AXIS 231D+/232D+ Network Dome Camera User’s Manual
About This Document Japan - This is a class A product based on the standard of the Voluntary Control Council for Interference from Information Technology Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual. This manual is intended for administrators and users of the AXIS 231D+/232D+ Network Dome Camera, and is applicable for software release 4.40.
Safety Notice - Battery Replacement The AXIS 231D+/232D+ 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.
AXIS 231D+/232D+ Table of contents AXIS 231D+/232D+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 AXIS 232D+. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Hardware Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Using the Network Dome Camera . . . . . . . . . . . . . . . . . . . . . . . . . .
AXIS 231D+/232D+ Date & Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Network - Basic TCP/IP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Network - Advanced TCP/IP Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 SOCKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AXIS 231D+/232D+ - Description AXIS 231D+/232D+ Ideal for demanding surveillance and remote monitoring applications, the AXIS 231D+/232D+ Network Dome Camera features precise pan/tilt/zoom control, superior quality Motion JPEG and MPEG-4 video, advanced event management functionality, 4 alarm inputs/4 alarm outputs (for e.g. door sensors, alarm bells), 50 preset positions, sequence modes and guard tours.
AXIS 231D+/232D+ - Description Hardware Description Connection module connector Control button Mounting slot for fixing screw Network connector with Network and Power Indicators Serial number S/N Network Connector- After completion of the startup and self test routines, the Network and Power Indicators on the network connector flashes as follows: Indicator Color Description Network Green Flashes for network activity Power Green Normal operation Amber Flashes green/amber during upgrade and wh
AXIS 231D+/232D+ - Using the Network Dome Camera Using the Network Dome Camera This document includes instructions for using and managing the AXIS 231D+/232D+. Instructions on how to install the AXIS 231D+/232D+ on your network are provided in the AXIS 231D+/232D+ Installation guide which is available on the Axis Web site. The AXIS 231D+/232D+ can be used with most standard operating systems and supports Microsoft Internet Explorer 6.x or later, Netscape 7.x or later and Mozilla 1.4 or later.
AXIS 231D+/232D+ - Using the Network Dome Camera If the AXIS 231D+/232D+ has been customized, the buttons and other items described below will be displayed accordingly on the Live View page. The following provides an overview of each button: 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.
AXIS 231D+/232D+ - Using the Network Dome Camera The AMC viewer toolbar (AXIS Media Control) is available from Microsoft Internet Explorer only and displays the following buttons: The Play/Stop buttons start and stop the live video 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).
AXIS 231D+/232D+ - Using the Network Dome Camera Pan/Tilt/Zoom Control Queue The time the user is in control of the PTZ settings is limited and a queue of users has been set up. Use the buttons to request or release control of the Pan/Tilt/Zoom controllers. The Pan/Tilt/Zoom Control Queue is set up by the administrator under: Dome Configuration > Advanced > PTZ Control Queue. For more information on using Pan/Tilt/Zoom controls, please see page 25.
AXIS 231D+/232D+ - Video Streams Video Streams The AXIS 231D+/232D+ provides several different image and video stream formats. The type to use depends on your requirements and on the properties of your network. The Live View page in the AXIS 231D+/232D+ provides access to Motion JPEG and MPEG-4 video streams, as well as to single JPEG images. Other applications and clients can also access these video streams/images directly, without going via the Live View page.
AXIS 231D+/232D+ - Video Streams MPEG-4 protocols and communication methods To deliver live streaming video over IP networks, various combinations of transport protocols and broadcast methods are employed. • RTP (Realtime 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.
AXIS 231D+/232D+ - Video Streams 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. 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.
AXIS 231D+/232D+ - Video Streams The AXIS Media Control The recommended method of accessing live video (MPEG-4 and/or Motion JPEG) from the AXIS 231D+/232D+ 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.
AXIS 231D+/232D+ - Configuring the Network Dome Camera Configuring the Network Dome Camera This section describes how to configure the AXIS 231D+/232D+ and is intended for the product administrator who has unrestricted access to all Setup tools and Operator who has access to Video & Image, Live View Config and Event Configuration. See the section on Security, on page 36 for more information on user access control. The AXIS 231D+/232D+ is configured under Setup from a standard browser.
AXIS 231D+/232D+ - Configuring the Network Dome Camera Video & Image Settings The following descriptions offer examples of the available features in the AXIS 231D+/232D+. For details of each setting, please refer to the online help files which are to access the help files. available from each page. Click Image Settings To optimize the video images according to your requirements, modify the following settings under Image Appearance.
