light on or off: · The Pulse button activates the port for a defined period · Active/Inactive displays 2 buttons, one for each action (on/off) Default Video Format Select the default format to use on the Live View page. Checking the box for Show video format selection displays a drop-down list on the Live View page allowing you to temporarily change the format. Viewer Settings Checking the Show viewer toolbar box displays the AMC toolbar under the video stream in Microsoft Internet Explorer. By checking the Enable MPEG-4 decoder installation box, it is also possible for the Administrator to enable or disable the installation of the MPEG-4 decoder. This is used to prevent the installation of unlicensed copies. Further decoder licenses can be purchased from your Axis dealer. Default Viewer for Motion JPEG Select the appropriate radio button to define the method for viewing moving video images, depending on your browser and settings. Please see the online help for more information. 31 HTML Examples You can add live video from your Video Server to your own web site. The Video Server can send Motion-JPEG or MPEG-4 images to up to 20 simultaneous connections, although an administrator can restrict this to fewer. This does not affect or include the number of multicast viewers. Enter the Image Type, Image size and other settings to suit your web page and click Update. 32 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.cgi Sequence Mode The live view page can be configured to rotate through selected internal and/or external video sources, in order or randomly. PTZ preset positions can also be included. Select the desired video sources and enter the time in seconds to display each source (up to 59 minutes). Click Save. The Sequence buttons will appear on the Live View page to allow the viewer to start and stop the sequence mode. Please see the online help for more information. AXIS 241Q/S/QA/SA - Event Configuration 33 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 Triggered Event (see page 34) A set of parameters describing how and when the Video Server is to perform certain actions - the circumstances that start an event e.g. at a signal from an external device, such as a door switch or a motion sensor e.g. at a pre-programmed time e.g. video images uploaded to an FTP server, email notification sent, etc. Scheduled Event (see page 35) - the circumstances that start an event Action - what occurs when the event runs Event Servers Event Servers are used for e.g. receiving uploaded image files and/or notification messages. To set up Event server for your Video Server, go to Setup > Event Configuration > Event Servers and enter the required information according to the selected server type. Server type Purpose · receives uploaded images Information required · · · · · Descriptive name of your choice User Name and Password (to FTP server) Upload path, e.g. images/ Port number Use passive mode if there is a firewall between the Video Server and FTP server ·Use temporary file if your FTP server doesn't allow an existing file to be overwritten by a new file with the same name. Descriptive name of your choice URL (address) User Name and Password (to HTTP server) Proxy address/Proxy port (if required) Proxy User Name and Password (if required) FTP Server · receives notification messages · receives uploaded images HTTP Server · · · · · · receives notification messages TCP Server · Descriptive name of your choice · User Name and Password (for TCP server) · Port number For details on each setting, please refer to the online help page. available from each web Note: Pre-trigger and Post-trigger buffers will be lost if the connection to the event server fails. When the setup is complete, the connection can be tested by clicking the Test button (the connection test takes approximately 10 seconds). 34 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. Triggered Event A triggered event is activated by e.g: · · · · · a push button connected to an input port on the Video Server detected movement in a configured motion detection window a lost signal from a video source a manually activated action e.g. from an action button in the web interface on restart (reboot) after e.g. power loss How to set up a triggered event This example describes how to set the Video Server to upload images when the main door is opened: 1. Click Add triggered on the Event types page. 2. Enter a descriptive name for the event, e.g. Main door. 3. Set the priority - High, Normal or Low (see online help files). 4. Select which Video Source the event is to act on, e.g. Video 1 on Main door. 5. Set the Respond to Trigger... parameters when the event is to be active, e.g. only after office hours 6. Select the trigger alternative from the Triggered by... drop-down list, e.g. an Input port with a connected sensor if the door is opened. 7. Set the When Triggered... parameters, i.e. set what the Video Server should do if the main door is opened, e.g. upload images to an FTP server. 8. Click OK to save the event in the Event Types list. Please see the online help for descriptions of each available option. 