Axis Communications Security Camera 231D User Manual

AXIS 231D/232D  
Network Dome Camera  
User’s Manual  
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AXIS 231D/232D  
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Table of contents  
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AXIS 231D/232D  
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AXIS 231D/232D - AXIS 231D/232D  
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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 (i.e. door sensors, alarm bells), 20 preset positions, Sequence Mode  
and Guard Tour. With security features such as HTTPS and IP address filtering, the AXIS  
231D/232D is perfect for professional security installations.  
Up to 20 viewers can access the camera simultaneously when using Motion JPEG and  
MPEG-4 unicast. Video can be viewed in 5 resolutions (up to 4CIF), image compression is  
configurable.  
The AXIS 231D/232D has a built-in Web server, providing full access to all features  
through the use of a standard Web browser. The built-in scripting tool allows basic  
applications to be created, providing basic surveillance solutions. For advanced  
functionality, the Network Dome Camera can be integrated via the use of AXIS HTTP API.  
Axis products are supported by the industry's largest base of application software for  
managing and recording video, and integrating alarm and access control systems.  
AXIS 232D  
The AXIS 232D Network Dome Camera is a day and night camera with an IR cut filter  
which enables the camera to capture color video in light conditions down to 0.3 lux, and  
black and white video in conditions down to 0.005 lux. The IR-cut filter can be  
automatically enabled/disabled according to the current light conditions or manually  
enabled/disabled from the internal web pages.  
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AXIS 231D/232D - AXIS 231D/232D  
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Hardware Inventory  
Check the items supplied with your network dome camera against the following list:  
Item  
Title/variant  
Notes  
Network Dome Camera  
Printed user documentation  
AXIS 231D/232D  
AXIS 231D/232D Installation  
Guide  
Warranty  
Warranty document  
Connection module  
22-pol connection cable  
Connection module  
Cable  
Power/alarm connections  
24V AC, 3A power connection  
I/O connections  
Power supply  
Country specific  
Hardware Description  
Connection module  
connector  
Control button  
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 show as follows:  
Indicator  
Network  
Color  
Green  
Red  
Description  
Flashes for network activity  
Slow flash for failed firmware upgrade  
No connection  
Detail - network connector:  
Power  
Indicator  
None  
Green  
Amber  
Power  
Normal operation  
Network  
Indicator  
Flashes green/amber during upgrade.  
Control Button - Press this button to restore the factory default settings, as described in  
Resetting to Factory Default Settings, on page 43 or for installation as described in the  
provided AXIS 231D/232D Installation Guide and also available from the Axis Web site at  
The Serial Number (S/N) is located on the label on the unit.  
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AXIS 231D/232D - AXIS 231D/232D  
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Network Connector - The AXIS 231D/232D connects to the network via a standard RJ45  
connector. The AXIS 231D/232D detects the speed of the local network segment  
(10BaseT/100BaseTX Ethernet).  
Connection Module - The connection module  
provides the physical interface to 4 transistor  
outputs, 4 digital inputs and is the connection  
point for AC power. See Connection Module, on  
4 outputs  
4 inputs  
AC Power  
Connection module connector  
For instructions on how to install the AXIS 231D/232D, please refer to the AXIS  
231D/232D Installation Guide which is supplied with the product in printed format or in  
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AXIS 231D/232D - Using the Network Dome Camera  
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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.  
Accessing the AXIS 231D/232D  
1. Start a Web browser (Internet Explorer, Mozilla, Netscape Navigator).  
2. Enter the IP address or host  
name of the AXIS 231D/232D in  
the Location/Address field of  
your Web browser.  
3. Enter the user name and password set by the administrator.  
4. A video image is displayed in your Web browser.  
Note: To view streaming video in Microsoft Internet Explorer, Axis recommends you set your browser to allow the  
AXIS Media Control (AMC) to be installed on your computer. The first time an MPEG-4 video stream is  
accessed AMC also installs an MGPEG-4 decoder for viewing the video streams. As a license is required for  
each instance of the decoder, the product administrator may have disabled the installation. If your work  
environment restricts the use of additional software components, you can configure the AXIS 231D/232D  
to use a Java applet for updating images. Please refer to the online help files for more information.  
User functions in the AXIS 231D/232D may have been customized to meet the specific requirements of the  
application. Consequently, many of the examples and functions in this section may differ from those  
displayed in your Live View page.  
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AXIS 231D/232D - Using the Network Dome Camera  
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The Live View page  
If the dome camera 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.  
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  
preset positions at set intervals.  
The Action buttons trigger an action 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.  
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 JPEG format  
on your computer.  
The Live View toolbar 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).  
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 the computer  
keyboard to cancel full screen view.  
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AXIS 231D/232D - Using the Network Dome Camera  
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Pan/Tilt/Zoom controls  
The controls available for the Pan/Tilt/Zoom (PTZ) are displayed on the Live  
View by default. These are enabled/disabled for specified users by the  
administrator under System Options > Security > Users > User List.  
The Pan Tilt and Zoom bars control their respective functions in two different  
ways. Clicking anywhere on the bar's gradient allows for a 'smooth'  
adjustment of the camera's position, while clicking on the arrows at the two  
ends of the bar cause a stepped, incremental change  
• 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.  
.
Note: Setting the iris and focus manually will disable Auto iris/Auto focus.  
Each position on the bar represents a defined position in the cameras 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.  
Click-in-image  
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.  
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AXIS 231D/232D - Using the Network Dome Camera  
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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.  
Focus and Iris Controls  
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.  
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 26 and  
the online help.  
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 23.  
The Control panel  
Click the Ctrl panel button to display the control panel, where the  
following settings are available:  
Auto focus: Automatically adjusts the image focus.  
Auto iris: Automatically adjusts the amount of light  
reaching the camera and gives the best results, This also  
protects the image sensor from strong light.  
Backlight comp: Enabling backlight compensation makes  
the subject clearer if the image background is too bright,  
or if the subject is too dark.  
Navigation mode: “Center” will move the camera view to  
center on the position that was clicked.  
“Joystick” moves the camera in the direction indicated by  
a mouse click, relative to the center of the image. The fur-  
ther from the center the image is clicked, the greater the  
movement.  
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AXIS 231D/232D - Using the Network Dome Camera  
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IR cut filter - when set to off, the camera will be able to “see” infrared light, e.g.  
at night, thus making the image clearer. The image is shown in black & white  
when the IR cut filter is off. Set to Auto to automatically turn the  
filter off when the available visible light falls below the minimum requirement.  
Shortcuts - These buttons can be configured to provide direct access to various  
built-in auxiliary commands provided by the PTZ driver. See Advanced - Ctrl  
Panel on page 26.  
Pan/Tilt/Zoom Control Queue  
This means that the time the user is in control of the PTZ settings is limited and that 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 > Control Queue > PTZ Control Queue.  
