Surveillance Video Camera

In the past, the idea of having wireless video surveillance camera in homes was not easy for the common people due to its high expense. However, today, due to the technological advancements and easy availability, the prices of all electronic gadgets have reduced a lot including the wireless video surveillance cameras. And as more people have become aware and concerned about the safety and security of their family and property, there has been an increase in the demand of surveillance systems for home security.

The main purposes of installing surveillance video cameras are:

The first part of the camera works as a detector and they are used to prevent the thieves Another part is the recording device, which keeps all the records and helps to catch the trespassers

The surveillance video systems are installed in the home because of various reasons. People generally use the camera to let the people know, that they are being watched. It can help to prevent the home from burglars. The other option is to place the camera in such a position that people cannot detect it. It helps you to identify the true behavior of people.

Many people are now also using fake cameras to protect their house. The fake cameras look like the real ones and can help to scare away the intruders. These cost much less than the original cameras! But the demerit of using this type of cameras is that if the burglars don't notice the cameras and breaks into your home; you would not have any record to detect the thief.

Types of surveillance video cameras include:

Motion detector cameras - This type of video cameras are mainly used in the areas that receive little light like the outdoor gates, and courtyards. Wireless pan or tilt cameras - The wireless security cameras are generally installed with a power link application. The camera has high quality image resolution. The wireless camera stays active even in the dark and can cover large areas because of its pan or tilt facility. Wireless built in cameras - It is enriched with features like internal power link module, and internal GPRS communicator and reports about the events to your cell phone or to your web address. It also has a huge battery back up, which remains active up to 72 hours.

Now that you have the essential information about a wireless surveillance camera, buy and install one according to your needs.

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Portable GPS Glossary: 15+ Functions You Need to Know

Just imagine harnessing the power of more than 24 satellites circling the globe to provide you with accurate positioning and navigational information with your portable GPS navigational device.

A GPS or a Global Positioning System device in a portable package is a valuable tool packed with a wide variety of functions that could get you to your intended destination by road of feet using the best and safest routes available.

The technology behind GPS systems is more than ten years but it has never waned in popularity. In fact, more and more users are getting a taste of what this system can give them with more affordable portable GPS units. As more and more features are being developed and added to portable GPS units available in the market, you can get more functionality in your unit that goes beyond its core function as a navigational device and they keep on adding more!

Portable GPS Functions You Need to Know

Whether you're a portable GPS device user or an entrepreneur planning to do business reselling these navigational devices, it would be to your added advantage if you familiarize yourself with the various functions and features available.

Knowing these functions can help you decide which GPS unit to buy for your own use, or boost your market viability by highlighting the best of what your portable GPS units can do.

Waypoint

Waypoints can be considered as landmarks set by the GPS navigation software. You can also mark certain spots along a route to help you remember a specific location such as a fork in the road, a building, a camp site, or any other location which you find useful for future visits to the place. You can name these waypoints according to your preference and add it to existing point already stored in your GPS unit.

Junction Imaging

Some commercial portable GPS software offering junction imaging functions wherein a picture or image is used to represent a turnoff and help you decide whether to take the turn or not.

Lane Assist

Similar to junction imaging, lane assists features offer image or graphical representation to assist drivers in deciding which lane to take.

Point of Interest

Commercial and proprietary GPS software can have digitally recorded items called Point of Interest that drivers or travelers may find interesting. These locations can also indicate areas that can be useful while traveling such as gas stations, toilets, hospitals, malls and tourist attractions.

Route

One of the most basic navigational functions of most if not all GPS software is the route, which tells you the fastest, shortest and safest route to get to your intended destination. These route points are either pre-programmed into the GPS software, or assigned by the user itself.

Intelligent Route Planning

More advanced commercial GPS software and devices offer intelligent route planning features that can help you plan the best route from your starting point and multiple intended destinations. This feature considers sites that you'll pass by, turnoffs, runarounds, and actual road conditions along your route.

Voice Guidance

Voice guidance is like your GPS unit literally talking to you and tell you where you are right at that very moment. The human-like voice can tell you important waypoints or points of interest according to your route plan to get you to your destination as fast and accurate as possible without the need for you to glance at your GPS screen while driving.

3D Views

Advanced GPS software make use of at least four visible satellites to give you a three-dimensional view of your GPS position fix. Information that you'll receive not only includes your coordinates but your elevation as well.

Bluetooth Connectivity

Some GPS devices offer wireless connectivity using Bluetooth technology to enable you to make hands-free phone calls on enabled GPS units.

Wi-Fi Connectivity

Portable GPS devices can help you connect and get online access through its wi-fi connectivity features.

eBook Reader

Your GPS reader can go beyond its core function as a navigational device by doubling as an eBook reader, allowing you to read books and documents stored in pdf format.