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. The maximum length of time of the pre-/post-buffer depends on the selected image size and frame rate. Include pre-trigger buffer - images stored internally in the server from the time immediately preceding the trigger. Check the box to enable the pre-trigger buffer, enter the desired length of time and specify the required image frequency. Include post-trigger buffer - contains images from the time immediately after the trigger. Configure as for pre-trigger. Note: If the pre- or post-buffer is too large for the Video Server's internal memory, the frame rate will be reduced and individual images may be missing. If this occurs, an entry will be created in the unit's log file. 35 Continue image upload (unbuffered) - enable the upload of images for a fixed length of time. Specify the length of time for the uploaded recording, in seconds, minutes or hours, or for as long as the trigger is active. Finally, set the desired image frequency to the maximum (the maximum available) or to a specified frame rate. The frame rate will be the best possible, but might not be as high as specified, especially if uploading via a slow connection. Scheduled Event A Scheduled event can be activated at pre-set times, in a repeating pattern on selected weekdays. How to set up a scheduled event This example describes how to set the Video Server to send an email notification with saved images from a set time: 1. Click Add scheduled on the Event types page. 2. Enter a descriptive name for the event, e.g. Scheduled email. 3. Set the priority (High, Normal or Low). 4. Select the video source i.e. the source the event should act on, e.g. Video 2 in Storage room. 5. Set the Activation Time parameters (24h clock) when the event should be active, e.g. start on Sundays at 13.00 with a duration of 12 hours. 6. Set the When Activated... parameters i.e. set what the Video Server should do at the specified time e.g. send uploaded images to an email address. 7. Click OK to save the Event in the Event Types list. 36 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. · Include windows target specific areas within the image · Exclude windows are areas to be ignored within the Include window Once configured, the motion detection windows will appear in a list when motion detection is selected to trigger an event. See How to set up a triggered event above. 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 Video 1 for motion detection: 1. Click Motion Detection in the Event Configuration menu. 2. Select video source 1 from the menu (AXIS 241Q/QA only). 3. Click the Configure Included Windows radio button. 4. Click New. 5. Enter a descriptive name of your choice under Windows name. 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. If there are parts of the Include window that you wish to exclude, click the Configure Excluded Windows radio button and repeat steps 1-8 above. 37 Please use the online help Parameter High for descriptions of each available option. History An object that appears in the region will trigger the motion detection for a long period An object that appears in the region will trigger motion detection for only a very short period Medium to High Size Only very large objects trigger motion detection Even very small objects trigger motion detection Sensitivity Ordinary colored objects against ordinary backgrounds will trigger the motion detection Only very bright objects against a dark background will trigger motion detection Medium to High Low Default values Low Examples: · · · Avoid triggering on small objects in the image by selecting a high size level. To trigger motion detection as long as there is activity in the area, select a high history level. To only detect flashing light, low sensitivity can be selected. In other cases, a high sensitivity level is recommended. Port Status Under Event Configuration > Port Status, there is a list that shows the status for the connected inputs and outputs of the Video Server. This is for the benefit of an operator, who cannot access the System Options section. Example: If the Normal state for a push button connected to an input is set to Open circuit, as long as the button is not pushed, the state is inactive. If the button is pushed, the state of the input changes to active. 38 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. In the setup tools, go to Setup > System Options > Ports & Devices and then select either port RS-232 or RS-485 to configure. See the figure below. 3. Select Pan Tilt Zoom from the Usage drop-down list. 4. Click Upload to install a PTZ driver. (PTZ drivers are available from the Axis Web site at www.axis.com) 5. Click Port Options... to modify the port settings. The default values correspond to the values specified by the PTZ driver. 6. From System Options > Ports & Devices, select the port configured for PTZ and then select the video source to use with the device. 7. If required, click the Advanced Options button to make further settings and see the online help. 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. 