EV6250A Series Speed Dome IP Camera User’s Manual Ver. 6.
About This Guide Model l EV6250A Before Using the EV6250A Speed Dome IP Camera ü Check PC requirement ü Check OS platform requirement ü Install EtroStation™ 3.0 software before you start using the video server. ü Read special and important precautionary information. ü Basic knowledge of network setup and configuration will be helpful. Icon Descriptions Notes: This icon represents a tip for operation. Caution: This icon stands for an action that probably impairs the operation.
TABLE OF CONTENTS 1. PRODUCT OVERVIEW ......................................................................5 Package Checklist .................................................................................... 5 Look ...................................................................................................... 6 Connector............................................................................................... 6 Operational Instructions .....................................................
OSD .................................................................................................... 38 6. WEB INTERFACE SETTINGS - EXPERT............................................. 39 Port ..................................................................................................... 39 DDNS .................................................................................................. 39 SMTP/FTP.............................................................................................
1. PRODUCT OVERVIEW EV6250A support dual streams simultaneously. Combination options include: Stream 1 Stream 2 H.264 M-JPEG H.264 MPEG-4 H.264 H.264 M-JPEG MPEG-4 M-JPEG H.264 M-JPEG M-JPEG MPEG-4 H.264 MPEG-4 M-JPEG MPEG-4 MPEG-4 Note: If users assign MPEG-4 for both Stream1 and 2, the image will be unable to reach real-time performance. M-JPEG for both Stream 1 and 2 leads to the same result. This is system limitation.
l LOOK Indoor Housing Outdoor Housing l l l l l l l l l l Connectors 1 Connect Power Adapter 2 Audio Input 3 Audio Output 4 Video Output 5 RJ-45 Ethernet Connector 6 Digital Input & Digital Output
l OPERATIONAL INSTRUCTIONS 1. Follow the operational instructions for correct use. 2. Please don’t place the product on unstable desk or bracket. 3. Please avoid any liquid permeate inside of the machine in case damage the product. 4. Before wiring, please follow all electronic safety standards, and using the original attached power supply adapter. 5. Do not let the camera aim at sun or other lighting objects no matter the camera is operating or not, otherwise it might damage the CCD camera permanently.
2. SETTING AND INSTALLATION Note: l Connect EV6250A to your network by using a standard Cat-5 cable. l Connect the video output of your camera with video in of video server, using standard 75O coaxial cable with BNC type connector. l Connect speaker and active microphone to Audio In / Out. l Product CD Product CD in the package contains: ü EtroStation™ 3.0 NVR management software o 16CH Live View / Recording / 4CH Playback ü EtroStation™ Pro 3.
l Connect I/O Users have to make pin-to-pin correctly to enable this function. l Enable Audio Function n The video flicker may occur when enabling or disenabling audio in and audio out. The situation normally lasts for a second. l Easy Installation Step 1: Use the special screw driver to take off the burglar-proof screw. Prepare the screws to mounting on the suitable place. Caution: Please be sure to follow all the steps of the instructions. Wrong installation may damage the product.
3. Complete the assembly - Pole Mount Bracket: 1. Fixed the bracket on the rear of power box 2. The assembly will be done after the stainless ring is hooped 3. Pendant Mount Bracket: 4. Fixed the iron tube at the above cover of power box 5.
l Outdoor Housing installation The installed spot must and can hold the product firmly, in case the image shaken while the camera operates. 1. Put the cable tube into the power box, and screw it 2. Fixing power box on the wall 3. Before assembling housing and bracket, please paste on the water-repellent tapes. Then revolve the housing from left to right for fixing 4.
5. Using hexagon screw driver to fix the housing and bracket 6. Install combo cable, unscrew the bottom screw first 7.
Connect power connector with J12 8. Connect video connector with J13 Hook up the safety buckle, and screw the two screws to fix the power box l Camera Installation 1. Aim the camera plug to the bottom socket to connecting 2.
3. After the camera is installed, please turn the camera and fixing the two side screws. 4. Finally cover up the smoked cover to accomplish the installation. Please be sure hands are clean while cover up, or it may dirty the cover. It’s recommended to tear off the protect membrane after installation is finished, or wear on gloves l Indoor Housing installation 1.
2. Before install inner housing, please hook the safety lock of outer housing on the fixing socket of inner housing, in case of installation accidents 3. Please fix the three screws on the side before install the camera 4.