For more information on using Pan/Tilt/Zoom controls, please see page 10  
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AXIS 231D/232D - Video Streams  
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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.  
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.  
Notes: • MPEG-4 is licensed technology. The AXIS 231D/232D includes one viewing client license. Installing  
additional unlicensed copies of the viewing client is prohibited. To purchase additional licenses, con-  
tact your Axis reseller.  
All clients viewing the MPEG-4 stream must use the same image settings.  
The MPEG-4 standard provides scope for a large range of different coding tools for use by  
various applications in different situations, and the AXIS 231D/232D 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, as used by e.g. QuickTime.  
Advanced Simple - sets the coding type to MPEG-4 Part 2, as used by AMC (AXIS  
Media Control)  
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.  
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AXIS 231D/232D - Video Streams  
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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. 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 alterna-  
tive 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 net-  
work. 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 simul-  
taneously 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.  
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.  
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. 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.  
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AXIS 231D/232D - Video Streams  
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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.  
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  
for 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.  
Other methods of accessing the video stream  
Video/images from the AXIS 231D/232D can also be accessed in the following ways:  
• If supported by the client, the AXIS 231D/232D 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.  
address>/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://<ip address>/mpeg4/media.amp  
• Unicast via RTSP: axrtsp://<ip address>/mpeg4/media.amp  
• Unicast via RTSP, tunneled via HTTP: axrtsphttp://<ip  
address>/mpeg4/media.amp  
• Unicast via RTSP, tunneled via HTTPS: axrtsphttps://<ip  
address>/mpeg4/media.amp  
• Multicast: axrtpm://<ip address>/mpeg4/media.amp  
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AXIS 231D/232D - Video Streams  
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Other MPEG-4 clients  
Although it may be possible to use other clients to view the MPEG-4 stream, this is not  
guaranteed by Axis.  
For some other clients, e.g. QuickTime™ the Video Object Type must be set to Simple. It  
may also be necessary to adjust the advanced MPEG-4 settings.  
To assess the video stream from e.g. QuickTime™ the following path can be used:  
rtsp://<ip address>/mpeg4/1/media.amp  
This path is for all supported methods, and the client will negotiate with the network  
camera to determine exactly which transport protocol to use.  
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AXIS 231D/232D - Configuring the Network Dome Camera  
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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 34 for more information on user access control.  
The AXIS 231D/232D is configured under Setup from a standard browser.  
Accessing the Setup Tools  
Follow the instructions below to access the Setup Tools from a Web browser.  
1. Start the Web browser and enter  
the IP address or domain name  
of the AXIS 231D/232D in the  
location/address field.  
2. The Live View page is now displayed. Click Setup to display the Setup tools.  
Overview of the Setup Tools  
Setup tools  
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AXIS 231D/232D - Configuring the Network Dome Camera  
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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  
available from each page. Click  
to access the help files.  
Image Settings  
To optimize the video images according to your requirements, modify the following  
settings under Image Appearance. Each setting is described in the online help files  
All configuration of images and overlays will affect the performance of the network  
camera, 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 in General performance  
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AXIS 231D/232D - Configuring the Network Dome Camera  
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Overlay Settings  
Use these settings to include a) an  
image as an overlay, and/or b) the  
date and time, along with text of  
your own.  
Date &  
Time  
image  
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.  
Overlay  
To upload an overlay image, see  
below.  
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.  
For a preview of the image and overlay settings before saving, click Test. When you are  
satisfied with the settings, click Save.  
Overlay Image Settings  
An overlay image is an image included in the Live View. 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. The image is now available in the Use overlay image drop-down list.  
5. Click Save.  
6. Go to Setup > Video & Image and modify the parameters under Overlay Settings.  
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AXIS 231D/232D - Configuring the Network Dome Camera  
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Overlay image requirements:  
Image Formats  
Image Size  
Windows 24-bit BMP (full color)  
The height and width of the overlay image  
in pixels must be exactly divisible by 4.  
Windows 4-bit BMP (16 colors)  
OS/2 4-bit BMP (16 colors)  
Overlay image limitations:  
If the image overlay and text overlay are larger than the video image, no overlay will be displayed. When also using a text  
overlay, this will occupy 16 pixels in height and as many in width as the video image. Please consider this when configuring  
the overlay image.  
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. the entire image is always displayed.  
The maximum overlay image size supported by the AXIS 231D/232D is the same as the maximum image resolution. See Tech-  
nical Specifications, on page 46.  
Please use the online help files  
for more information.  
Advanced  
Advanced Camera Settings -To optimize the lighting settings according to your  
requirements, modify the following settings under Lighting Conditions:  
• White balance - the white balancing system in the AXIS 231D/232D can  
automatically detect white in the image and intelligently use this as a reference  
for other colors.  
• Exposure control - this setting is used to adapt to the amount/type of light being  
used. Allow slow shutter can be enabled/disabled when the exposure control is  
set to Automatic.  
• IR cut filter (AXIS 232D only)- when the IR cut filter is set to OFF, the camera will  
be able to see’ infrared light, e.g. at night, thus making the image clearer. The  
image is shown in black & white when the IR cut filter is off.  
Note: If set to Auto, the camera 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.  
against e.g. a bright background.  
Image Settings  
• Auto focus enabled (default setting).  
• Sensitivity - sets the speed of the auto focus. High is used when focusing on  
objects that move frequently. Low improves the stability of the focus.  
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AXIS 231D/232D - Configuring the Network Dome Camera  
21  
Note: In certain situations, the white balancing system will not operate effectively. Problems may occur if the  
image contains no white color at all, or if the dominant color is not white. In these circumstances, the  
white balance may incorrectly be based on another visible color in the image, and colors may become dis-  
torted. A pale background picture with reddish or blue foreground objects is very symptomatic of this con-  
dition. In such cases it is recommended that a fixed white balance setting is selected.  
Please use the online help files  
for more information.  
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 files  
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AXIS 231D/232D - Live View Config  
Live View Config  
Layout  
22  
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 Custom Settings 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 additional features to include, such  
as buttons and links. See page 23 for  
more information.  
Customizing the  
default page  
The appearance of the  
default AXIS  
231D/232D 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  
under Custom Settings  
and follow the Upload  
Own Web Files  
instructions.  
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AXIS 231D/232D - Live View Config  
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Upload Own Web Files - Your own web files, background picture, color etc. must first be  
uploaded to the AXIS 231D/232D in order to be available for selection in the Custom  
Settings 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 drop-down lists in the lower section of the page. To  
remove a file, check the box provided next to it and then click the Remove button.  
Modify the Axis Look - In this area of the Custom Settings dialog you can use your  
uploaded files, choose colors and include logos and banners. Click the radio button Own:  
and select the file from the drop-down list.  
To use an external file located somewhere other than in the AXIS 231D/232D, click the  
radio button External: and enter the URL.  