Media Player

Bored while driving or hiking? Your portable GPS device can help you pass the time through its media player function that allows you to play, view and listen to multimedia files stored in various formats such as MP4, WMA or AVI to name a few.

ActiveSynch

Windows-based GPS software can have mobile data synchronization between your portable GPS device and your pc, allowing you to keep your tasks, calendars, emails and other data in sync.

Trackback

Garmin GPS devices have a proprietary feature called Trackback that converts your track log into a route which you can use to go back to your starting position with accuracy.

GoTo Function

The GoTo function in portable GPS units tells your unit to show you how to get to another location aside from where you are right now. It can instruct the unit to show you directions on how to get somewhere which you have gone before by indicating a particular time or a particular landmark. This can be activated by pushing a single key or pointing at a touchscreen icon.

Rearview Camera Inputs

Some portable GPS units have video inputs where an external camera can be installed. With accompanying software that allows the GPS display to switch from its GPS user interface and instead display the camera's output feeds, you can use this as a rearview camera while driving. It's like having a third eye behind your back, giving you added safety on the road as you try to locate your intended destination.

There are a whole lot more of features offered with new and upcoming portable GPS navigation systems in the market. If you're planning to purchase a new one, or planning to get your entrepreneurial juices running in this industry, then it would be a wise move to learn all the ropes and be familiarized with these GPS functions and features.


Get the portable GPS units that are guaranteed to perform visit Chinavasion.com or paste this link into your browser: /in-car-gps/

access point vs router

VOIP Solutions Architecture - Technology - Communication

Voice service is critical to the operation of the business, so no one wants to implement a technology that will compromise call quality or reliability in any way. Thus, the selection of an enterprise VoIP solutions Architecture is a major decision.

On the other hand, the cost savings and value-added functionality available with VoIP makes it a compelling investment. So VoIP buyers must select a VoIP Solutions Architecture that maximizes business benefits while minimizing potential technology ownership headaches.The design of IP voice solutions should address the following service-level requirements: Open and standards-based VoIP solutions architecture : Enable the IP voice solutions with the flexibility of a comprehensive solution portfolio that interoperates with existing TDM technologies and systems, while protecting existing investment.

The design of IP voice solutions should address the following service-level requirements: Open and standards-based VoIP solutions architecture : Enable the IP voice solutions with the flexibility of a comprehensive solution portfolio that interoperates with existing TDM technologies and systems, while protecting existing investment.

Extensibility : The VoIP solutions Architecture should have the ability to have additional functionality added or to modify existing functionality without impacting the existing functionality.

Scalability : The VoIP solutions architecture will provide the ability to quickly and easily extend the network infrastructure and application to handle increased contact loads or much more agents or new components and applications.

Reusability : Addresses the ease with any functional components or concepts within the VoIP solutions architecture can be reused by other applications.

Maintainability : The VoIP solutions architecture should have the ability to deal with technical issues in existing functionality without impacting other subsystem or components of the VoIP voice environment.

Performance : The VoIP solutions architecture should have good performance across all solutions. For example, good Quality of Service (QoS) mechanisms ensure high voice quality through tight control of delay, loss, and jitter.

Manageability : The VoIP solutions Architecture must be easy to be used and managed by most the administrator and technical staff. Also, choose good network management products to provide network administration, operations, troubleshooting, configuring, fault monitoring, and element management.

Additional difficulty in making a purchase decision is the broad range of vendor offering VoIP solutions Architecture on the market.

These offerings can be segmented into two categories: low-end VoIP gateways and high-end router-based solutions.

Low-end gateways VoIP solutions Architecture is tempting because of their low upfront cost. However, they lack many important capabilities that are essential for VoIP to work as required in real-world network environments and to fulfill the requirements of the business. Their poor survivability, lack of intelligent call routing functions and inadequate integration with existing enterprise communications resources limit their usefulness and can lead to problems in provisioning VoIP services as required.

High-end router-based VoIP solutions Architecture products come with a larger price tag and, at first glance, offer more sophisticated VoIP functionality. Unfortunately, they often come with further price premiums in the form of PBX modification and add-on modules for support of H.323 and/or SIP. And, despite their price and apparent robustness, their capabilities may still come up short in many ways - forcing users to change their dialing habits, limiting the efficiency with which available bandwidth can be used, and exhibiting the same lack of survivability as their low-end counterparts.

To learn more about VoIP and broadband telephony, please visit VoIP reviews.

access point vs router

How to Configure a DHCP Relay on a Cisco Catalyst 4500 Switch? - Computers - Networks

Dynamic Host Configuration Protocol (DHCP) is a protocol for assigning dynamic IP addresses to hosts on a local network. DHCP also delivers TCP/IP configuration parameters such as the subnet mask and the default router. DHCP simplifies network administration because the DHCP server keeps track of IP addresses rather than requiring an administrator to manage the task manually.