3. USING EV6250A FOR THE FIRST TIME l Before You Install Software ü Please check PC OS platform. Microsoft Windows 2000 or Windows XP is capable of running EtroStation™ 3.0 software. ü PLEASE read EtroStation™ 3.0 user’s manual before installation. l Language Support ü English l Install EtroStation™ 3.0 User can easily find the specific IP camera on the network via this software. l Browser for Live Viewing and Video Settings Microsoft IE browser version 6 or higher is recommended.
l Network Domain Alter the IP address of the PC to the same domain of default value (192.168.1.2). Users may alter the IP address of the IP camera to the same of PC via EtroScan™ . Please refer to page 45 to check detailed information. l Use EtroScan™ The software allows users easily and quickly find the specific IP camera on the network. Run EtroStation™ 3.0 setup and install the two applications. The following is the brief instruction: Select EtroScan™ from the start menu.
Press Scan to automatically find online Video Server or Full Function of Video Server on the network domain Press Scan button to check the IP and MAC address list. Press Clear Table button and press Scan again to refresh. You will find the list of IP and MAC address listed. To indentify your IP camera you can flip over the IP camera and check the label for MAC address on the bottom side. Note: Please pay attention that a completed RMA form must contain the serial number of the product.
l Change Network Setting via EtroScan™ Double click on a specific IP address; the setting page will pop up. Users may alter some basic network parameters in this page. Double click Be sure to press APPLY to enable the new setting Within 10 seconds, the dialog box would disappear. This indicates that the new settings are deployed. After typing in the new IP address, user may close the setting page and wait for 45 seconds. It takes 45 seconds to restart the system.
4. ACCESS IP CAMERA l Browser Ø Open an IE browser Ø Type in the IP address of video server that you found via EtroSacn™ . For example: 192.168.1.2 (default IP address) Ø A popup login dialog box will automatically display. Ø Initial username and password (case-sensitive): Login: root Password: pass Press OK button to access to the live viewing web page.
l Initial Username & Password à Administrator Ø Default ID / Password = root / pass Ø The ID of administrator can not be changed or deleted; only the password is changeable. Ø Administrator has the authority to view and control system settings. After logging in with root / pass as administrator, user may see the live viewing page. 1. There is a toggle button on the top right corner of the live viewing page. 2.
The sequence is date (mm-dd-yyyy), time, and camera name. (camera name is optionally displayed） l Control Panel Settings 1. Video / Resolution The following table shows common resolutions: 2. Resolution CIF QCIF D1 NTSC 352X240 176X120 720X480 PAL 352X288 176X144 720X576 Video rates / Bit rates The bit rate values ranges from 64k to 4M and are related with bandwidth.
3. Choose a specific value and the setting will be enabled within few seconds. The image on the screen might briefly pause. 4. Camera information (Please refer to the picture) The button is on the lower right corner of the living viewing image, showing video information such as frame rate (fps), model name, and resolution. FPS Name Resolution 5. Digital Output (Please refer to the picture) To enable this function, user has to connect the PIN via the Mini DIN cable.
5. WEB INTERFACE SETTINGS – BASIC EV6250A built-in web interface provides the access to further settings. Enable the top-right side icon in the live viewing page to access to the further settings. This button also works as a switch between configuration and live viewing page. (Please refer to the picture in p.16) l Status 1. Status is the first item of the setting options. 2.
hardware, firmware information, and other related information. l Network There are three types of network connection: STATIC, DYNAMIC and, PPPoE. à Static IP 1. IP Address Please confirm with the network administrator. 2. Subnet Mask / Gateway / Default DNS Please confirm with the network administrator. 3. Be sure to press “OK” to save the new setting. 4. Reboot will be required and automatically triggered after pressing OK. Please w ait for a moment to the count down timer stop.
Note: Always use Etro Scan™ to find the MAC addresses after reboot and double check the IP address. Make sure the IP address is correct. If IP was changed in web configuration, you cannot return to initial login page after reboot. à Dynamic IP 1. If DHCP server is on LAN and you want to allocate Dynamic IP address, use DHCP. 2. Press “OK” button. 3. Reboot will be required and automatically triggered after pressing OK. 4. Please w ait for a moment to the count down timer stop.
double check the IP address. Make sure the IP address is correct. If IP was changed in web configuration, you cannot return to initial login page after reboot. à PPPoE Settings 1. If the network supports PPPoE like xDSL, this option is available. 2. Require ISP (Internet Service Provider) to provide ID/Password. 3. User ID / Password 4. PPPoE user ID / Password 5. Service Name: Service name of ISP 6. MTU 。Maximum transmission unit of data 7.