Own Home Page- To use a previously uploaded web page as the default page, check the  
box Use own home page and select the page from the drop-down list.  
User Defined Links  
User defined links can be CGI links or web links.  
Once configured, the link(s) will appear on the  
Live View page.  
To set up a web link, select the Use as web link  
radio button, enter a descriptive name and enter  
the URL in the provided field. Click Save and 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. CAM START.  
User Defined Links  
3. Select the Use as cgi link radio button and  
enter the cgi link in the field:  
4. Check Show Custom Link 2.  
5. Enter a descriptive name, e.g. CAM STOP.  
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AXIS 231D/232D - Live View Config  
24  
6. Select the Use as cgi link radio button and enter the cgi link in the field:  
7. These links will appear in the web interface and can be used to control the dome  
camera.  
Please use the online help files  
for more information.  
For more information on the Axis HTTP API, see the Support / Developer pages on the  
Action Buttons  
These buttons can be used to manually trigger and stop an event from the Live View page.  
See Event Servers, on page 32. 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 AXIS 231D/232D 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.  
Default Viewer  
When using Microsoft Internet Explorer (IE) in Windows, select your preferred method of  
viewing moving images. The options are:  
AMC(ActiveX)- This is the best choice for fast image updating in Internet  
Explorer, but might not be possible on computers that have restriction on the  
installation of additional software.  
QuickTime - For use with MPEG-4 only, select this to use the QuickTime plug-in  
for Microsoft Internet Explorer.  
Java applet - This alternative uses a Java applet to update the images in the  
browser.  
Still Image - Displays still images only. Hit the Refresh button in your browser to  
view a new image.  
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AXIS 231D/232D - Live View Config  
25  
When using any other browser than Internet Explorer, select the appropriate method from  
the drop-down list for viewing images. The available options are similar to Internet  
Explorer except for Server Push. With this method, the camera maintains and controls an  
open HTTP connection to the browser and sends data as and when required for as long as  
required.  
Please see the online help  
for more information.  
HTML Examples  
You can add live video from your AXIS 231D/232D 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.  
By choosing the video format from the drop-down list, a new dialog appears where you  
enter the Image Type, Image size and other settings to suit your web page and click  
Update.  
External Video  
An external video source is a source originating from another Axis device on the network.  
The images from these sources can be displayed just as if they were produced by the AXIS  
232D.  
The External Video Source list shows all of the external video sources currently configured.  
The information displayed is the source's name and the path to the video stream. Up to 20  
external video sources can be configured.  
To add a new video source, click the Add button. This opens the External Video Source  
Setup dialog, which is used to make all the necessary settings.  
Sequence Mode  
The Live View page can be configured to rotate through the selected preset positions, in a  
set order or randomly.  
Select the desired PTZ preset positions and enter the time in seconds to display each  
position (up to 59 minutes). Click Save.  
The Sequence buttons will appear on the Live View page to enable the viewer  
to start and stop the sequence mode.  
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AXIS 231D/232D - Dome Configuration  
26  
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 and click on Add. 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 used in a Sequence mode  
(Live View Config>Sequence mode) and  
Event Types (Event Configuration>Event  
Types)  
One position can be set as the Home  
position, which is readily accessible by  
clicking on the Home button in both the  
Preset Position Setup window and the Live  
View window.  
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 page 25), the guard tour sequence will  
keep running after the user has logged off or closed the Web browser.  
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.  
Note: Once a limit has been saved, this position can not be exceeded by the dome camera unless the values have  
been reset and saved to a greater value first (i.e. reset the default values of the mechanical restrictions).  
Move speed sets the speed of the camera's Pan/Tilt movements. The default setting is  
maximum speed.  
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AXIS 231D/232D - Dome Configuration  
27  
Ctrl Panel - Panel view Settings is a list of configured Shortcut command buttons. Follow  
the online help for instructions to configure buttons to provide direct access to various  
built-in auxiliary commands provided by the PTZ driver and other programmable  
commands. Shortcut buttons are then displayed on the ctrl Panel.  
Control Queue  
The administrator can set up a queue for the PTZ controllers. Once set up, the PTZ Control  
Queue buttons will appear on the Live View page offering one viewer exclusive control for  
a limited amount of time. Other users will be placed in the queue.  
PTZ Control Queue on Live View page  
Please see the online help  
for more information.  
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AXIS 231D/232D - Event Configuration  
28  
Event Configuration  
This section describes how to configure the AXIS 231D/232D for alarm handling. The  
AXIS 231D/232D can be configured to perform actions when defined types of events  
occur.  
Event type  
A set of parameters describing how and when the Network Dome Camera is to perform certain actions  
Triggered Event page 29 the circumstances that start an event e.g. at a signal from an external device, such as a door switch or  
a motion sensor  
Scheduled Event page 31 the circumstances that start an event e.g. at a pre-programmed time  
Action  
what occurs when the event triggers e.g. uploaded video images to an FTP server, email notification,  
etc.  
Event Servers  
Event Servers are used for receiving uploaded image files and/or notification messages. To  
set up Event server connections in your AXIS 231D/232D, go to Setup > Event  
Configuration > Event Servers and enter the required information according to the  
selected server type.  
Server type  
FTP Server  
Purpose  
Requires information  
used for uploading saved images  
Descriptive name of your choice  
User Name and Password (to FTP server)  
Upload path e.g. images/  
Port number e.g. port 21  
Use passive mode if there is a firewall between  
the dome camera and the FTP server  
Use temporary file if your FTP server doesnt  
allow an existing file to be overwritten by a  
new file with the same name  
HTTP Server  
TCP Server  
used for uploading saved images  
used for notification messages  
Descriptive name of your choice  
URL  
User Name and Password (to HTTP server)  
Proxy address/Proxy port (if required)  
Proxy User Name and Password (if required)  
used for notification messages  
Descriptive name of your choice  
User Name and Password (to TCP server)  
Port number e.g. port 80  
For details on each setting, please refer to the online help files  
from each web page.  
which are available  
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 will take approximately 10 seconds).  
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AXIS 231D/232D - Event Configuration  
29  
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.  
Triggered Event  
A Triggered event can be activated from:  
• a switch (doorbell) connected to an input port on the Network Dome Camera  
• a Pan/Tilt/Zoom Preset position (see page 26)  
• 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 Network Dome Camera 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. Set the Respond to Trigger... parameters when the event is to be active,  
e.g. only after office hours  
5. 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.  
6. Set the When Triggered... parameters i.e. set what the Network Dome Camera is to  
do if the main door is opened e.g. upload images to an FTP server or send an email.  
7. Click OK to save the Event in the Event Types list.  
Please use the online help  
for descriptions of each available option. Image file names  
can be formatted according to specific requirements, such as time/date or type of triggered  
event. See File Naming & Date/Time Formats under Event Configuration.  
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AXIS 231D/232D - Event Configuration  
30  
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 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. The  
maximum length of time of the  
pre-/post-buffer depends on the image  
size and selected 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 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.  