39 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. Preset Positions A preset position is a pre-defined camera view than can be used to quickly move the camera to a specific location. From Preset Position Setup, use the Pan, Tilt and Zoom (PTZ) controls to steer the camera to the required position. When satisfied with the camera's position, enter a descriptive name. The camera position, iris and focus settings are then saved as a preset position. The position can be assumed at any time, by selecting the preset's name from the Preset positions drop-down list. Preset positions can be selected in Live View, from events and in Sequence mode. One position can be set as the Home position, which is readily accessible by clicking in the box beside Use current position as Home. The position's name will then have (H) added, e.g. Office Entrance (H). 40 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. Focus and Iris bars available as well, but 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. Note that this is only available if the camera is fitted with a zoom lens. · the Iris bar - adjusts the brightness of the image Clicking on the bars themselves or on the arrows at the end of the bars will move the camera to a new position. The type of movement and the location of this new position depends on the type of PTZ driver. When controlling the camera using a relative PTZ driver (see the bars in the illustration above) the new position will be relative to the previous position, e.g. left of, below, above, etc. Clicking the bar further from the center results in a larger movement. 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. Using CGI links to control PTZ devices User-defined CGI links on the Live View page can be used to issue HTTP API requests, e.g. PTZ commands. These links are configured in the Live View Layout settings, see page 11. PTZ Control Modes The PTZ device can also be controlled using click-in-image movement, which has two different types of navigation; Center and Joystick. Center mode means that when clicking in the image, the camera view will center on the absolute position that was clicked. Joystick mode moves the camera in the direction of the mouse pointer. By clicking and holding the mouse button down in the image, the PTZ device moves the camera in that direction, relative to the center of the image. The further from the center the image is clicked, the greater the movement. The camera stops moving when the button is released. Control Panel The focus and iris (image brightness) can be adjusted manually by using the control bars, or they can be set for automatic adjustment, by clicking the Auto iris and Auto focus buttons. 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 Video Server. 41 42 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. Guard Tour A guard tour moves between chosen Preset Positions, one-by-one, in a pre-determined order or randomly, and for configurable time periods. Unlike the Sequence Mode, which is a viewing application under Live View Config (see Live View Config, on page 29), the guard tour sequence will keep running after the user has logged off or closed the Web browser. Advanced Device Settings - The device settings window is for driver specific settings, so the appearance of this window can vary depending on the driver installed. Options that can be configured include: Driver Specific Settings for Video Source 1, Mechanical Limits for Moving Video Source 1, Light Control for Video Source 1, and Extended Driver Specific Settings for Video Source 1. Ctrl Panel - The Panel View Settings window contains tools for creating and saving short command buttons that are located under the Control panel. These buttons provide direct access to various built-in auxiliary commands provided by the PTZ driver and are displayed in the PTZ Panel. Limits - Define the pan, tilt, zoom and focus limits for the Video Server. Movements to the left and right, up and down can be restricted to narrow the area under surveillance. The near focus limit can be set to avoid focusing on objects too close to the camera. 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. 43 PTZ Control Queue Use the PTZ Control Queue window to enable and disable PTZ queueing. This window allows you to set up a queue for viewers wanting to access the Video Server, and limits the number of viewers and the length of time each viewer can access and control the video stream. For more information on how to set up the control queue, please see the online help. Note also that a viewer who belongs to a group (see Security, on page 45) that has a higher PTZ priority can go in front of other users in the queue and take control of the Video Server. The order of priority for taking control of the queue is listed below: 1. Administrators - An administrator may take the PTZ control regardless of who is currently first in queue. The administrator will be removed from queue 60 44 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. Guard Tour - Guard tour has control of PTZ for an indefinite period of time. It may be overridden by, Operator, Event or administrator. Guard Tour will resume when higher priority groups leaves the queue. For more information see Guard Tour, on page 42. 