AXIS 231D+/232D+ - Configuring the Network Dome Camera Overlay Settings Use these settings to include an image as an overlay, and/or the date and time, along with text of your own. Text overlays are all included on one line at the top or bottom of the video image. Image overlays can be placed anywhere in the video image. Date & Time Overlay image To upload an overlay image, see below.
AXIS 231D+/232D+ - Configuring the Network Dome Camera Overlay Image Settings An overlay image is an image included in the video image. This might, for example, be your own company logo. Follow these instructions to upload and use an overlay image: 1. Go to Setup > Video & Image > Overlay Image. 2. To upload the file (a logo or image) to the AXIS 231D+/232D+, click the Browse button and locate it on your computer or server. 3. Click the Upload button and follow the on-screen instructions. 4.
AXIS 231D+/232D+ - Configuring the Network Dome Camera Note that if the AXIS 232D+ is set to Auto, it will automatically switch between IR cut filter ON and OFF, according to the current lighting conditions. This is only possible when the iris is set to Auto Iris, and the exposure control is set to Automatic. • Backlight compensation - this setting is used to make the subject appear clearer, e.g. against a bright background. Image Settings • Auto focus enabled (default setting).
AXIS 231D+/232D+ - Live View Config Live View Config Layout These are the tools for deciding the layout of the Live View page. The layout can be set in 3 ways: • Use Axis look - the layout is unchanged. • Use custom settings - modify the default page with your own colors, images etc. Click the Configure button and see the following page. • Own Home Page - Upload and use your own custom made page as the default web page. Click the Configure button and see the following page.
AXIS 231D+/232D+ - Live View Config 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.
AXIS 231D+/232D+ - 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. Please use the online help files for more information. 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 25. Action Buttons These buttons can be used to manually trigger and stop an event from the Live View page.
AXIS 231D+/232D+ - Live View Config Viewer Settings Checking the Show viewer toolbar box displays the AMC toolbar under the video stream. 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.
AXIS 231D+/232D+ - Live View Config Sequence Mode Sequence Mode is a configuration that automatically displays the view from multiple, previously defined Preset Positions (see Dome Configuration, on page 28 and the online help). This is useful for e.g. security personnel viewing a surveillance system that constantly rotates through the selected preset positions, in the listed order, or randomly.
AXIS 231D+/232D+ - Live View Config PTZ controls • • • • • 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 the Focus bar - adjusts the focus 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.
AXIS 231D+/232D+ - Live View Config 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 Dome Configuration, on page 28 and the online help. PTZ Control Queue This indicates that PTZ queueing has been enabled.
AXIS 231D+/232D+ - Dome Configuration Dome Configuration 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.
AXIS 231D+/232D+ - Dome Configuration Advanced Limits Define the pan, tilt, zoom and focus limits for the AXIS 231D+/232D+. 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. Notes: Once a limit has been saved, this position can not be exceeded by the AXIS 231D+/232D+ unless the values have been reset and saved to a greater value first (i.e.
AXIS 231D+/232D+ - Event Configuration Event Configuration This section describes how to configure the AXIS 231D+/232D+ for event handling. The AXIS 231D+/232D+ can be configured to perform certain actions when certain types of events occur. Event Servers Event Servers are used, e.g. for receiving uploaded image files and/or notification messages.
AXIS 231D+/232D+ - Event Configuration Event Types An Event Type is a set of parameters describing how and when the Network Dome Camera is to perform certain actions. Example: If a door is opened, and an event has been configured to act on this, the Network Dome Camera can e.g. record and save video images to an FTP server or send a notification email to a pre-configured email address with a pre-configured message. Video images can be sent as an attachment with the email.
AXIS 231D+/232D+ - 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. 10 seonds before and after a door has been opened. Go to Event Types > Add Triggered... > When Triggered... and check the Upload images checkbox to expand the web page with the available options. Buffer size - up to 9 MB buffer.
AXIS 231D+/232D+ - Event Configuration 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 Network Dome Camera to send an email notification with saved images from at 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.
AXIS 231D+/232D+ - Event Configuration 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 231D+/232D+ can use a maximum of 10 Include/Exclude windows.
AXIS 231D+/232D+ - Event Configuration 6. 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). 7. Click Save. If there are parts of the Include window that you wish to exclude, click the Configure Excluded Windows radio button and perform steps 1-6 above. Click Save.
AXIS 231D+/232D+ - System Options System Options Security User access control is enabled by default, the administrator sets the root password on first access.