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.  
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AXIS 231D/232D - Event Configuration  
31  
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. Set the Activation Time parameters  
(24h clock) when the event is to be  
active, e.g. start on Fridays at 18.00  
with a duration of 62 hours.  
5. Set the When Activated... parameters  
i.e. set what the Network Dome  
Camera is to do at the specified time  
e.g. send uploaded images to an  
email address.  
6. Click OK to save the Event in the Event Types list.  
Please use the online help files  
for descriptions of each available option.  
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AXIS 231D/232D - Event Configuration  
32  
Motion Detection  
Motion detection is used to generate an alarm whenever movement occurs (or stops) in the  
video image. A total of 10 Include and/or Exclude windows can be configured.  
Include windows target specific areas within the whole video image  
Exclude windows define areas within an Include window that should be ignored  
(areas outside Include windows are automatically ignored)  
Once configured, the motion detection windows will appear in a list of available triggers,  
for triggering events. See How to set up a triggered event, page 29.  
Note: Using the motion detection feature may decrease the cameras overall performance.  
Configuring Motion Detection  
1. Click Motion Detection in the Event Configuration menu.  
2. Click the Configure Included Windows radio button.  
3. Click New.  
4. Enter a descriptive name under Windows name.  
5. Adjust the size (drag the bottom right-hand corner) and position (click on the text  
at the top and drag to the desired position).  
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 repeat steps 1-8 above.  
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AXIS 231D/232D - Event Configuration  
33  
Please use the online help for descriptions of each available option.  
Parameter  
Object Size  
History  
Sensitivity  
High  
Only very large objects  
trigger motion detection  
An object that appears in the region will Ordinary colored objects against ordinary  
trigger the motion detection for a long  
period  
backgrounds will trigger the motion  
detection  
Low  
Even very small objects  
trigger motion detection  
An object that appears in the region will Only very bright objects against a dark  
trigger motion detection for only a very  
short period  
background will trigger motion detection  
Default values Low  
Medium to High  
Medium to High  
Note:  
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.  
Motion detection is disabled while the PTZ unit is being used.  
Port Status  
Under Event Configuration > Port Status there is a list that shows the status for the  
connected inputs and outputs of the AXIS 231D/232D for the benefit of the Operator who  
cannot access the System Options section.  
Note: If the Normal state for a push button (e.g. doorbell) connected to an input is set to Open circuit - as long  
as the button is not pushed, the state is inactive. If the push button is pushed, the state of the input  
changes to active.  
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AXIS 231D/232D - System Options  
34  
System Options  
Security  
User access control is enabled by default, the administrator sets the root password on first  
access. Other 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:  
User  
Description  
Viewer  
Operator  
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.  
Administrator  
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.  
Maximum number of simultaneous viewers -Limiting the number of viewers accessing  
the server at any one time can be useful if there are limitations on the available bandwidth.  
The maximum of 20 viewers means that subsequent viewers will not see the video stream,  
but instead a blank image.  
IP Address Filtering  
Enable IP Address Filtering- To allow or deny access to the AXIS 231D/232D Network  
Dome Camera check the box Enable IP address filtering. Once enabled, the IP addresses in  
the list will be allowed or denied access according to the choice made in the drop-down list  
Allow/Deny the following IP addresses.  
The administrator can add up to 256 IP addresses to the list (a single entry can contain  
multiple IP addresses). The users from these IP addresses need to be specified in the user  
list with the appropriate access rights (User, Operator or Administrator).  
Referrals - to prevent unauthorized sources from including the video stream from the  
AXIS 231D/232D into external Web pages, check the Referrals checkbox and enter the IP  
address or Host name of the computer that hosts the Web pages with the included video  
stream. Several IP addresses/host names can be defined and are separated by semicolons(;)  
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AXIS 231D/232D - System Options  
35  
Notes: • If the referrers 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 AXIS 231D/232D 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 AXIS 231D/232D, a Certificate  
must be created using one of the following methods:  
• A self-signed certificate can be created in the network camera, but this does not guar-  
antee 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 AXIS 231D/232D.  
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 refer to the online help files  
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 Date & Time Format Used in  
Images).  
New Server Time - Select your time zone from the drop-down list and check the daylight  
saving time changes, if desired.  
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AXIS 231D/232D - System Options  
36  
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 network camera 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.  
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 Advanced  
File Naming & Date/Time Formats in the help files  
for information on how to create  
your own file formats.  
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AXIS 231D/232D - System Options  
37  
Network - Basic TCP/IP Settings  
IP Address Configuration- the IP address of the Network Dome Camera 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 network camera when  
the IP address changes.  
Alternatively, if your DHCP server can update a DNS server, you can access the AXIS 231D/232D by host  
name which is always the same, regardless of the IP address.  
For more information, please refer to the online help files  
Services  
Options for notification of IP address change - if the IP Address for the Network Dome  
Camera is changed 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 AXIS 231D/232D Network Dome Camera  
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 files  
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AXIS 231D/232D - System Options  
38  
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 AXIS  
231D/232D. 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 Configuration  
Configuring the NTP server can be done automatically or manually. By checking the radio  
button Obtain NTP server address via DHCP the AXIS 231D/232D automatically looks up  
and uses the NTP server as provided by DHCP.  
To specify the server manually, check the radio button Use the following NTP server  
address. Enter the servers IP address or host name. Note that a DNS server must be  
specified if using a host name.  
Host Name Configuration  
The AXIS 231D/232D can be accessed using a host name, instead of an IP address. The  
host name is usually the same as the assigned DNS Name. It is always the first part of a  
Fully Qualified Domain Name and is always one word, with no period. For example,  
myserver is the host name in the Fully Qualified Domain Name myserver.mycompany.com.  
The enable dynamic DNS updates allows you to alias a dynamic IP address to a static host  
name, allowing your computer to be more easily accessed from various locations on the  
Internet. Outside users can always access your server using the associated DNS name  
regardless of the WAN IP. The DNS server used by the user and/or the DNS server  
responsible for the domain in use must support RFC2136 and allow updates from the dome  
camera.  
The TTL (Time To Live) value determines how long (in seconds) the reply from the DNS  
server should be remembered when checking that the domain name for the registered IP  
address is still valid. For more information, please see the online help  
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AXIS 231D/232D - System Options  
39  
Link-Local Address  
This is enabled by default and assigns the AXIS 231D/232D an additional IP address for  
use with UPnP. The AXIS 231D/232D 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.  
HTTPS  
If applicable, enter the HTTPS port the AXIS 231D/232D will use. The default setting (443)  
can be changed to any port within the range 1024-65535. HTTPS is used to provide  
encrypted web browsing.  
NAT traversal  
Use NAT traversal when your AXIS 231D/232D is located on an intranet (LAN) and you  
wish to make it available from a NAT router. When properly configured all HTTP traffic to  
an external port in the NAT router will be forwarded to the network camera.  
