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AXIS 250S User’s Manual

Table Of Contents

Safety Notice - Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Features and Benefits

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Applications

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

AXIS 250S Front Panel

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

AXIS 250S Rear Panel

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Hardware Inventory

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installing the AXIS 250S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Client System Requirements

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

The AXIS Media Control (Viewing Client)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Accessing the AXIS 250S from Internet Explorer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Configuring the video source and audio equipment

. . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Operating the AXIS 250S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Accessing and logging on to the AXIS 250S

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Access from a browser

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

The Live View Page

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Events and Event Types

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Upload Servers

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Notification Servers

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Audio & Video Settings

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Port Status & Devices

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Live View Layout

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

The System Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Users

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Firewall Settings

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Date & Time

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

TCP/IP Network Settings

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

SMTP (email) Network Settings

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

RTP (Multicast) Settings

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Ports & Devices

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Maintenance

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Support - Logs & Reports

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

The Factory Default Settings

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Appendix A - Other IP Setup Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

The AXIS IP Installer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Содержание 250S Blade

Страница 1: ...AXIS 250S MPEG 2 Video Server User s Manual ...

Страница 2: ...or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Shielded STP network cables must be used with this unit to ensure compliance with EMC standards USA This equipment has been tested and f...

Страница 3: ...he video source and audio equipment 15 Operating the AXIS 250S 16 Accessing and logging on to the AXIS 250S 16 Access from a browser 17 The Live View Page 17 Events and Event Types 19 Upload Servers 23 Notification Servers 24 Audio Video Settings 25 Port Status Devices 26 Live View Layout 28 The System Options 29 Users 30 Firewall Settings 31 Date Time 32 TCP IP Network Settings 33 SMTP email Netw...

Страница 4: ...e firmware 45 Appendix D Customizing The AXIS 250S 46 Modifying the File System 46 Configuration via FTP 46 Custom Web Pages 47 Appendix E Unit Connections 50 The D Sub Connector 50 The I O Terminal Blocks 50 Connecting Pan Tilt Devices 52 Controlling and Monitoring 53 Appendix F Technical Specifications 55 Appendix G Bandwidth 57 Index 59 Glossary of Terms 62 ...

Страница 5: ... RTC This battery will under normal conditions last for a minimum of 5 years The battery should not be replaced unless required If the battery does need replacing please observe the following points Caution Danger of Explosion if battery is incorrectly replaced Replace only with the same or equivalent battery as recommended by the manufacturer Dispose of used batteries according to the manufacture...

Страница 6: ... to save on bandwidth The AXIS 250S s built in support for multicasting via RTP Real Time Protocol ensures smooth delivery to multiple clients on a local network The only restrictions on the number of multicast clients are those imposed by the network in use plus the requirement of one license per client The video stream delivered by the AXIS 250S uses approximately a third of the bandwidth requir...

Страница 7: ...ble and the video quality is configurable The on board AXIS ETRAX 100 LX processor provides up to 25 30 frames second over 10 or 100 Mbit s networks Configurable GOP structure Experienced users can take advantage of the advanced video settings which allow certain modifications to the internal structure of the video stream Configurable event types Remote storage of MPEG 2 video recordings to FTP se...

Страница 8: ...put for connecting audio sources providing amplified audio signals Linux Operating System The AXIS 250S includes modified versions of the Boa Web server and Linux operating system both of which are freely distributed under the GNU General Public License as published by the Free Software Foundation This software provides a stable and reliable platform for open source development of the product In a...

Страница 9: ... and save video sequences to web FTP servers With direct access from your browser you can view live video and manage and control the AXIS 250S at any time from anywhere on the network The AXIS 250S s sophisticated features make it the ideal tool for intruder detection industrial process control public surveillance and visual security Live video monitoring on a Local Area Network by up to 3 unicast...

Страница 10: ...tal inputs and GND Used for connecting external devices typically associated with CCTV equipment See also page 50 Power Supply Connector A single socket PS K for connection of the AXIS 250S power supply Alternative power supply 7 20V DC RS 232 Serial Connector Used for connecting Pan Tilt Zoom devices etc RJ45 Network Connector Variable data communication speed 10 100 Mbit s Indicator LEDs The Pow...