5. Viewer - Multiple viewers will need to wait for their turn. The viewer has 60 seconds to control PTZ until control is passed to the next viewer in queue. Note: In order to be able to identify different users in the viewer group, cookies need to be enabled on the client. AXIS 241Q/S/QA/SA - System Options 45 System Options Security User access control is enabled by default, when the administrator sets the root password on first access. New users are authorized with user names and passwords, or the administrator can choose to allow anonymous viewer login to the Live View page, as described below: Users - the user list displays the authorized users and access levels: Viewer Operator Administrator Provides the lowest level of access, which only allows the user access to the Live View page An Operator can view the Live View page, create and modify event types and adjust certain other settings. The Operator does not have access to the Systems Options configuration pages. An administrator has unrestricted access to the Setup Tools and can determine the registration of all other users. User Settings - check the corresponding checkboxes to enable: · Anonymous viewer login - allows any viewer direct access to the Live View page. · Anonymous PTZ control login - allows any viewer access to the Pan Tilt Zoom controllers on the Live View page (if Pan/Tilt/Zoom is available). IP Address Filtering Checking the Enable IP address filtering box enables the IP address filtering function. Up to 256 IP address entries may be specified (a single entry can contain multiple IP addresses). Click the Add button to add new filtered addresses. When the IP address filter is enabled, addresses added to the list are set as allowed or denied addresses. All other IP addresses not in this list will then be allowed or denied access accordingly, i.e. if the addresses in the list are allowed, then all others are denied access, and vice versa. See also the online help for more information. Note that users from IP addresses that will be allowed must also be registered with the appropriate access rights (User, Operator or Administrator). This is done from Setup > System Options > Security > Users. Referrals - to prevent unauthorized sources from including the video stream from the Video Server into external Web pages, check the Referrals box and enter the IP address or Host name of the computer that hosts the Web pages with the included video stream. Multiple IP addresses/host names can be defined and are separated by semicolons(;) 46 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. If IP address filtering is used, then the allowed referrers are automatically restricted to those allowed IP addresses. HTTPS For greater security, the Video Server can be configured to use HTTPS (Hypertext Transfer Protocol over SSL (Secure Socket Layer)). That is, all communication that would otherwise go via HTTP will instead go via an encrypted HTTPS connection. Certificate - to use HTTPS for communication with the Video Server, a Certificate must be created using one of these methods: · A self-signed certificate can be created in the Video Server, but this does not guarantee the same level of security as an official certificate. · An official certificate issued by a CA (Certificate Authority). A CA issues and manages security credentials and public keys for message encryption. 1. Click either Create self-signed certificate or Create Certificate Request and enter the required information in the provided fields 2. Click OK. 3. Create self-signed certificate generates and installs a certificate which will be displayed under Installed Certificate. Create Certificate Request generates a PEM formatted request which you copy and send to a CA for signing. When the signed certificate is returned, click Install signed certificate... to install the certificate in the Video Server. 4. Set the HTTPS Connection Policy for the administrator, Operator and Viewer to enable HTTPS connection (set to HTTP by default) Please refer to the home page of your preferred CA for information on where to send the request etc. For more information, please see the online help 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. 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. See Network > Advanced TCP/IP Settings below. 47 · Set manually - this option allows you to manually set the time and date. Date & Time Format Used in Images - specify the formats for the date and time (12h or 24h) displayed in the Live View video streams. Use the predefined formats or use your own custom date and time formats. See File for information on how to create Naming & Date/Time Formats in the online help your own file formats. Network - Basic TCP/IP Settings IP Address Configuration The IP address of the Video Server can be set automatically via DHCP, or a fixed IP address can be set manually. DHCP is enabled by default. To use a fixed IP address, you must also enter the correct subnet mask and default router. 