Enable/Disable - When enabled, the AXIS 232D will attempt to configure port mapping in  
a NAT router on your network, using UPnP.  
Use manually selected NAT router - Select this option to manually select a NAT router.  
Enter the IP address for the router in the field provided.  
If a router is not manually specified, the AXIS 231D/232D will automatically search for  
NAT routers on your network. If more than one router is found, the default router will be  
selected.  
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.  
For more information, please see the online help  
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.  
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AXIS 231D/232D - System Options  
40  
Maximum bandwidth - Specify, in Mbit/s or kbit/s, the maximum bandwidth that the  
network camera is allowed to use on your network. This is a useful function when  
connecting your network camera 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.  
For more information, please see the online help  
SOCKS  
SOCKS is a networking proxy protocol. The AXIS 231D/232D 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 Network Dome Camera 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)  
(Simple Mail Transfer Protocol) 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 Network Dome Camera to predefined addresses, via SMTP.  
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 pass-  
word for read or read/write access to all supported SNMP objects. The community is the  
the group of network devices using SNMP.  
• SNMP V3 - provides encryption and secure passwords. HTTPS must be enabled.  
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AXIS 231D/232D - System Options  
41  
UPnP™  
(Universal Plug and Play) The Network Dome Camera includes support for UPnPin  
Windows ME and Windows XP. UPnPis enabled by default.  
Note: UPnP must be installed on your workstation. 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 Ser-  
vices section. Click Details and then select UPnP as the service to add. Refer to the Windows help files for  
more information.  
RTP (Multicast)/MPEG-4  
These settings are the IP address, port number, and Time-To-Live value to use for the video  
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 are described in the  
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 val-  
ues. 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. Pressing this will return all of  
the network camera's settings to the factory default values (including the IP address).  
Dome Status - Click the Test button to check the camera and dome mechanics for errors.  
Contact Axis Customer Services if you receive an error message as the result of this test.  
Upgrade Server - See Upgrading the Firmware, on page 55.  
Backup - To take a backup of all of the parameters, and any user-defined scripts, click this  
button. If necessary, it is then possible to return to a previous configuration if settings are  
changed and there is unexpected behavior.  
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AXIS 231D/232D - System Options  
42  
Restore - click the Browse button to locate the saved backup file (see above) and then click  
the Restore button. The settings will be restored to the previous configuration.  
Note: Backup and Restore can only be used on the same unit running the same firmware. This feature is not  
intended for multi-configurations or for firmware upgrades.  
Support  
The Support Overview page provides valuable information on troubleshooting and  
contact information, should you require technical assistance.  
System Overview - is a quick look over the cameras status and settings. Information that  
can be found here includes the cameras Firmware version, IP address, Security, Event and  
Image settings and Recent log items. Many of the captions are also links to the proper  
Setup page to conveniently make adjustments in the cameras settings.  
Logs & Reports - when contacting Axis support, please be sure to provide a valid Server  
Report with your query.  
View Information - The Log 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.  
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AXIS 231D/232D - System Options  
43  
Advanced  
Scripting is an advanced function that provides the possibility to customize and use  
scripts. This function is a very powerful tool.  
Caution!  
Improper use may cause unexpected behavior or even cause loss of contact with the  
unit. If a script does cause problems, reset the unit to its factory default settings. A  
backup file may be of use to return the unit to its latest configuration).  
Axis strongly recommends that you do not use this function unless you fully  
understand the consequences. Note that Axis support does not provide assistance for  
problems with customized scripts.  
Plain Config - this function is for the advanced user with experience of Axis network  
camera configuration. All parameters can be set and modified from this page. Help is  
available from the standard help pages.  
About  
Third Party Software Licenses - click View licenses for a list of the licensed software  
used in the AXIS 231D/232D Network Dome Camera.  
Resetting to Factory Default Settings  
To reset the AXIS 231D/232D to the original default settings, go to the System Options >  
Maintenance web page (described in Maintenance, on page 41) or use the control button  
on the AXIS 231D/232D as described below:  
Using the Control Button  
Follow the instructions below to reset the AXIS 231D/232D to factory default settings  
using the Control Button.  
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AXIS 231D/232D - System Options  
44  
1. Switch off the AXIS 231D/232D by  
disconnecting the power.  
2. Press and hold the Control button  
while you reconnect the power.  
Control button  
3. Keep the Control button pressed  
until the Power Indicator flashes  
amber (this may take up to 15  
seconds).  
Power Indicator  
Network Indicator  
4. Release the Control button.  
5. When the Power Indicator changes  
to green (may take up to 1 minute), the process is complete and the AXIS 231D/232D  
has been reset.  
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AXIS 231D/232D - Connection Module  
45  
Connection Module  
This section describes the pinout provided by the Connection module consisting of:  
not  
used  
24V AC Power  
• 4 transistor outputs  
• 4 digital inputs  
• power and GND (ground)  
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. If the doorbell is pressed, the state changes, and the input  
will be active (shown under Event Configuration > Port Status).  
Output - e.g. an alarm device that can be activated from Output buttons from the  
Live View page or as an action to an Event Type. The output will show as active  
(under Event Configuration > Port Status if the alarm device is activated.  
Connection Module Pinout  
Function Description  
Function  
Description  
ground  
n/a  
not used  
not used  
not used  
not used  
not used  
not used  
not used  
ground  
GND  
n/a  
GND  
ground  
n/a  
Transistor Output 4  
Digital Input 4  
Transistor Output 3  
Digital Input 3  
Transistor Output 2  
Transistor Output 1  
Digital Input 2  
Digital Input 1  
See below  
See below  
See below  
See below  
See below  
See below  
See below  
See below  
n/a  
n/a  
n/a  
n/a  
PS GND  
24 VAC  
24 VAC  
24 VAC  
24 VAC  
Digital Input (1-4)- connect to GND to activate or leave floating (unconnected) to deactivate  
Transistor Output (1-4)- Max. load 100mA, max. voltage 24V DC. An open-collector NPN transistor with  
the emitter connected to pin 2 (GND). If used with an external relay, a diode must be connected in parallel  
with the load for protection against any voltage transients.  
1. Loosen the corresponding screw on top of the pin (see the table above to determine  
which pin to use).  
2. Push the cable into the connector and secure it by fastening the screw.  
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AXIS 231D/232D - Connection Module  
46  
Schematic Diagram - AXIS 231D/232D I/O connectors and power  
PS GND  
o
3.3V  
~
Switch  
Mode  
Power  
supply  
24VAC  
24VAC  
!
~
GND  
o
e.g. doorbell  
GND  
IN 1  
IN 2  
IN 3  
o
o
o
o
!
IN 4  
OUT 1  
OUT 2  
o
o
!
!
o
o
o
OUT 3  
OUT 4  
!