For DHCP to operate correctly, all host computers need to contact the DHCP server. Routers by default do not forward host broadcasts beyond their own subnet. A DHCP relay agent forwards DHCP packets over routers that do not support the forwarding of these types of packets. A DHCP relay agent is a type of routing protocol that enables DHCP hosts to obtain IP addresses from a DHCP server on a different subnet.

A DHCP relay agent is usually run on a router. The Cisco Catalyst 4500 series switches have routing capabilities. Therefore a Cisco Catalyst 4500 is the appropriate place to run a DHCP relay agent.

How to Configure a DHCP Relay on a Cisco Catalyst 4500 Switch1. Log in to the Cisco device using an interactive text-oriented communications facility via a virtual terminal application, such as SSH or Telnet. When a login has succeeded, a read-only command-line prompt appears, such as "Switch>."

2. Type the command "enable" at the "Switch>" prompt. Type the password into the switch. The command-line changes to a enabled prompt, such as "Switch#."

3. Type the command "config terminal" at the "Switch#" prompt, and press the "Return" key. The "config terminal" command modifies the prompt to "Router (config) #."

4. Type the command "interface FastEthernet " at the "Router(config)#" prompt, and press the "Return" key. This command modifies the prompt to "Router(config-if)#."

5. Type the command "ip helper-address " at the "Router(config-if)#" prompt. This command enables the forwarding of DHCP packets to a different subnet.

6. Hold down the "Control" and "Z" keys simultaneously at the "Router(config-if)#" prompt. This takes the router back to the "Router#" prompt. The DHCP relay agent is now configured to support forwarding of DHCP packets.

Notes: Info Help You Know DHCP in DetailsDynamic Host Configuration Protocol works in a client/server mode. DHCP enables clients on an IP network to obtain or lease IP address or configuration from a DHCP server. This reduces workload when managing a large network. DHCP protocol is described in the RFC 2131.

Most modern operating system includes DHCP in their primary settings, these includes windows OS, Novell NetWare, Sun Solaris, Linux and Mac OS. The clients' requests for addressing configuration from a DHCP network server, the network server manages the assignment of IP addresses and must be obliged to answer to any IP configuration requests from clients.

However, network routers, switches and servers need to have a static IP addresses, DHCP is not intended for the configuration of these types of hosts. Cisco routers use a Cisco IOS features known as Cisco Easy IP Lease. This offers an optional but full-featured DHCP server. Easy IP leases address for 24hrs by default, it is most useful in homes and small offices where users can take the advantages of DHCP and NAT without having an NT or UNIX serverThe DHCP sever uses User Datagram Protocol (UTP) as it's transport protocol to send message to the client on port 68, while the client uses port 67 to send messages to the server.

DHCP severs can offer other information, this include, DNS server addresses, WINS server addresses and domain names. In most DHCP servers, administrators are allowed to define clients MAC addresses, which the server automatically assigns same IP, address each time.

Most administrators prefer to work with Network server that offers DHCP services. These types of network are scalable and easy to manage.

access point vs router

entry the A+ Practice Exams - Advertising

79. You will be the network administrator for any firm.The network contains one server and 40 shopper computer systems. The server runs Windows Tiny Home business Server (SBS) 2003 R2 Top quality Version and Microsoft Online Security and Acceleration (ISA) Server 2004. All remote computer systems operate Windows XP Services Pack 2 (SP2).The network is linked to the Internet by working with a non-Plug and Play ADSL router that supports Network Tackle Translation (NAT).You install a customized app about the server. Customers link for the app by utilizing TCP port 53535. The applying data is transmitted over the network in very clear text.You should configure the network to ensure that consumers can access the custom made application more than the net. All application data sent more than the internet must be encrypted.What must you do?A. Around the server, operate the Make Remote Link Disk Wizard. Include the users towards the Net Consumers group. Within the router, ahead por t 139 towards the server.B. In the server, operate the Configure Remote Access Wizard and allow VPN access. Include the customers to the Cell Consumers group. Within the router, ahead port 1723 to the server.Do. Around the server, create a custom made publishing rule that requires authentication. Include the customers to the Remote Operators group. Around the router, forward port 53535 for the server.D. Within the server, operate the Configure E-mail and World wide web Link Wizard (CEICW) and enable VPN accessibility. Add the consumers to the Remote Net Workplace Users group. Around the router, forward ports 4125 and 53535 to the server.Solution: B

