Axis Communications 241SA user manual Camera tampering, Settings

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42AXIS 241QA/AXIS 241SA - Event configuration

Camera tampering

The camera tampering application generates an alarm whenever the camera is repositioned, or when the lens is covered, sprayed, or severely defocused.

You must also create an event, (see How to set up a triggered event, on page 40) for the camera to send an alarm.

Settings

The Minimum duration parameter sets the minimum tampering period, that is an alarm will not be triggered until this period has lapsed, even if the tampering conditions are otherwise met. This can help prevent false alarms for known conditions that affect the image.

If the camera lens is sprayed or covered so that the camera’s live view becomes dark, it will not be possible to distinguish this situation from other situations where the same effect is seen, such as when lighting conditions change.

When the Alarm for dark images parameter is enabled, alarms are generated for all cases where the lights are either dimmed or turned off, or if the lens is sprayed, covered, or severely defocused. If not enabled, no alarm is sent.

After you define these settings, click Save.

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Contents User’s Manual About This Document Table of contents Axis video server Product description Overview of the Axis video serverNetwork LED indicatorsFront panel Axis 241QA StatusSwitches & connectors PowerRear panel Axis 241QA/AXIS 241SA Product description Using the video server Accessing the video serverSetting the root password Please see the online help for more informationLive View AMC Audio controls Motion Jpeg Video and audio streamsVideo stream types MPEG-4How to stream MPEG-4 MPEG-4 protocols and communication methodsAxis Media Control AMC RTP/RTSP Other methods of accessing the video streamRTP+RTSP RTP/RTSP/HTTP or RTP/RTSP/HTTPSAccessing the audio streams Other MPEG-4 clientsAxis Vapix API Configuring the video server Accessing the Setup toolsVideo & image settings Image settingsImage appearance Video source settings AdvancedMjpeg Quad stream settingsOverlay/Mask settings Overlay/Mask typeOverlay image limitations Upload and use an overlay imageOverlay image requirements Image Formats Image SizeUse a Privacy Mask Audio Audio SettingsEnable Audio Audio ChannelsAudio Input Advanced Audio Settings Noise canceller threshold value Noise canceller attenuationAudio Output Axis 241QA/AXIS 241SA Audio Live View Config LayoutCustomizing the default Upload Own Web FilesDefault Viewer Default Live View VideoDefault Video Format Viewer SettingsHtml Examples User-defined LinksCheck Show Custom Link Sequence Mode External VideoInstalling PTZ devices Pan Tilt ZoomPTZ configuration Preset positionsPTZ controls Using CGI links to control PTZ devices PTZ control modesControl panel Preset positions Guard tourAdvanced PTZ control queue Axis 241QA/AXIS 241SA Pan Tilt Zoom Event configuration Event serversTriggered Event How to set up a triggered eventEvent types Click Add triggered on the Event typesScheduled event How to set up a scheduled eventPre-trigger and post-trigger buffers Click Add scheduled on the Event typesSettings Camera tamperingHow to configure Motion Detection Motion detectionPort status Object SizeUsers System optionsSecurity IP Address FilterStream, IP address filtering must be enabled HttpsAxis 241QA/AXIS 241SA System options Date & time RadiusCA servers Network Basic TCP/IP settings IP Address ConfigurationServices NTP Configuration Network Advanced TCP/IP settingsDNS configuration Host Name ConfigurationHttp FTPRtsp QoS QoS SettingsSocks Smtp emailSnmp RTP / MPEG-4Maintenance Ports & devicesSupport Configuration Resetting to the factory default settings Using the Control ButtonUnit connectors D-Sub connectorPin I/O terminal connector Pin Function DescriptionSchematic diagram I/O terminal connector COM ports RS-232 and RS-485Axis 241QA/AXIS 241SA Unit connectors Troubleshooting Checking the firmwareUpgrading the firmware Emergency recovery procedure Be accessed from a web browser Alarms, etc, to a destination outside the local networkLit Snapshot images Video Image ProblemsNo images displayed in the Web interface Only I framesAudio Axis 241QA only Audio volume too low/highAudio Advanced Settings Poor audio qualityTechnical specifications ModelsConnectors Video access from WebApplications not General performance considerations Optimizing your systemFrame rates Motion Jpeg Frame rates MPEG-4Bandwidth Active Speaker a speaker with a built-in power amplifier GlossaryCompression See Image Compression De-interlacing See interlacingEncoder See Video encoder Fixed iris See AutoirisHalf-duplex See Full-duplex Megapixel See Pixel Axis 241QA/AXIS 241SA Glossary SSL/TSL Identity of the server Video camera See Network camera and Cctv video cameraAn I-VOP is a complete image frame Http API IndexAction Http API requests Http port number Http serverRTP 14 Rtsp 14 Video streams 13, 15

241SA specifications

Axis Communications, a leader in network video solutions, offers a diverse range of high-performance cameras designed to meet various security needs. One of its notable models is the Axis 241SA video encoder. This device embodies the company's commitment to providing advanced surveillance technology with cutting-edge features.

The Axis 241SA is an ideal solution for organizations looking to enhance their security infrastructure by integrating analog cameras into a digital network. With its ability to support multiple video formats, this video encoder enables operators to convert traditional analog video signals into digital streams efficiently. The device supports both Motion JPEG and MPEG-4 video compression, providing flexibility in terms of image quality and bandwidth use. Users can easily adjust the settings to maximize storage efficiency and optimize network performance.

One of the standout characteristics of the Axis 241SA is its robust support for Power over Ethernet (PoE). This feature simplifies installation by allowing the device to receive power and transmit video data through a single Ethernet cable, reducing the need for additional power sources and streamlining setup processes. The encoder can accommodate four analog video inputs, allowing multiple cameras to be connected, making it a cost-effective solution for small to medium-sized installations.

Furthermore, the Axis 241SA incorporates advanced security features to safeguard video streams and ensure data integrity. The device supports HTTPS encryption and password protection, preventing unauthorized access to camera feeds and configuration settings. This level of security is crucial in today’s digital landscape where cyber threats are prevalent.

The device also comes equipped with a user-friendly web interface, simplifying the operation and configuration process for users. Compatible with various video management software (VMS) solutions, the Axis 241SA allows for seamless integration into existing security systems, enhancing overall monitoring capabilities.

In summary, the Axis Communications 241SA video encoder is a powerful and versatile tool for transitioning from analog to digital surveillance systems. With its support for multiple video formats, PoE capability, strong security measures, and user-friendly interface, the Axis 241SA meets the demands of modern security environments while providing peace of mind to users. It presents an invaluable asset for businesses and organizations aiming to bolster their security infrastructure without compromising on performance or efficiency.
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