Note: Unmarked I/O connectors on the connection module can not be used.  
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AXIS 231D/232D - Troubleshooting  
47  
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. The current software version in your  
AXIS 231D/232D is available from the product Web pages under Setup > Basic  
Configuration.  
Updating the Firmware  
The firmware is software that determines the functionality of the AXIS 231D/232D. When  
you upgrade to the latest available firmware from the Axis Web site, your Axis product  
will receive the latest available functionality. Always read the upgrade instructions and  
release notes available with each new release, before upgrading the firmware.  
New firmware can be uploaded to the AXIS 231D/232D over the network.  
Note: Preconfigured and customized settings will be retained for use when the new firmware is running (provid-  
ing that the features are available in the new firmware) although this is not guaranteed by Axis Communi-  
cations.  
1. Save the firmware file to your computer. The latest version of the AXIS 231D/232D  
firmware is available free of charge from the Axis Web site at  
http://www.axis.com/techsup or from your local distributor.  
2. Go to Setup > System Options > Maintenance in the AXIS 231D/232D Web pages.  
3. In the Upgrade Server section and browse to the desired firmware file on your  
computer. Click Upgrade.  
Notes: After starting the process, you should always wait at least 20 minutes before restarting the AXIS  
231D/232D, even if you suspect the procedure has failed.  
Your dealer reserves the right to charge for any repair attributable to faulty updating by the user.  
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AXIS 231D/232D - Troubleshooting  
48  
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. Unix/Linux - From the command line, type the following:  
arp -s <IP address of AXIS 231D/232D> <Serial number> temp  
ping -s 408 <IP address of AXIS 231D/232D>  
Windows - From a command/DOS prompt, type the following:  
arp -s <IP address of AXIS 231D/232D> <Serial number>  
ping -l 408 -t <IP address of AXIS 231D/232D>  
Note: the ping -l command is the lower-case letter (L)  
2. If the unit does not reply within a few seconds, restart it and wait for a reply. Press  
CTRL+C to stop Ping.  
3. Open a browser and type in the AXIS 231D/232Ds IP address. In the page that appears,  
use the Browse button to select the upgrade file to use, e.g. axis231d.bin or  
axis232d.bin. Then click the Load button to restart the upgrade process.  
4. After the upgrade has completed (1-10 minutes), the unit will automatically restart and  
show a steady green on the Power LED and flashing green or amber on the Network  
LED.  
5. Reinstall the AXIS 231D/232D.  
If the emergency recovery procedure does not get the AXIS 231D/232D up and running  
Support  
If you contact Axis Customer Services, please help us help you resolve your problems  
expediently by providing a server report, log file and a brief description of the problem.  
Server Report - go to Setup > System Options > Support Overview. The server report  
contains important information about the server and its software, as well as a list of the  
current parameters.  
Log file - go to Setup > System Options > Logs & Reports. The Log file records events  
within the unit since the last restart of the system and can prove a useful diagnostic tool  
for troubleshooting.  
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AXIS 231D/232D - Troubleshooting  
49  
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 section.  
The AXIS 231D/232D is located If the IP address intended for the AXIS 231D/232D and the IP address of your computer are  
on a different subnet.  
located on different subnets, you will not be able to set the IP address. Contact your network  
administrator for an IP address on the same subnet as the computer you are performing the  
installation from.  
The IP address is being used by Disconnect the power from the AXIS 231D/232D.  
another device Run the Ping command (in a Command/DOS window, type ping and the IP address of the unit).  
If you receive: Reply from <IP address>: bytes = 32; time = 10 ms..... - this means that the IP  
address may already be in use by another device on your network. You must obtain a new IP  
address and reinstall the unit.  
If you receive: Request timed out - this means that the IP address is available for use with your  
AXIS 231D/232D. In this case, check all cabling and reinstall the unit.  
The AXIS 231D/232D cannot be accessed from a Web browser  
Cannot log in. If the AXIS 231D/232D has been configured to use HTTPS, check that the protocol in the URL  
used to access the unit is correct. You may need to type this in manually (i.e. http or https) in  
the browsers address field.  
The IP address has been changed 1) Move the AXIS 231D/232D to an isolated network or to one with no DHCP or BOOTP server.  
by DHCP  
Set the IP address again, using AXIS IP Utility or the ARP Ping command.  
2) Access the unit and disable BOOTP and DHCP in the TCP/IP settings. Return the unit to the  
main network. The unit now has a fixed IP address that will not change.  
3) As an alternative to 2), if dynamic IP address via DHCP or BOOTP is required, select the  
required service and then configure IP address change notification from the network settings.  
Return the unit to the main network. The unit will now have a dynamic IP address, but will  
notify you if the address changes.  
Other networking problems  
Test the network cable by connecting it to another network device, then Ping that device from  
your workstation. See instructions above.  
Cannot send notifications, uploads, alarms, etc, to a destination outside the local network  
Firewall protection The AXIS 231D/232D can be configured to use a SOCKS server to reach networks on the other  
side of a firewall/proxy server. See SOCKS, on page 40 for more information.  
Your AXIS 231D/232D is accessible locally, but not externally  
Firewall protection  
Check the Internet firewall with your system administrator.  
Check if you need to configure the default router settings.  
Default routers required  
The Internet site is too heavily Use a script running on your web server to relay images from the AXIS 231D/232D to the Inter-  
loaded net.  
The Power indicator is not constantly lit  
Faulty power supply  
Verify that you are using the correct power supply.  
The Network Indicator is slowly flashing red  
A firmware upgrade has been  
A rescue firmware is running in the product. First, set the IP address using AXIS IP utility or ARP  
interrupted or the firmware has and Ping,  
in some other way been dam-  
Then, from a Web browser, access the unit and upgrade the latest firmware to the product, see  
aged.  
No images are displayed in the Web interface  
Problem with AMC  
To enable the updating of images in Microsoft Internet Explorer, set your Web browser to allow  
(Internet Explorer only)  
ActiveX controls. Also, make sure that AXIS Media Control (AMC) component is installed on  
your workstation.  
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AXIS 231D/232D - Troubleshooting  
50  
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 infor-  
ited  
mation.  
Video Image Problems  
Image too dark or too light.  
Problems uploading own files  
See the help files on Video & Image Settings  
There is only limited space available for the upload of your own files. Try deleting one or more  
existing files, to free up space.  
Missing images in uploads  
Slow image update  
This can occur when trying to use a larger image buffer than is actually available. Try lowering  
the frame rate or the upload period.  
Configuring, e.g. pre-buffers, hi-res images, high frame rate etc will reduce the performance of  
the AXIS 231D/232D.  
Slow performance  
Slow performance may be caused by e.g. heavy network traffic, many users with access to unit,  
low performing client, use of features such as Event handling., Image rotation.  
Bad snapshot images  
Display incorrectly configured on In Display Properties, configure your display to show at least 65000 colors, i.e. at least 16-bit.  
your workstation  
Using only 16 or 256 colors on your display will produce dithering artifacts in the image.  