Страница 11: ...country specific Please check that the type you are using is correct Item Title Variant Quantity Item Title Variants Quantity Video Server AXIS 250S MPEG 2 Video Server 1 Power Supply PS K Europe UK USA Japan Australia 1 Terminal Connectors 2 This Document AXIS 250S User s Manual v 2 0 1 Warranty Document 1 CD AXIS Network Prod uct CD 1 2 or later 1 License letter 1 Mounting kit 1 ...

Страница 12: ...ommand path Note the Serial number on the underside of the unit You need to know this to set the IP address Serial number same as MAC Ethernet address e g 00408c100086 00 40 8c 10 00 86 Connect a video source to the BNC or S Video connec tor Use a BNC to RCA con verter if your source is supplied with a phono type RCA connector The 75 Ohm selector switch should nor mally be set to ON If the unit is...

Страница 13: ...wing the video stream from the AXIS 250S MPEG 2 Video Server should meet the following hardware and software requirements Intel Pentium III 500 MHz processor or better 128 MB RAM AGP graphics card with 16 MB video memory and support for DirectDraw Ensure that the latest available driver is used Windows 2000 or Windows XP Windows XP requires Service Pack 1 Internet Explorer 5 5 or higher DirectX v ...

Страница 14: ... if required After the client is installed there will be a new icon in the Windows Control Panel Clicking on this icon opens the properties tool for the client from where various settings can be changed Please see the readme file included in the tool for more information The AXIS Media Control can be uninstalled from the Windows Control Panel The AXIS 250S is supplied with three 3 licenses for the...

Страница 15: ...ings page 5 Select the audio input you connected your equipment to 6 Enable audio set the desired audio quality and set the Mic Input Sensitivity according to your microphone Click Save and then return to the Live View page to view the video stream See also the configuration section for audio and video on page 25 Upon delivery the AXIS 250S is supplied with one pre configured Administrator user na...

Страница 16: ... on The various types allow different degrees of control and some options controls are not available at the lower levels One of the product administrator s first tasks should be to create and define the users allowed to access the server For more information on managing users see Users on page 30 An operator will have access to the server s main application page as well as certain other functions ...

Страница 17: ...er you must set your browser to allow signed ActiveX controls and install the AXIS Media Control onto your workstation This is required to view the video stream and will be performed automatically the first time the server is accessed The Live View Page The page available to all user levels when accessing the AXIS 250S MPEG 2 Video Server is known as the Live View page This page shows the server s...

Страница 18: ...selected PTZ device Other functions not shown in this illustration may also be available If PTZ controls have been disabled in the Live View layout settings they may be unavailable in the user interface Clicking anywhere on a toolbar s gradient allows for a smooth PTZ adjustment whereas click ing on the left or right arrows causes a stepped incremental change Note that the image latency inherent i...

Страница 19: ...nfiguring Event Types An event type is a set of parameters describing how and when the server will perform certain actions An event type may result in one single event or it may result in many depending on how often is triggered The most common kind of event type will trigger the upload of images to a specified destination Other actions performed by event types can include the sending of e mail th...

Страница 20: ... Respond to Trigger This setting determines when an event can be triggered The options are Always the event can be activated by the trigger see below at any time Only during time frame a trigger will only start the event during the times specified Triggers at other times will be ignored Select the days and set the period s start time and Duration The Duration may be set up to a maximum of 168 hour...

Страница 21: ...The server can trigger an event whenever a system event writes an entry to a log file There are three types of log file Information Warning or Critical Select the level that will trigger the event Note that the first two alternatives also include messages of a higher importance so alternative 1 will trigger the event type the most as it also includes Warning and Critical log messages Manual Trigge...

Страница 22: ...the quality of Live view may suffer When the event is triggered the pre trigger recording will be uploaded first The rest of the recording will then follow although prevailing conditions may result in some images being dropped Note that as the pre and post trigger buffer is always of a fixed size the more pre trigger recording is specified the less will be available for post trigger recording In t...

Страница 23: ...tup dialog The following information should then be provided for the new server Name This can be any descriptive name you like Network address Enter the IP address or host name of the server To use a host name a DNS server must be specified in the TCP IP network settings Upload path Specify the path to the directory where the uploaded images will be stored If this directory does not already exist ...

Страница 24: ...me of the script For example http server path_to_script script cgi Custom Parameters Enter your own text here See also below User name password If you need to supply a user name and password to access the HTTP server provide these here Proxy Proxy port If you must pass a proxy server to access the HTTP server provide the server s network address and the port used for access Proxy user name passwor...