AXIS 231D+/232D+ - System Options Notes: • If the referrals feature is enabled and you wish to also allow normal access to the Live View page, the product's own IP address or host name must be added to the list of allowed referrers. • Restricting referrers has no effect on an MPEG-4 video stream. To restrict an MPEG-4 stream, IP address filtering must be enabled. • Restricting referrers is of greatest value when not using IP address filtering.
AXIS 231D+/232D+ - System Options Clients and servers in an 802.1X network may need to authenticate each other by some means. In the Axis implementation this is done with the help of digital certificates provided by a Certification Authority. These are then validated by a third-party entity, such as a RADIUS server, examples of which are Free Radius and Microsoft Internet Authentication Service. To perform the authentication, the RADIUS server uses various EAP methods/protocols, of which there are many.
AXIS 231D+/232D+ - System Options The authentication process Axis video device 3 Certificate Q: Certificate OK? A: OK 2 Network switch Q: Certificate OK? A: OK 4 RADIUS server 1 Certificate Authority (CA) Certificate Protected network 1. A CA server provides the required signed certificates. 2. The Axis video device requests access to the protected network at the network switch. The switch forwards the video device’s CA certificate to the RADIUS server, which then replies to the switch. 3.
AXIS 231D+/232D+ - System Options Date & Time Current Server Time - displays the current date and time (24h clock). The time can be displayed in 12h clock format in the Overlay Images (see below). New Server Time - Select your time zone from the drop-down list and check the daylight saving time changes, if desired. From the Time Mode section, select the preferred method to use for setting the time: • Synchronize with computer time - sets the time from the clock on your computer.
AXIS 231D+/232D+ - System Options Network - Basic TCP/IP Settings IP Address Configuration Your Axis network camera supports both IP version 4 and IP version 6. Both versions may be enabled simultaneously, and at least one version must always be enabled. When using IPv4, the IP address can be set automatically via DHCP, or a static IP address can be set manually. If IPv6 is enabled, your camera will receive an IP address according to the configuration in the network router.
AXIS 231D+/232D+ - System Options Network - Advanced TCP/IP Settings DNS Configuration DNS (Domain Name Service) provides the translation of host names to IP addresses on your network. Obtain DNS server address via DHCP - automatically use the DNS server settings provided by the DHCP server. Click the View button to see the current settings.
AXIS 231D+/232D+ - System Options 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. HTTPS The default HTTPS port number (443) can be changed to any port within the range 1024-65535. HTTPS is used to provide encrypted web browsing. NAT Traversal A broadband router allows devices on a private network (LAN) to share a single connection to the Internet.
AXIS 231D+/232D+ - System Options Alternative HTTP port - Select this option to manually define an external HTTP port. Enter the port number in the field provided. If no port is entered here a port number will automatically be selected when NAT traversal is enabled. Notes: • An alternative HTTP port can be used/be active even if NAT traversal is disabled. This is useful if e.g. your NAT router does not support UPnP and you need to manually configure port forwarding in the NAT router.
AXIS 231D+/232D+ - System Options Network - QoS (Quality of service) Quality of Service (QoS) provides the means to guarantee a certain level of a specified resource to selected traffic on a network. Quality can be defined as e.g. a maintained level of bandwidth, low latency, no packet losses, etc. The main benefits of a QoS-aware network can be summarized as: • The ability to prioritize traffic and thus allow critical flows to be served before flows with lesser priority.
AXIS 231D+/232D+ - System Options Network - SNMP The Simple Network Management Protocol (SNMP) allows remote management of network devices. Depending on the level of security required, select the version of SNMP to use. The three levels of security are: • SNMP V1 - includes no security. • SNMP V2c - uses very simple security. The community name can be specified as a password for read or read/write access to all supported SNMP objects. The community is the the group of network devices using SNMP.
AXIS 231D+/232D+ - System Options Maintenance • Restart - The unit is restarted without changing any of the settings. Use this method if the unit is not behaving as expected. • Restore - The unit is restarted and most current settings are reset to factory default values. The settings that will not be reset are as follows: • the boot protocol (DHCP or static) • the static IP address • the default router • the subnet mask • the system time • Default - The default button should be used with caution.
AXIS 231D+/232D+ - System Options View Information - The Logs report and the Parameter List also provide valuable information for troubleshooting and when contacting Axis’ support service. Configuration: Log Level for Log Files - from the drop-down list, select the level of information to be added to the Log file Log Level for Email - from the drop-down list, select the level of information to send as email and enter the destination email address.
AXIS 231D+/232D+ - System Options Using the Control Button Follow the instructions below to reset the AXIS 231D+/232D+ to factory default settings using the Control Button. 1. Switch off the AXIS 231D+/232D+ by disconnecting the power. 2. Press and hold the Control button while you reconnect the power. 3. Keep the Control button pressed until the Power Indicator flashes amber (this may take up to 15 seconds). 4. Release the Control button. Control button Power Indicator Network Indicator 5.