Problems with the MPEG-4 format  
Lower frame rate than expected. Check with the administrator that there is enough bandwidth available. Check also the settings  
for bit rate control, in the Video & Image > Advanced > MPEG-4 settings. Using an inappro-  
priate video object type can also affect the frame rate. See the online help for more informa-  
tion.  
Check in the AMC control panel applet (MPEG-4 tab) that video processing is not set to Decode  
only I frames.  
Lower the image resolution.  
Reduce the number of applications running on the client computer.  
No MPEG-4 displayed in the  
client.  
Check that the correct network interface is selected in the AMC control panel applet (network  
tab).  
Check that the relevant MPEG-4 connection methods are enabled in the AMC control panel  
applet (network tab).  
In the AMC control applet, select the MPEG-4 tab and click the button Set to default MPEG-4  
decoder.  
No multicast MPEG-4 displayed Check with your network administrator that the multicast addresses used by the  
in the client.  
AXIS 231D/232D are valid for your network.  
Check with your network administrator to see if there is a firewall preventing viewing.  
Multicast MPEG-4 only accessi- Check if your router supports multicasting, or if the router settings between the client and the  
ble by local clients.  
server need to be configured. The TTL (Time To Live) value may need to be increased.  
Poor rendering of MPEG-4  
images.  
Color depth set incorrectly on clients. Set to 16-bit or 32-bit color.  
Unexpected PTZ behavior  
Problem with hardware  
Go to System Options > Maintenance > Dome Status and click Test to test the camera and  
dome mechanics for errors. Contact Axis Customer Services if you receive an error message as  
the result of this test.  
For additional assistance, please contact your reseller or check the products support pages  
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AXIS 231D/232D - Technical Specifications  
51  
Technical Specifications  
Item  
Specification  
Models  
AXIS 231D 50Hz/PAL  
AXIS 231D 60Hz/NTSC  
AXIS 232D 50Hz/PAL (Automatic Day/Night functionality)  
AXIS 232D 60Hz/NTSC (Automatic Day/Night functionality)  
Image Sensor  
Lens  
• 1/4” Sony EXview HAD CCD  
Autofocus with 18x optical zoom f=4.1mm wide to 73.8mm tele. F1.4-3.0  
Focus range: 0.2m -  
(wide), 0.8m -  
(tele)  
o
o
Angle of view  
• 48 (wide end) to 2.8 (tele end)  
• 18x optical and 12x digital, total 216x  
Color:0.3 lux at 30IRE  
Zoom  
Minimum illumination  
B/W: 0.005lux at 30IRE (Only AXIS 232D)  
Shutter time  
Pan range  
• 1sec to 1/10.000sec  
o
• 360 endless  
o
o
Tilt range  
• 0 - 90  
o
Max speed  
• Pan 360 /s  
o
Tilt 360 /s  
Video compression  
Resolutions  
• Motion JPEG  
MPEG-4 Part 2(ISO/IEC 14496-2), Profiles: ASP and SP  
• 4CIF, 2CIF Expanded, 2CIF, CIF, QCIF  
Maximum 768x575 (PAL) 704x480 (NTSC)  
Minimum 176x144 (PAL) 160x120 (NTSC)  
Frame rates  
(NTSC/PAL)  
Motion JPEG: Up to 30/25 fps in 4CIF  
MPEG-4: Up to 30/25 fps in 2CIF  
Video streaming  
• Simultaneous Motion JPEG and MPEG-4  
Controllable frame rate and total bandwidth  
Constant and variable bit rate (MPEG-4)  
Image settings  
Compression levels: 11 (Motion JPEG), 23 (MPEG-4)  
Configurable brightness, sharpness, white balance, exposure control, backlight  
compensation.  
Overlay capabilities: time, date, text, custom logo or image  
De-interlacing (4CIF resolution)  
PTZ Control  
Security  
• 20 preset positions  
Guard tour  
Control queue  
• Multiple user levels with password protection  
• IP address filtering  
HTTPS encryption  
Alarm and event  
management  
Events triggered by built-in motion detection, external inputs or scheduled  
• Image uploads via FTP, email and HTTP  
Notification over TCP, email, HTTP and external outputs  
• Pre- and post-alarm buffer of 9 MB (approx. 4 min CIF video at 4 fps)  
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AXIS 231D/232D - Technical Specifications  
52  
Item  
Specification  
Connectors  
Ethernet 10BaseT/100BaseTX, RJ-45  
• 4 alarm inputs, 4 outputs  
Processors and memory  
CPU: ETRAX-100 LX 32-bit  
Video processing and compression: ARTPEC-2  
RAM: 32MB  
Flash memory - 8 MB  
Battery backed up real-time clock  
Power  
• 24V AC or DC, max 25W  
• 5 - 50oC (41 -122o F)  
Operating conditions  
Humidity: 20-80% RH (non-condensing)  
Installation, management  
and maintenance  
• Installation tool on CD and web-based configuration  
• support for configuration backup and restore  
• Support for firmware upgrades over HTTP or FTP, firmware available at  
Video access from Web  
browser  
Camera live view  
• Sequence tour capability for up to 20 Axis cameras  
Customizable HTML pages  
Complete remote control of pan, tilt and zoom  
Minimum web browsing  
requirements  
• Pentium III CPU 500 MHz or higher or equivalent AMD  
• 128 MB RAM  
AGP graphic card, DirectDraw, 32 MB RAM  
Windows: XP, 2000, NT 4.0*, ME* or 98*  
DirectX 9.0 or later  
• Internet Explorer 6.x or later  
*Motion JPEG only  
System integration  
support  
Event trigger data in video stream  
AXIS Media Control SDK  
Embedded scripting support  
Embedded operating system: Linux 2.4  
Supported protocols  
HTTP, HTTPS, SSL/TLS*, TCP, SNMPv1/2cv/v3(MIB-II) RTSP, RTP, UDP, IGMP, RTCP,  
SMTP, FTP, DHCP, UPnP, ARP, DNS, DynDNS, SOCKS. More information on protocol  
*This product includes software developed by the Open SSL Project for use in the Open SSL  
Applications  
(not included)  
AXIS Camera Station - Surveillance application for viewing, recording and  
archiving up to 25 cameras  
AXIS Camera Recorder Surveillance application for viewing and recording up to 16  
cameras  
AXIS Camera Explorer- Basic software for viewing and manual recording  
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AXIS 231D/232D - Technical Specifications  
53  
Item  
Specification  
Included Accessories  
• Power supply 24V AC  
Hard ceiling mounting bracket  
Drop ceiling mounting bracket  
CD with installation tool, Software,User manual,MPEG-4 licenses (1 encoder, 1  
decoder) and MPEG-4 decoder (Windows)  
Transparent bubble  
Quick installation guide  
Connection module for power and alarm in/out  
Accessories  
(not included)  
Videotek DBH24K Dome Housing IP65 rated  
Various mounting brackets for outdoor housing  
• Smoked bubble  
Outdoor IP66 rated power supply AXIS PS24  
• IR Illumination (Only AXIS 232D)  
Approvals - EMC  
EMC:CE:EN55022:1994+A1+A2 Class A  
EN61000-3-2:2000  
EN61000-3-3:1995+A1  
EN55024:1998+A1  
FCC part 15 Subpart B Class A  
VCCI: Class A;C-Tick AS/NZS 3548  
• ICES-003  
• Safety: UL and CSA(power supply),  
EN60950(power supply)  
EN61000-6-1:2001  
EN61000-6-2:2001  
Weight  
• 1.93kg (4.3lbs) excluding power supply  
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AXIS 231D/232D - Technical Specifications  
54  
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.  