Страница 25: ...ons on page 55 Color Select either Color or Black White Black White will provide sharper images at a lower bandwidth than Color Quality level This setting determines the quality of the video stream which also affects the amount of bandwidth used 1 is the lowest level and 7 the highest Physical connector Select the input the video source is connected to BNC composite video connects a standard video...

Страница 26: ...should be set according to the specifications for the con nected microphone If the correct setting is used there will be no need to adjust the Master volume level The volume slider in the web interface will suffice for raising or lowering the vol ume when viewing the video stream If you are unsure of the correct setting for your micro phone try both settings Audio Input Select the input to use for...

Страница 27: ...sition as Home by checking the box provided when that position is current This position will then be the default position when the video stream is viewed in a browser It is also possible to go directly to the Home position from any other position simply by clicking the H button To remove a preset position select it from the drop down list and click Remove A example of a preset position setup windo...

Страница 28: ...u can then change most aspects of the page Simply select the item to use and then choose whether to use the default setting or to specify your own For many of the items selecting Own will also require you to specify the location for the resource for example the location of the background picture you wish to use When you are satisfied with the new layout click Save Note Unchecking the Show Setup li...

Страница 29: ... is accessed there will be no need to log in After the Live View page opens click on the Setup link and then select the item you wish to configure from the System Options The system is configured and modified directly from these pages This can be done from any computer on the network that can access the unit Note Online help is stored internally in the AXIS 250S and is available from the pages in ...

Страница 30: ... recordings error messages system messages etc Network RTP multicast settings Enable and configure multicast IP addresses and ports Ports Devices I O Ports Enable and configure the 4 inputs and 1 output Ports Devices COM Ports RS 232 RS 485 Configure the COM ports for Generic TCP IP Generic HTTP or for Pan Tilt Zoom devices Maintenance Provides tools for restarting the server and for resetting to ...

Страница 31: ...and video etc Administrator An Administrator has unrestricted access to the whole server and can consequently determine the registration of all other users After making the settings for the new user click the OK button Editing and Deleting Users To edit or delete a user highlight the name in the User list and click the Modify or Delete button Firewall Settings The built in firewall protects your A...

Страница 32: ... Allowed IP Addresses To delete an IP address select it in the list and click the Remove button To modify an IP address select it from the list of allowed addresses make the necessary changes and then click OK Date Time Click Date and Time to define the time and date settings for your AXIS 250S either manually or automatically as described below Current Server Time Shows the current date and time ...

Страница 33: ...cess the unit you may have to reset it to the factory default settings see page 38 and then perform the installation again see page 12 Parameter Description HTTP Enabling HTTP means the server will send an HTTP GET request to the specified URL This can then easily be taken care of by a designated cgi script which registers the request by some means Custom parameters can be used by entering them in...

Страница 34: ...The host name is usually the same as the assigned DNS Name A host name 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 axis com DNS Domain Name Enter the name of the domain your AXIS 250S belongs to Primary DNS Server Enter the IP address of the primary DNS server This ...

Страница 35: ...g the Send button RTP Multicast Settings When switching to providing multicast content on the network there will be no difference in the video stream when compared to ordinary unicasting The web page containing the content from the AXIS 250S will function exactly as before and viewers will not experience any change To provide multicast broadcasts to multiple viewers various settings may need to be...

Страница 36: ...cuit in a door switch connected to an input is normally closed this means that as long as the door is closed then the state is also closed inactive When the door is opened the door sensor will be active and the input will no longer be in its normal state This is how events based on external equipment are triggered Thus in the I O port list if the Normal state for an input is set as Open but the Cu...

Страница 37: ... of the System Options provides various log files and reports which may be useful when troubleshooting or when contacting the Axis support services The logs can be used as triggers for event types The following are available The Information Log This log simply records what happens on the server It registers when events occur when the server is restarted etc The Warning Log This log will also inclu...

Страница 38: ...e front panel This option will reset ALL the parameters currently configured in the unit i e network settings events etc Follow the instructions below to reinstate the product factory default settings using the Control Button 1 Switch off the AXIS 250S by disconnecting the power supply 2 Press and hold the Factory Default Button pressed and reconnect the power 3 Keep the Factory Default Button pre...