AXIS 231D+/232D+ - Connection Module Connection Module This section describes the pinout provided by the Connection module consisting of: not used • 4 transistor outputs • 4 digital inputs • power and GND (ground) 24V AC Power 4 transistor outputs 4 digital inputs (see table below) The inputs/outputs are used in applications for, e.g. event triggering, time lapse recording, alarm notification via email, picture storage to FTP locations. • Input - e.g. a doorbell.
AXIS 231D+/232D+ - Connection Module Schematic Diagram - AXIS 231D+/232D+ I/O connectors and power 3.3V PS GND o ~ Switch Mode z 24VAC 24VAC ~ GND o GND o e.g. doorbell z IN 1 o IN 2 o IN 3 o IN 4 o o OUT 1 z OUT 2 o z OUT 3 z o OUT 4 o Note: Unmarked I/O connectors on the connection module can not be used.
AXIS 231D+/232D+ - Troubleshooting Troubleshooting Checking the Firmware One of your first actions when troubleshooting a problem should be to check the currently installed firmware version. The latest version may contain a correction that fixes your particular problem. See the support section at http://www.axis.com/techsup for information on the latest available firmware version.
AXIS 231D+/232D+ - Troubleshooting Emergency Recovery Procedure If power or the network connection to the AXIS 231D+/232D+ is lost during the upgrade, the process will fail and the unit will become unresponsive. A flashing red Network LED indicates a failed upgrade. To recover the unit, follow the steps below. The serial number is found on the label on the product casing. 1.
AXIS 231D+/232D+ - Troubleshooting Symptoms, Possible Causes and Remedial Actions Problems setting the IP address Using ARP Ping The IP address must be set within two minutes after the power has been applied to the AXIS 231D+/232D+, restart the server and try again. Also, make sure the ping length is set to 408. See the ARP ping description in the Installation Guide. The AXIS 231D+/232D+ is located on a different subnet.
AXIS 231D+/232D+ - Troubleshooting Installation of additional ActiveX Configure yourAXIS 231D+/232D+ to use a Java applet for updating the images under component restricted or prohib- Live View Config > Layout > Default Viewer for Internet Explorer. See help files for more ited information. Video Image Problems Image too dark or too light. See the help files on Video & Image Settings Problems uploading own files There is only limited space available for the upload of your own files.
AXIS 231D+/232D+ - Technical Specifications Technical Specifications Item Specification Models • AXIS 231D+ 50 Hz/PAL • AXIS 231D+ 60 Hz/NTSC • AXIS 232D+ 50 Hz/PAL (Automatic day/night) • AXIS 232D+ 60 Hz/NTSC (Automatic day/night) Image sensor • 1/4” Sony EXview HAD CCD Lens • F1.4-3.0 • f=4.1 mm wide to 73.8 mm tele • autofocus • Focus range: 35 mm (wide) or 800 mm (tele) to infinity Angle of view • 2.8º - 48º Horizontal Zoom • 18x optical, 12x digital Minimum illumination • Color: 0.
AXIS 231D+/232D+ - Technical Specifications Item Specification Alarm and event mangagement • Events triggered by video motion detection, PTZ preset position, external inputs, or according to a schedule • Image upload over FTP,email and HTTP • Notification over TCP, email, HTTP, and external outputs • Pre- and post alarm buffer of 9 MB per channel Connectors • Ethernet 10BaseT/100BaseTX, RJ-45 • 4 alarm inputs • 4 outputs Processors and memory • CPU: ETRAX 100LX 32bit • Video processing and compressio
AXIS 231D+/232D+ - Technical Specifications Item Specification Included accessories • Power supply: 24 V AC, 1.5 A • Hard ceiling mounting bracket • Drop ceiling mounting bracket • Transparent bubble • CD with intallation tool, software, • User manual, MPEG-4 licenses (1 encoder, 1 decorder) • MPEG-4 decoder (Windows) • Quick installation guide • Connection module for power and alarm in/out Video management software (not incl.
AXIS 231D+/232D+ - Technical Specifications General performance considerations When setting up your system, it is important to consider how various settings and situations will affect performance. Some factors affect the amount of bandwidth (the bit rate) required, others can affect the frame rate, and some will affect both. If the load on the CPU reaches its maximum, this will also affect the frame rate.