The following factors are among the most important to consider:  
• High image resolutions and/or lower compression levels result in larger images.  
Bandwidth affected.  
• Access by large numbers of Motion JPEG and/or unicast MPEG-4 clients. Band-  
width affected.  
• Simultaneous viewing of different streams (resolution, compression, etc.) by dif-  
ferent clients. Frame rate and bandwidth affected.  
• Accessing both Motion JPEG and MPEG-4 video streams simultaneously. Frame  
rate and bandwidth affected.  
• Heavy usage of event settings affects the CPU load. Frame rate affected.  
• Heavy network utilization due to poor infrastructure. Bandwidth affected.  
• Viewing on poorly performing client PC’s lowers perceived performance. Frame  
rate affected.  
Optimizing your system  
To see the bandwidth and frame rate currently required by the video stream, the AXIS  
231D/232D provides a tool that can be used to display these values directly in the video  
image.  
To do this, special format strings are added as part  
of a text overlay. Simply add #r (average frame  
rate in fps) and/or #b (average bandwidth in Kbps)  
bandwidth in Kbps) to the overlay.  
For detailed instructions, please see the online help  
for Video & Image > Overlay Settings, and the  
help for File Naming & Date/Time Formats.  
Important!  
The figures displayed here are the values as delivered by the server. If other restrictions are  
currently in force, (e.g. bandwidth limitation) these values might not correspond to those  
actually received by the client.  
For Motion JPEG, these values will only be accurate as long as no frame rate limit has been specified.  
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AXIS 231D/232D - Technical Specifications  
55  
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.  
fps (PAL)  
fps (NTSC)  
4CIF  
2CIF expanded  
2CIF  
25  
25  
25  
25  
25  
30  
30  
30  
30  
30  
CIF  
QCIF  
Frame rates - MPEG-4  
The following test results show the frame rates in frames/second (fps) for MPEG-4 streams  
from the AXIS 231D/232D. Note that these values are guidelines only - actual values may  
vary.  
The MPEG-4 test conditions:  
Compression level = 50%  
• Video Object Type = Advanced Simple  
• GOV structure = IP*  
fps (PAL)  
fps (NTSC)  
4CIF  
2CIF expanded  
2CIF  
17  
17  
25  
25  
25  
21  
21  
30  
30  
30  
CIF  
QCIF  
*Note that setting the GOV structure to use I-frames only” will increase the frame rate.  
Bandwidth  
As there are many factors affecting bandwidth, it is very difficult to predict the required  
amounts. The settings that affect bandwidth are:  
• the image resolution  
• the image compression  
• the frame rate  
• the MPEG-4 object type  
• the MPEG-4 GOV structure  
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AXIS 231D/232D - Technical Specifications  
56  
There are also factors in the monitored scene that will affect the bandwidth. These are:  
• the amount of motion  
• the images 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. If supported on the  
network, consider also using MPEG-4 multicasting, as the bandwidth consumption will be  
much lower.  
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AXIS 231D  
57  
F
Index  
Factory Default 43  
Focus 11  
Frame rates 19, 55  
FTP Server 28  
A
Accessing the video stream 15  
Action Buttons 9  
Action buttons 24  
Active/Inactive 9, 24  
Administrator 17, 34  
Advanced TCP/IP settings 38  
Alarm 28, 45  
G
Guard Tour 26  
H
Host name 38  
HTML examples 25  
HTTP 39  
HTTP API 11, 23  
HTTP port number 39  
HTTP Server 28  
HTTPS 35  
B
Backlight Compensation 20  
Backup 41  
Bandwidth 13, 55  
Buffer Size 30  
Buffers 30  
I
Include windows 32  
IP Address Filtering 34  
IR Cut Filter 20  
IR light 12  
C
CGI links 11, 23  
Click-in-image 10  
Connection Module 45  
Constant bit rate 13  
Control Button 6, 43  
Control panel 11  
Control Queue 27  
Customize 22  
Iris 11  
L
Live View 17  
Logs & Reports 42  
M
Maximum bandwidth 40  
Motion JPEG 13  
MPEG-4 13  
MPEG-4 clients 16  
MPEG-4 protocols 14  
MPEG-4 settings 41  
Multicasting 14  
D
Date & Time 35  
Default Viewer 24  
Default viewer 24  
DNS configuration 38  
E
Emergency recovery 48  
Event 28  
Event Servers 28  
Event Types 29  
N
NAT traversal 39  
Network 37  
Network Connector 7  
New Server Time 35  
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AXIS 231D  
58  
Night Vision 20  
Snapshot 9  
NTP Configuration 38  
SNMP 40  
SOCKS 40  
Specifications 51  
Streaming MPEG-4 14  
Support 42  
O
Operator 34  
Output Buttons 9  
Output buttons 24  
Overlay Image 19  
Overlay Settings 19  
Own home page 23  
Own web files 23  
System Options 34  
T
TCP Server 28  
Time Mode 36  
Triggered Event 28, 29  
Troubleshooting 47  
P
Pan/Tilt/Zoom Controls 10  
Port Status 32, 33  
Ports & Devices 41  
Post-trigger Buffer 30  
Preset Positions 11  
Preset positions 11  
Pre-trigger Buffer 30  
PTZ commands 11, 23  
PTZ control queue 11  
PTZ Controls 25  
U
UDP 14  
Unicasting 14  
Upgrade Server 41  
User 34  
User defined links 23  
V
Pulse 9, 24  
Variable bit rate 13  
Video format 9  
Video Stream 19  
R
Recovery 48  
Referrals 34  
Restart 41  
Restore 41  
W
White Balance 20  
S
Scheduled Event 28, 31  
Security 34  
Sequence Mode 9  
Serial Number 6  
Services 37  
Setup Tools 17  
Shortcut buttons 27  
Shortcuts 12  
SMTP 40  
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AXIS 231D/232D User’s Manual Rev. 2.10  
Part no: 25788  
AXIS COMMUNICATIONS  
<Product Name> Quick User’s Guide  
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