Caution: Be sure press “OK” after you have changed the setting in a particular setting page. After few seconds, a confirmation dialog box will pop up to indicate that the setting has been updated. To return to the same page, please press “OK”. l Video Stream 1 à Video Settings 1. Stream Port: Stream 1 port value setting 2. Stream Protocol: Selectable options: TCP/UDP (RTP) / User can decide whether to enable multicast function or not (If UDP is selected). 3.
4. Resolution: Selectable Options: D1/CIF /QCIF 5. Bit rate Type: There are two selectable options: constant bit rates (CBR) and variable bit rates (VBR), providing the flexibility in choosing bandwidth. 6. Constant bit rates (CBR): 4M / 3M / 2M / 1.5M / 1M / 750K / 500K / 384K / 256K / 128K / 64K Note: 1M is recommended when using H.264; 1.5M is recommended when using MPEG-4. Note: When mosaic or fragment occurs in the image, users may lower the frame rate or assign another level of image quality. 7.
Maximum number of clients depends on the available network bandwidth and the required video quality. The available range is 0 ~ 10. Stream 2 Caution: You have to enable Stream 2 in this section to see the option on the control panel setting page. The setting in stream 1 and 2 are the same. ; Administrator can decide whether to enable this stream or not and see the live video in “Live Viewing” page.
Users may make some fine adjustments to the video quality. The following is the instruction: 1. BRIGHTNESS: Adjust the brightness of the image. 2. CONTRAST: Adjust the variation in the intensity of an image. 3. SATURATION: Adjust the intensity of color in the image. à Video Preview l This function makes user easily check the possible change of altering parameters of setting. l All parameter will be effected when value is changed Caution: Do not forget to press “OK” button to save the current settings.
EV6250A is capable of handling all basic and standard events. à Events handled by EV6250A 1. Digital Input 2. Motion Detection 3. Periodic Timer 4. Network Loss 5. Power Loss à Actions supported by EV6250A 1. Digital Output 2.
1. Digital Input 2. Motion Detection 3. Periodic Timer 4. Network Loss 5. Power Loss à Events Triggered 1. Digital Input: Two options: “Normal Open” (N.O.
(N.C.) 2. Motion Detection: If a motion is detected in the defined areas, an event will be triggered. 3. Periodic Timer: An event will be triggered following the schedule of the pre-defined time interval. For example, if the time interval is set 60-second, the event will be triggered once per 60-second. 4. Network Loss: When network loss is detected, an event will be triggered. 5. Power Loss: When system power loss is detected, and event will be triggered.
1. Press the “Client PC time” check box, Date and time setting can be synchronized with PC directly. Press “OK” after you have the setting done. 2. Time zone can be chosen from the two listed time servers. 3. After selecting, the time server can be set to synchronize the time of video server. Press “OK” after you have changed settings. 4. If you want to manually input time server, choose “Other” then you can find a manually input edit box. Key in your preferred time server and press “OK”.
l OSD Note: The OSD and Camera Info. displays are independent. If “Enable” checkbox is checked, the channel name will be shown on OSD. If not, this information will be shown on the Camera Info. only.
6. WEB INTERFACE SETTINGS - EXPERT l Port Caution: The default port value is 80. Users may change the value. Please pay attention that if the port is changed (e.g. 80) users have to put: 80 in the end of the IP address. The value of WEB and AV port can be changed. 1. Web: The default value of Web Port is 80. 2. Configuration Port: The default port is 1150. (Contacting with your NVR vendor to check this feature is recommended.
The function is used to map an IP address with the host name. If the IP camera is set a dynamic IP address, the host name must be provided by DDNS (Dynamic Domain Name Service). à IPv4 DDNS Ø Check “Enable” and select one from the two options. Ø Registrations on DDNS service sites are required for the two options. Ø Please go to dyndns.org for registration and further information.
Video Server / Full Function of Video Server support e-mail notification & FTP upload à E-mail – SMTP Setting Enter the port number, user name, password, and server name information of the SMTP server. If you’d like to receive the attached snapshots, please enable the appropriate check box. Authentication is not a mandatory requirement by SMTP servers. In some situations, the required information includes the SMTP server name and e-mail address only. Note: Users may define the following parameters.
