Build a rough idea Cable TV headend

Here will be a little I give a rough idea to create a head end cable tv.after finding the target customers and the areas to be targeted:

     determine the number of channels to be distributed, the number of channels will be inversely with the necessary tools. for 10 channels is required 10 RF modulator modulator estimated price per unit approximately 1.5 Mt or simply browsing the search for suitable in the bag
     determine the content to be distributed, the channel to be distributed also affects the investment we are going to spend. No channel free / free to air or taking any premium channel / pay. for free-to-air channel, we will not issue monthly fees to pay for content, we just stayed calculate how receiver needs required, when 10-channel receiver yes we multiply the price per unit how much, then just count the number of channels required parabolic us. for example, we take on the satelite channel Telkom and Palapa, means we need two LNB satellite dish and 4 pieces (each satelite we provide 2 LNB for Vertical and Horizontal polarity) for the price of just browsing only. to pay or premium channel, usually supplied by the provider, be it a set-top box or satellite dish. please look for the best deals from the existing provider Indovision eg, Transvision or Topas tv.
     besides Parabola, Receiver, LNB, we also need power devider, which is a device that serves to keep the voltage of the receiver or decoder does not enter decoder or receiver else, just straight dole voltage requirements in LNB (only required if one LNB / polarity used for some Receiver . appropriate channel plan that we created)
    which clearly needed again is a coaxial cable from the LNB to a central / to reciever
    after the channel we wanted received and already we change to signal RF (Radio Frequency) using RF Modulator, to combine all the channels we do that we need a combiner. we can use the splitter combiner reversed to replace it (eg splitter 8 way back so that we can be a combiner 8 inputs ==> so input output)
    out of the combiner, we take a concerted a signal amplifier is often called amps / Booster
    to give the impression of a neat and simplify the maintenance head end, needed a rack to put the receiver device, rf modulator and others.
    a tv is required to monitor the channel that we have in head end

Term of Networking

Have you ever heard the term Networking, networks, workstations, servers, clients, and stand alone computer?

Computer Network:
Within computer science, will be called the Computer Network if there are some computers that salingberhubungan each other and can use other devices together. This group will be listed into the same group. Conditions like these are called Computer Network.

networking
Understanding of networking is that if there are multiple computers connected in the same network and shared access, both data and equipment resources. Networking is also a network system.

workstation
In a system jaringantidak komputer.Berdasarkan consists of only one sense, the network or network system is a collection of computers connected to each lainyang form one group. From a network before, there are several connected computer, each computer was called a workstation.

stand alone
The term stand-alone is the inverse of the network. If the computer is not connected in a network, the computer will stand alone. The computer can only use the data resources of other tools that exist in the computer itself. This is called stand alone.

Elektronika&Hoby: VGA pin

Elektronika&Hoby: VGA pin: "VGA 9 pin : pin 1 : Video Red pin 2 : Video Green pin 3 : Video Blue pin 4 : Horizontal sync pin 5 : Vertical sync pin 6 : Red GND p..."

Servers

Servers
Literally, the server is a computer that serves to regulate or be a coordinator in a computer network. In essence, the server is the parent of all computers connected in a computer network. The server responsible for handling the storage, processing, distribution of data centrally, also serves as a center of joint applications, as well as the main gateway to the internet (getway)
Examples of servers: In an office that contained 10 units of PC connected to a wired LAN switch n premises. When we access the internet from one PC does, in fact the PC is not connected directly to the internet, but connected by a host computer called a server. Here, the server serves as Getway.
Another example of a server: in a public company, commonly used applications enterprise resource planning (ERP). ERP is run by several computers, laptops, or desktop in many different divisions, that number could reach hundreds. To manage this resource, the host computer is required to distribute information to all those in need.

Bandwidth Aggregation: Better Safe than Sorry

 
Doubling your bandwidth (also known as your "pipe" or "throughput") is a great benefit of broadband aggregation, but it's not the only benefit. When using a broadband aggregator, a router specially designed for load-balancing, you will also immediately have a fail-safe in case one of your internet connections goes down. Obviously the speed will be slower when one of the connections is out (because your bandwidth will be cut in half), but at least you will still be able to perform critical By: Preston Wily
Since the internet became a staple in the American home countless surfers have felt the dreaded sting of that one word: "Disconnected." To some people this means having to wait just a few hours to find their true love or check their email. With the rise of the internet as a business application, however, has come an increased importance on having a reliable internet connection.
Take, for instance, a sales office. Most sales offices now rely on the internet for lead distribution, order processing, order tracking, etc. For a high-volume sales office an hour with a dead internet connection could easily set the company back ten thousand dollars. Other industries also deal with the realities of downtime - how much money could a day-trader lose by not covering his short by the closing bell?
The fact of the matter is that time on the internet is quite literally money for some. Having more of it gives them a competitive advantage and losing some of it results in serious financial losses. As obsessed as most serious business-people are with data redundancy (fact: more paper is consumed per capita in this digital era than at any time preceding the internet), most don't even consider the potential benefit of having redundant internet access. For many forward-thinking people who actually have a redundant option, they don't leverage the power of bandwidth aggregation to take advantage of the increased bandwidth.
So what is bandwidth aggregation? It's a pretty simple concept, actually: simply taking two broadband internet connections (T1, cable, DSL, fiber, etc.) and turning them into one fat connection. You could, for instance, have two DSL lines aggregated. You could also aggregate two different types of broadband - for instance, you could aggregate one T1 connection with one cable connection.
Aggregating two broadband connections gives you more bandwidth, but not necessarily speed. This is where many people get confused. Let's assume that you have a 3 Mbps DSL connection and you own a small business. This is a pretty fast connection, but you have ten employees and have noticed that at peak times the internet slows down or, in a worst case scenario, won't work at all for some people. By ordering another 3 Mbps DSL line you will still hit max speeds of 3 Mbps (note that this is a theoretical max that you will almost never hit with ADSL) but you will now have twice the bandwidth. In other words, if five simultaneous connections were feasible before, now you will be aboffice functions.
Let's assume that you operate a small company with ten employees and you have a T1 for everyday use. Your T1 is probably pretty reliable, but once or twice a year there is a glitch (like somebody kicking a cable at the ISP) and you lose, on average, two hours a year of internet access. By using a broadband aggregating router and adding a DSL line, when the T1 is out you will still be able to take orders, ship orders out, track orders, check inventory, etc. And if the outage is longer you won't be running around trying to find a backup data source. Employees might grumble about the slow speeds on the internet, but at least they will be able to get their work done. Also, as an added bonus, you will have more bandwidth for your employees when both internet sources are working.
The benefits of broadband aggregation greatly exceed the costs of not using it for virtually every established business. Broadband aggregation offers the flexibility and reliability for small businesses who cannot afford an expensive, customized IT solution.

Preston Wily is a marketer for Sewell Direct, an internet retailer of computer hardware and accessories. Sewell Direct currently offers the Splitronic Broadband Aggregator, a broadband aggregator intended for use in environments with 1-100 internet users. Article Source: http://EzineArticles.com/?expert=Preston_Wily

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