AXIS 231D+/232D+ - Technical Specifications Frame rates - Motion JPEG The following test results show the frame rates in frames/second (fps) for Motion JPEG streams from the AXIS 231D+/232D+, using a compression level of 50%. Note that these values are guidelines only - actual values may vary.
AXIS 231D+/232D+ - Technical Specifications There are also factors in the monitored scene that will affect the bandwidth. These are: • the amount of motion • the image’s complexity • the lighting conditions. For MPEG-4, if there is only limited bandwidth available, and if this is more important than the image quality, using a constant bit rate (CBR) is recommended. Use a variable bit rate (VBR) if the image quality needs to be maintained at a higher level.
AXIS 231D+/232D+ - Glossary of Terms Glossary of Terms ActiveX - A standard that enables software components to interact with one another in a networked environment, regardless of the language(s) used to create them. Web browsers may come into contact with ActiveX controls, ActiveX documents, and ActiveX scripts. ActiveX controls are often downloaded and installed automatically as required. AF (Autofocus) - A system by which the camera lens automatically focuses on a selected part of the subject.
AXIS 231D+/232D+ - Glossary of Terms Compression - See Image Compression. Contrast - Defines the degree of difference between the lightest and darkest parts of an image or video stream. DC-Iris - This special type of iris is electrically controlled by the camera, to automatically regulate the amount of light allowed to enter.
AXIS 231D+/232D+ - Glossary of Terms Half-duplex - See Full-duplex. and forth. HTML (Hypertext Markup Language) - HTML is the set of "markup" symbols or codes inserted in a file intended for display in web browser. The markup tells the browser how to display the page's words and images for the user. To avoid conflicts, each IP address on any given network must be unique. An IP address can be assigned as fixed, so that it does not change, or it can be assigned dynamically (and automatically) by DHCP.
AXIS 231D+/232D+ - Glossary of Terms the Unix family. Because of its robustness and availability, Linux has won popularity in the open source community and among commercial application developers. Multicast - Bandwidth-conserving technology that reduces bandwidth usage by simultaneously delivering a single stream of information to multiple network recipients.
AXIS 231D+/232D+ - Glossary of Terms can effectively use a WAN (Wide Area Network) as a large single LAN (Local Area Network). This kind of interconnection is known as a virtual private network (VPN). Pre/post alarm images - The images from immediately before and after an alarm. These images are stored in a buffer for later retrieval. Progressive scan - Progressive scan, as opposed to interlaced video, scans the entire picture, line by line every sixteenth of a second.
AXIS 231D+/232D+ - Glossary of Terms users, such as spammers. SNMP (Simple Network Management Protocol) - SNMP forms part of the Internet Protocol suite, as defined by the Internet Engineering Task Force. The protocol can support monitoring of network-attached devices for any conditions that warrant administrative attention. Sockets - Sockets are a method for communication between a client program and a server program over a network. A socket is defined as "the endpoint in a connection.
AXIS 231D+/232D+ - Glossary of Terms the Internet. The Web server listens for requests from Web browsers and upon receiving a request for a file sends it back to the browser. The primary function of a Web server is to serve pages to other remote computers; consequently, it needs to be installed on a computer that is permanently connected to the Internet. It also controls access to the server whilst monitoring and logging server access statistics.
AXIS 231D+/232D+ 69 Index G A H Accessing the video stream 15 Action buttons 9, 23 Active/Inactive 9, 23 ActiveX controls 8 Administrator 16 Advanced TCP/IP settings 42 Alarm 34, 50 AMC 10, 15 B Backlight compensation 20 Backup 47 Bandwidth 12, 60 Buffer Size 32 Buffers 32 C CGI links 22, 27 Click-in-image 26 Connection Module 50 Constant bit rate 12 Control Button 7, 49 Customize 21 D Date & Time 40 Default viewer 23 DNS configuration 42 E Emergency recovery 53 Event 30 Event Servers 30 Event
AXIS 231D+/232D+ Pan/Tilt/Zoom Control Queue 11 Pan/Tilt/Zoom Controls 10 Pinout 46 Pinout - I/O connectors 50 Port Status 35 Ports & Devices 46 Post-trigger Buffer 32 Preset positions 27 Pre-trigger Buffer 32 PTZ commands 22, 27 PTZ control queue 27 PTZ controls 25 Pulse 9, 23 Q QuickTime 23 R Recovery 53 Referrals 36 Restart 47 Restore 47 RTP 13, 46 RTSP 13, 44 S Scheduled Event 33 Security 36 Sequence mode 9 Serial Number 7 Services 41 Setup Tools 16 SMTP 45 Snapshot 9 SNMP 46 SOCKS 44 Specifica