à FTP Setting Please fill in the address of remote FTP server, port number, user name, and password. Caution: Users may assign the port value (e.g.30). Please pay attention that if the port is changed (e.g.80), users have to put: 80 in the end of the IP address to facilitate the operation. l Trigger Setup Caution: The anode of Mini DIN has to be connected to the anode of the device to facilitate the operation. So does the cathode.
Four different types of EVENT can be triggered à Digital Input (DI) There are two selectable options: Normal Open (N.O.) and Normal Close (N.C.) Users m ay choose the proper option depending on the input type. Be sure to press “OK” to save the setting.
Timer interval can be set in terms of seconds. An event will be triggered according to the schedule. à Motion Detection Type a. There are two selectable options: “always” and “schedule” mode. b. Users can define the schedule as assigning “schedule”. Detection Area: Check the check box to enable Motion Detection; administrator can self-configure 1~3 detection areas.
draw area will be changed into a specific color.
Sensitivity value: Defines the sensitivity of motion detection. The range of the value is -10 to 10. Note: higher sensitivity value, higher sensitivity level l Pre/Post Setting This functio n is designed for setting the stream format type and time duration of Pre/Post buffer. Format options include “AVI” （for video file） and “JPEG ”(for picture file).
Administrator can create new user accounts. Login as the administrator and create user accounts by clicking on “Add”. Administrator can assign different combinations of authorities for each user account. The options include video settings, and digital out. Administrator may alter the combination of authorities anytime. There are limits to the length of user’s name and password. If the length exceeds the limit, a dialog box will pop out for notification.
The account name” root” of administrator can not be changed or deleted. Only the password is changeable. Confirmation will be requested as changing the password. à Account Limitations Administrator can add up to 5 users and assign different authorities to each individual account. à Guest Permissions Guest account can be turned ON/OFF anytime. l Security The default setting of security is LOW.
1. Definition of Each Security Level a. HIGH: ONLY LAN connections are permitted. b. MEDIUM: Video and audio connections from any location and settings from LAN are permitted. c. LOW: All connections from any location are permitted. 2. Power LED a. Turn On: As the default setting, power LED will always be on during the operation. b. Turn Off: Config power LED as off during operation.
l Maintenance à Language Ø The default setting is English. Ø Language options include: Traditional Chinese and English. à Firmware Update Warning: The power supply must be steady as upgrading the firmware. The power failure during the upgrade process results in serious damage to the machine. Users can download the firmware file from Etrovision official website. Choose the specific one and press upload. When uploading is finished, reboot will be requested and automatically triggered.
You can backup the current configuration setting and save it as a file.
7. FACTORY DEFAULT While the confirmation dialog box appearing, press OK button to load default setting and do reboot. You will see the countdown timer running. The login page will appear as finishing. Please login with root/pass.
8. REBOOT Press Reboot and one dialog box will pop up. Press OK on the dialog box; the reboot countdown timer will start running. After finishing, the login page will appear. Please login with the correct account name and password.
9. LOGOUT Press logout to return to the login page. The login page should appear within few seconds.
10. ETROLINK™ CONFIG PORT – FIRST TIME EXPERIENCE EtroLink™ is designed for quick configuration or factory default. There is EtroLink™ config port, a special USB port, on each product of Etrovision. Unplug USB cable Connect the IP camera and PC via mini USB cable through EtroLink™ config port. Please pay attention that if the IP camera is powered on, EtroLink™ will not be operant. After finishing the configuration or factory default, please unplug the USB cable.
1. Windows XP (all editions) - auto run. 2. Windows 2000 (all editions) – manually run is required. 3. Windows 98 (SE) – manually run is required. Note: (Generic USB mass storage class driver (Microsoft) will be requested – if you plan to use EtroLink™ based device recovery on Windows 98, please prepare one in advance) l NO Software installation Required There is no requirement of installation or setup of any software on Windows XP/2000 platforms.
Please press OK. 5. Double click on the Config Wizard. You will see the following page: The password is required. If you didn’t change the default password, please type in pass. Then press the login button.
following dialog box will pop up if you don’t type in the proper password. If you’d like to setup DDNS, please fill in the required information.
Return to Network page to set other network setting. Please press next to go to detailed configuratio n setting page. The following page is an example of STATIC network configuration page. After pressing next, the setting will be saved. You can press finish or continue to do other setting.