eighty. You are the network consultant for a firm.The network consists of 1 server. The server runs Windows Little Organization Server (SBS) 2003 Standard Edition.The network is linked for the Net by using an ADSL router that supports Network Address Translation (NAT).You need to deliver remote users safe accessibility to a SBS Windows SharePoint Services (WSS) Website from the world wide web. You have to prevent remote users from accessing other inside resources.What should certainly you do?A. To the server, run the Remote Access Configuration Wizard and allow VPN access. Around the router, ahead port 1723 to the server.B. About the server, run the Connect for the Online wizard and enable Net accessibility to CompanyWeb. Within the router, ahead port 444 to the server.Do. On the server run the Connect to the Online wizard and enable Web accessibility towards the WWW Root Website. For the router, ahead port 443 for the server.D. Around the server, open the WSS web sites ad ministration Internet webpage. Around the Configure Link to Portal Internet site webpage, specify the external name from the site. Over the router, forward port 80 towards the server.Answer: B

access point vs router

Accessing Theta Brainwaves and Other Brainwave Patterns

Have you ever imagined that against your will, your brain is ruled by numerous brainwave patterns? You're right. Most times, it is the brainwaves which dominate you, determining your every action.

The nervous system is accessing theta brainwaves but also stays busy enhancing numerous other allocated clusters of brainwaves as well. This in turn relates to the various positions of your mind. This directly affects different states of mood such as relaxation, anxiousness and severe depression.

Let's take a more precise look at the reaction of each of the brainwaves that are known and their specific characteristics.

Beta is one group of brainwaves which is usually responsible for your normal state of mind; with tossing and turning awareness of the surroundings. The easiest example is when you are actively driving, walking, or speaking; you are actually dominated by Beta. Other accompanied emotions such as, anxiousness, and exhaustion- results from any high beta activities.

Secondly, when your mind rests calmly; which is also associated with concentration on a particular aspect, it is said that you are under Alpha. In addition, this state is defined as the most incredible state, permitting the brain to draw in new information.

Following this, when your brain is engaged in utmost relaxation is when the role of Theta brainwaves comes in. Similarly, when you are dreaming, or involved with any meditation, the theta waves are in motion.

Lastly, Delta being the less active wave pattern among all other brainwaves comes into play when you are mostly unconscious, such as a deep sleep.

You cannot deny the fact, that all throughout the day your nervous system is engaged with all the above-mentioned states in some way or the other. However, with the program unveiled by the Quantum Mind Power, accessing theta brainwaves or any other brainwaves patterns is not a big deal any more. Just imagine dominating the brainwaves the way you want!

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High speed Internet access through broadband connection

The fascinating and enchanting world of internet has over the years become more captivating with new technology replacing old and new providers revolutionizing internet services. One click and the whole world instantly unfold before the user.

Access to internet has become quicker with the introduction of broadband services. Broadband connection offers high speed access to the internet with a fast rate of data transmission over a fiber optic wire utilizing 56k router. It is different from a dial-up access that utilizes a telephone router which has a slower speed. DSL, ASDL, Cable internet, VSDL, Wi-Fi and the latest WiMax are the technologies used for broadband access.

In India, both government and private players are present in the market as broadband service providers. Big names like Airtel, BSNL, MTNL, TATA Indicom, Reliance, Idea, Tikona, Hathway, Youbroadband, Infotel, Asianet and Sify are among the best broadband providers at present. These companies provide superior speed ranging from 256 Kbps upto 50 Mbps that is provided by the market leader Airtel. However, the government owned BSNL is not far behind. It has emerged as the top player that offers the most pocket friendly broadband service all over India.

Different companies have a host of services and broadband plans to woo their customers and to cater to their diverse requirements. Internet service providers charge for the usage according to the speed chosen by the customer. Besides that there are unlimited access plans useful for long duration surfers or the night plans with concessional rates. Some even have a prepaid plan wherein no monthly bill is charged. Few companies also provide landline, broadband and DTH connection in a single plan.

Today Wi-Fi connection has changed the whole experience for a home based broadband user. With a Wi-Fi network a domestic user can conveniently enjoy high speed internet in any part of home. For those who have to travel often Wi-Fi provides fast, secure and reliable internet access no matter where one goes. Superior technology has made it possible to stay connected in other countries of the world too using a Wi-Fi broadband connection. Satellite broadband too is slowly gaining popularity that is useful for business or other communication needs. However, the high cost involved makes it unsuitable for an average domestic user.

Nowadays access to a broadband connection and internet penetration are considered as economic indicators implying the development of any country. Seeing the advantages that the internet has to offer governments all over the world are trying to increase the number of internet users especially in the rural areas. The Indian government too has set a target for 20 million broadband connections by the end of the year 2010 covering all high schools as well as gram panchayats and public health care centres. Indeed a herculean task but not impossible at all.

access point vs router