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. Configure the options for notification of IP address change (under Services) to receive notification from the Video Server when the IP address changes. ·Alternatively, if your DHCP server can update a DNS server, you can access the Video Server by host name which is always the same, regardless of the IP address. Services Options for notification of IP address change - if the IP address for the Video Server changes, e.g. automatically by DHCP, you can choose to be notified of the change. Click Settings... and enter the required information. AXIS Internet Dynamic DNS Service - If the Video Server has been registered with the Axis Internet Dynamic DNS service and the IP address for the product changes, the service is updated to reflect the change. Check the box to enable/disable automatic updates. The domain name currently registered at the Axis Internet Dynamic DNS service for your product can at any time be removed. To do this click Settings... and follow the instructions. For more information, please refer to the online help 48 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. Use the following DNS server address - enter the desired DNS server by specifying the following: Domain name - enter the domain(s) to search for the host name used by the Video Server. Multiple domains can be separated by semicolons (;). The host name is always the first part of a Fully Qualified Domain Name, e.g. myserver is the host name in the Fully Qualified Domain Name myserver.mycompany.com where mycompany.com is the Domain name. DNS servers - enter the IP addresses of the primary and secondary DNS servers. NTP Obtain NTP server address via DHCP - use a DHCP server to automatically find an NTP server to synchronize clock of the Video Server with the other devices on the network Use the following NTP server address - use the host name or IP address of a specific NTP server for time synchronization. Host Name Configuration The Video Server can be accessed using a host name, instead of an IP address. The host name is usually the same as the assigned DNS Name. For more information, please see the online help Link-Local Address This is enabled by default and assigns the Video Server an additional IP address for use with UPnPTM. The Video Server can have both a Link-Local IP and a static/DHCP-supplied IP address at the same time - these will not affect each other. HTTP The default HTTP port number (80) can be changed to any port within the range 1024-65535. This is useful for e.g. simple port mapping. 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. Network Traffic The default setting is Auto-negotiate which means that the correct speed is automatically selected. If necessary, you can set the connection speed by selecting it from the drop-down list. Maximum bandwidth - Specify, in Mbit/s or kbit/s, the maximum bandwidth that the Video Server is allowed to use on your network. This is a useful function when connecting your Video Server to busy or heavily loaded networks. The default setting is Unlimited. Note: When using MPEG-4 as the video format, remember that setting a maximum bandwidth value here may create problems for individual video streams if the maximum value is less than the sum of the bit rates set for the video streams. 49 For more information, please see the online help SOCKS SOCKS is a networking proxy protocol. The Video Server can be configured to use a SOCKS server to reach networks on the other side of a firewall/proxy server. This functionality is useful if the Video Server is located on a local network behind a firewall, but notifications, uploads, alarms, etc., need to be sent to a destination outside the local network (e.g. to the Internet). SMTP (email) Enter the host names or addresses for your primary and secondary mail servers in the fields provided, to enable event and error email messages from the Video Server to predefined addresses, via SMTP. If the mail server requires SMTP authentication, check the box for Use authentication to log in to this server and enter the user name and password used for logging in. Several different methods of authentication are available. See the online help for more information. 50 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. If using V1 and V2c, enter the community name for read-only access to all supported SNMP objects (except the root password and other objects that require write access). Default value = public. You can also specify the community name for read/write access to all supported SNMP objects (except read-only objects). Default value = pass. If using HTTPS enter the password if it has not already been set. To set the password again, the Video Server must be reset to the factory default settings. UPnPTM The Video Server includes support for UPnPTM in Windows ME and Windows XP. UPnPTM is enabled by default. Note: UPnPTM must be installed on your workstation if running Windows XP. To do this, open the Control Panel from the Start Menu and select Add/Remove Programs. Select Add/Remove Windows Components and open the Networking Services section. Click Details and then select UPnPTM as the service to add. RTP (Multicast)/MPEG-4 These settings are the IP address, port number, and Time-To-Live value to use for the media stream(s) in multicast MPEG-4 format. Only certain IP addresses and port numbers should be used for multicast streams. For more information, please see the online help. Ports & Devices I/O Ports - the pinout, interface support and the control and monitoring functions provided by this connector are described in Unit Connectors, on page 54. RS232 - The COM port RS-232 on the AXIS 241Q/S/QA/SA supports several operational modes listed on this page. For more information, please see COM Ports RS-232 and RS-485, on page 56. RS485 - The COM ports on the AXIS 241Q/S/QA/SA supports several operational modes listed on this page. For more information, please see COM Ports RS-232 and RS-485, on page 56.