11. TROUBLESHOOTING l What If Quickconfig does not Auto run? In some situations, Quick Config application may not auto run after connecting to EtroLink™ via the mini USB cable. In that situation, you may open the disk drive page (the following is the example image). The icon starts with EV should appear. Open the folder named “autorun”. This folder contains a HTML executable file named “autorun”. Double click the file to enable the operation.
12. SPECIFICATIONS Models EV6250A-BI EV6250A-CI EV6250A-DI EV6250A-BO EV6250A-CO EV6250A-DO Image Sensor SONY 1/4” EX-VIEW CCD Resolution Lens 480 TV Lines f=3.5mm(wide) to f=4.1mm(wide) to 73.8mm(tele), F1.4 to F3.0 Min Illumination 1.0 lx Day & Night 91mm(tele), F1.6 to F3.8 0.01 lx N/A 0.
13. APPENDIX A ActiveX ActiveX is Microsoft software component technology, mainly used by Microsoft Windows. This protocol facilitates the sharing of information between different components in a networked environment. AGC (Automatic Gain Control) This function automatically adjusts the amount of increase depending on the strength of the incoming signal. AI (Auto Iris) A very useful approach to control the strength of lights.
Automatic White Balance This function automatically adjusts the color to achieve the “color balance”. This function will give the reference of “true white” to show the camera what the color white looks like. B Bandwidth Measured in bps, this unit refers to the transmission capacity of telecommunications links. BLC (Back Light Compensation) This function automatically adds more details to darker areas of an image when bright lights, for example shining from behind, obscuring.
camera into an electrical charge, which is then converted into an electronic image. There are two types of CCD: frame transfer and interline transfer. CCTV (Closed Circuit Television) CCTV represents for the use of video cameras to transmit the signal. In CCTV system, all devices are linked mostly and directly via cables. The system is different from broadcast television where the signal is openly transmitted. CCTV system is widely used in video surveillance, involving analog cameras and recorders.
CGI is the abbreviation of Common Gateway Interface. It is a standard protocol for interfacing external applications with information servers, such as HTTP or Web servers. A CGI program can be written in any language that allows it to be executed on the system, such as: C/C++, PERL, Visual Basic etc. Compression It is a process of encoding information while reducing the size of digital signal. D D1 D1 is the so-called full resolution for TV specification.
processing power from the CPU, allowing it to focus on other applications and computing tasks. Dynamic IP address This is a temporary numeric identification assigned to a node in a TCP/IP network. DHCP server w ill assign an IP address as computers and devices in the network turned on. This is the rotation of IP addresses such that every time a user logs onto the Internet, their IP address changes.
independent agency of United States. It regulates international communications by setting rates, controlling broadcast licensing, and testing electronic equipment to RF (radio frequency) transmission and related standards. Firewall A firewall is a software or hardware application installed on computer to block unauthorized access to the computer. It is essential in protecting private information in current days.
matrix switcher. Pronounced as ‘gooey’, this is the interface between the computer and the matrix switcher. Gain Gain is the amplification factor and the extent to which an analog amplifier boosts the strength of a signal. The decibel (dB) is the most common unit for measuring the gain of an amplifier. Gateway The required hardware and software connect two disparate network environments. GIF GIF is the abbreviation of Graphics Interchange Format.
HTTP HTTP is the abbreviation of HyperText Transfer Protocol. This is the protocol utilized to transmit and request information from WWW servers to browsers, either online or over networks. Hub There are lots of definitions of hub for its comprehensive applications. In data communications, a hub is a place of convergence where data arrives from one or more directions and is forwarded out in one or more o ther directions. Networks apply devices called hubs to connect multiple computers together into a LAN.
Internet. When we request a HTML page or send a e-mail, the computer translates this into its IP address. The TCP/IP protocol then uses it for routing the data packets to their destinations. IP Camera (or Network Camera) IP Camera is also known as Network Camera. The transmission of data is over an IP network. As receiving the signal, the camera digitizes the images, compresses them, and then delivers them over the network.
K L LAN LAN is the abbreviation of Local Area Network. A LAN is a high-speed network connecting computers that share a common communications line or wireless link. LED LED is the abbreviation of Light Emitting Device. An LED creates an infrared light frequency when stimulated by an electric charge. Lens This device is responsible for focusing the image on the CCD. Most of lens offer adjustable focal length and aperture.