Страница 39: ...pon the serial number printed on the underside label of the unit where the serial number typically follows the format 00 40 8c xx yy zz You need this MAC Ethernet address to complete the installation The AXIS 250S was developed for use with Microsoft Internet Explorer 5 5 or higher running on Win dows XP or 2000 Windows Millennium is not supported but the video stream may still be available Method...

Страница 40: ...2 The AXIS IP Installer Setup dialog is displayed on the screen 3 Follow the instructions as they appear Click Finish to complete the installation Setting the IP Address with the AXIS IP Installer 1 Run the AXIS IP Installer from the Start menu The AXIS IP Installer dialog is displayed on the screen 2 Restart your AXIS 250S 3 Select the serial number of your AXIS 250S in the list The serial number...

Страница 41: ...s reseller If your questions cannot be answered immediately your reseller will forward your queries through the appropriate channels to ensure a rapid response If you are connected to the Internet you can Download user documentation and firmware updates Find answers to resolved problems in the FAQ database Search by product category or phrases Report problems to Axis support staff by logging in to...

Страница 42: ...S 2 If you receive the reply destination host unreachable then the AXIS 250S is not accessible on your subnet You must obtain a new IP address and reinstall the unit 3 If this does not solve the problem disconnect the AXIS 250S from the network and run Ping again See the table below for an interpretation of the results Ping Reply Interpretation and recommendation Reply from IP address bytes 32 tim...

Страница 43: ...BOOTP and DHCP in the TCP IP settings Return the unit to the main network Note The AXIS IP Installer will not work with DHCP running on the network Other networking problems Test the network cable by connecting it to some other network device and then Pinging that device from your workstation Test the unit s network interface by connecting a local computer to the AXIS 250S using a standard network...

Страница 44: ...ove Incorrect line termination If the AXIS 250S is connected in parallel with other equipment disable the input termination by setting video termination switch to OFF Inversely when not using other equipment set the Termination dip switch to ON default setting The AXIS MPEG 2 Viewer repeatedly attempts to install A new version of the viewer is attempting to install but there is an older version st...

Страница 45: ...xis web site at www axis com or from your local distributor Updating the firmware The AXIS 250S Flash memory is updated over the network using FTP See the detailed instructions supplied with each new firmware release Important Always read the upgrade instructions available with each new release before updating the firmware Upgrading normally takes between 30 seconds and 10 minutes although it can ...

Страница 46: ...XIS 250S using a browser the configuration parameters of your unit can be modified using the File Transfer Protocol FTP FTP is supported by most operating environments and is a useful method for quickly downloading standard pre configurations to one or more servers Modification of the flash file system is NOT supported by Axis In practice this means that Axis will not answer questions relating to ...

Страница 47: ...ilure to comply with this notice may render your product unusable All files stored in the etc httpd html directory are available through the product Web server in the virtual directory local The URL to resident pages in the etc httpd html directory is http IP local filename htm Editing and Storing Your Web pages Follow the instructions below to create and save customized pages to the AXIS 250S 1 U...

Страница 48: ...lowing URL in the location Address field Example The images are now updated in your browser 8 Enter bye in the command window to exit the ftp program Note The html files can be changed at any time but remember that the available flash memory is limited http server ip address local filename html http 172 21 1 200 local index html ...

Страница 49: ...onf in the video server by using the Put command Note As an alternative to the above you might like to edit the line starting with Document Root so that it points directly to the local directory However after doing this you will then be unable to access the original Home pages so be warned 6 After making these changes you will not be able to automatically access the default index page Instead you ...

Страница 50: ...t the wiring for the pins on incoming plug connectors is not identical but instead on opposite sides in relation to each other Check the rear panel before wiring Connector Pinout Terminal Blocks A B Pin Function 1 CD 2 RXD 3 TXD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI Pin Function Description A1 GND A2 Digital Input 1 To activate connect to GND A3 Digital Input 2 To activate connect to GND A4 Digital o...

Страница 51: ...tors A B o o Mode Power Supply 3 3V z z z z z o Switch A1 o z z COM z GND PIN 5 o z z o o Infrared Sensor AXIS 250S PS K 9W o A2 o o z z o A3 A4 z z z z z z o B2 o B1 o B3 o B4 RS 485 z Device o o o oo z z z A B e g door switch z Center pin Ring External power supply o o o o z z ...