MPEG MPEG is the acronym of Moving Picture Experts Group. This is a working group of ISO/IEC developing “international standards for compression, decompression, processing, and coded representation of moving pictures, audio and their combination.” MPEG-4 MPEG4 is an ISO/IEC standard set by MPEG working group. MPEG-4 provides full compatibility in digital television, Interactive graphics applications (synthetic content), and Interactive multimedia (World Wide Web, distribution of and access to content).
A pixel is one of the many tiny, tile-like picture elements (dots) that make up a digital image. Megapixel is equal to one million pixels. N Network Camera Also known as an IP Camera, Network Camera is a stand-alone camera and has access to live viewing, motion detection via a standard web-browser over a computer network or Internet.
Pixel (Picture Element) A pixel is one of the many tiny, tile-like picture elements (dots) that make up a digital image. PoE The abbreviation of Power over Ethernet refers to a method of power supply of an IP camera via Cat-5 Ethernet cable over a physically wired LAN network. Power supply Most security cameras utilize 24V AC or 12V DC power supplies. A power supply is usually plugged into a regular electrical outlet or part of a centralized power supply.
Ping A TCP/IP tool used to test whether a particular host is reachable. Ping can also be used for the self-test of Network Interface Card (NIC). Q QCIF QCIF is the acronym of Quarter common intermediate format, which is one of the common video signal standards. QCIF is one quarter of CIF, with the resolution of 144 × 176 pixels. Quad Utilizing digital video, this piece of equipment displays signals from four surveillance cameras on one monitor.
sophisticated way, presenting better image quality and less distortion than other part of the image. Router A router is the device help facilitating the exchange of packets among LAN or WAN networks. A router is often a part of the network switch. RS232 (also known as RS-232) This is the communication standard developed by EIA (Electronic Industries Asso ciation) for regulating the interface between data communication and data processing devices.
Resolution Resolution is a measure of picture clarity and sharpness. The presentation of resolution is showed by number of pixels. There is a direct ration between resolution and number of pixels. RJ45 RJ-45 is the abbreviation of Registered Jack-45. It is an eight-wire connector, commonly applied for connecting computers on LAN over the Ethernet. S Scanning As used in video surveillance, scanning is the technology of panning across the horizontal field of view.
Synchronizatio n This term refers to the process of keeping one operation matching with another. In IP Surveillance, this term is mostly used as mentioning the frame formation in multi systems is started simultaneously. Simplex This is a type of multiplexer that allows simultaneous recording (to the tape) and live, full screen displaying. SNMP (Simple Network Management Protocol) SNMP is short for Simple Network Management Protocol. This protocol is widely used in network monitoring and control.
delivered. Telnet Telnet is a network protocol functions as a simple method of accessing another network device, such as a computer. Using this protocol, users log on as a regular user with whatever privileges you may have been granted for specific applications and data residing on that computer. TVL (TV Lines) TVL is the measurement of analog video resolution. Topology Topology is widely used in various fields.
computer (allowing a user to shut down w/out losing data or continue for a specific time period) for a short period of time during a power failure. URL URL is the abbreviation of Uniform Resource Locator. It is the Internet, global address that required by a software browser to find the Internet resource or document on World Wide Web (WWW). UTP UTP stands for Unshielded Twisted Pair. It is a common type of twisted pair wiring used to transmit video signals across distances.
The “compression” of video helps reduce bit rates, bandwidth, and smaller file size and facilitates the Internet transmission. Video intercom Used at door entryways, this system utilizes audio and video for communication or movement control of people. Video server This device enables an analog camera to be converted into an IP one, digitalizing the analog signals into digital images and transferring via an Internet Protocol Network such as Intranet, LAN, or ,ISDN connection.
This device can define activity in a scene by analyzing the differences in the image. The common way is triggering an alarm after detecting the unusual movement. W WAN This term stands for Wide Area Network. It is a communications network spanning a large geographical area, connecting multiple metro area networks (MAN) or local area networks (LAN). The Internet is a WAN. White balance This function helps adjust the color to ensure a more realistic picture.
WEP is short for Wireless Equivalent Privacy. This is a wireless security protocol, specified in the IEEE 802.11b standard, which is designed to provide a wireless local area network (WLAN) with a level of security and privacy comparable to that usually expected of a wired LAN.