Страница 52: ...physical port the device is connected to Then select Pan Tilt Zoom as the Usage for that port 4 Now select the driver for your Pan Tilt Zoom device from the drop down list Click Save To make device specific settings click the button provided 5 You can now configure preset positions for your device from the Devices page under Port Status Devices Note Advanced users and application developers can al...

Страница 53: ...red for device triggered events For example by connecting a motion detector to a digital input it is a relatively simple procedure to trigger an event each time the detector is activated Querying the Status of Digital Inputs The status of the four supported digital inputs can be queried in exactly the same way as the relay output Simply enter the following URL to query the status of the digital in...

Страница 54: ...Unit Connections AXIS 250S User s Manual 54 The AXIS 250S then displays the status of the inputs as follows Input 1 0 Input 2 1 Input 3 0 Input 4 0 ...

Страница 55: ...tion or 75 Ohm NTSC and PAL Video Input Y C Input for S Video NTSC and PAL Audio Inputs One 3 5mm microphone input for stereo or mono microphone One 3 5mm stereo input for connecting line in stereo or mono signal Stereo microphone input High sens Max 39 0 dBu 25 mVpp Stereo microphone input Low sens Max 18 1 dBu 270 mVpp Line input Max 2 7 dBu 3 0 Vpp Supported Network protocols TCP IP HTTP FTP SM...

Страница 56: ... demonstrated by compliance with EN 55022 CISPR 22 VCCI Regulations 2001 Japan C Tick AS NZS 3548 Australia Approvals Safety EN60950 CSA Metrics Height 1 1 27mm Width 4 4 112mm Length 5 2 133mm Weight 1 52lb 0 69kg excluding Power Supply Hardware MPEG 2 compression chip ETRAX 100LX 32 bit RISC 100 MIPS CPU 16 MB RAM 4 MB FLASH PROM Power PS K included 9V DC 9W Alternative supply 7 20V DC min 7W Co...

Страница 57: ... depends on the answers to a few questions Does your application need a video stream at the highest quality Try viewing the live video stream and uploading MPEG 2 files using several different quality levels Are there other bandwidth dependent services running on the same network Will the quality level used by the AXIS 250S cause problems for these services How many clients are likely to be viewin...

Страница 58: ...to 7 high When using the levels 1 3 the bit rate can become variable The total bandwidth usage is determined by the audio and video quality level and the protocol specific contribution Using quality levels lower than 3 may reduce bandwidth usage at the expense of image quality The table below shows recommended video quality levels at various resolutions There is a limit of 3 simultaneous uploads a...

Страница 59: ...rk 33 Notification servers 24 SMTP 35 Upload servers 23 Users 30 Connecting PTZ devices 52 Connectors 50 Critical Log 37 Custom Parameters HTTP notifications 24 Customizing the server 46 D Date time settings 32 Daylight saving time 32 DHCP 33 Digital inputs 53 Digital output 50 DirectX 13 Disconnected Video Sources 18 DNS 34 D Sub Connector 50 E Email event notification 23 Ethernet address 39 Even...

Страница 60: ... Other IP setup methods 39 Output 36 Output port 22 P Pan Tilt Zoom 18 Pan Tilt Zoom devices 52 Parameter List 37 Passwords 30 Pinout I O connectors 50 Ports devices 36 Positional control 18 Pre trigger recording 22 R Replacing the battery 5 Reports 37 Resolutions 25 Respond to trigger 20 Restarting the server 37 Restoring the factory default settings 37 Retry count HTTP notifications 24 Root pass...

Страница 61: ...roubleshooting 41 U Unicasting 6 Updated firmware 45 Upload servers and paths 23 Uploading to FTP servers 21 User groups 31 Users 30 Using the Video Server 39 V Video quality level 25 57 Video resolutions 25 Video Sources 15 Viewer user group 31 Viewer license 7 Volume 26 W Warning Log 37 When triggered 21 Windows 13 ...

Страница 62: ... for measuring speeds in networks A LAN might run at 10 or 100 Mbit s NWAY A network protocol that automatically negotiates the highest possible common transmission speed between two devices Ping A small utility used for sending data packets to network resources to check that they are working and that the network is intact PPP Point to Point Protocol A method allowing one computer to connect to an...

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