5+ Types of DSL

Types of DSL

There are several types of DSL technology is based on the difference in data speed and maximum distance caused by the attempt to increase the speed of sending data using the existing telephone network. Types of DSL are used depending on the needs of the customer as well as services that can be provided in its territory:


1. IDSL (ISDN Digital Subscriber Line)

The technology is based on technology ISDN BRI (Basic Rate Interface). IDSL offers services such as BRI with the send speed (uplink) and receive (downlink) the same of 144 kbps, but with the cheaper devices. IDSL is only offering data communications services not for voice communications on the same line.


2. SDSL (Symmetric Digital Subscriber Line)

This technology uses 784 kbps data speeds, good for send (uplink) or received (downlink). As well as IDSL, SDSL offer only data communication only. SDSL is a suitable solution for business circles to be used the US communication between branches or the relationship web sites to the internet. SDSL is suitable for high speed internet access for housing because it gives the speed or bandwidth of up to 2.3 Mbps and is symmetrical, with a maximum distance to 2.4 km. ideal for Remote LAN access (remote LAN), VOD (Video On Demand), residential converencing and video others.


3. ADSL (Asymetric Digital Subscriber Line)

These technologies have different data rates to send (uplink) and receive (downlink). ADSL technology suitable for accessing the internet and became the choice of the user. For up to 8 Mbps uplink to downlink could reach 1 Mbps maximum cable distance to Target by 5.5 km. this technology is especially more private customers receive data instead of sending data, for instance was to access the internet.


The advantages of ADSL compared to others is the highest velocity with an adequate distance and can support voice communication services. Both data and voice communications services are provided through two separate canals, but keep the same one cable. While the other DSL technology uses two separate cables for both services can give you such communications.


Due to various advantages of ADSL technology that is owned by this then this technology is growing very fast. Data transmission via ADSL is carried out by several stages. The modem modulates and encode digital data (encode) from the PC and then combined with the phone's signal to send to the Office phone. In the Office the phone the phone signal is separated from the digital signal for later encoded. Through a network of data communication signal is sent to the other party, such as an ISP or other offices. the data network used is depending on the service provider ASDL, could frame relay or ATM (Asynchronous Transfer Mode).


While the digital signal from YOUR ISP or company network to another is modulated and encoded into signals ASDL in Office phone. Then combine with the modem phone signal before sent to customers, the separator (splitter) separating signals from digital signals. The digital signal is modulated and decode and then sent to the PC. The phone signal is combined with the signal in one cable ASDL stays in power by give the phone company. Although ADSL line not working or no PC turned on phone line can still function us usual. There are two different modulation techniques are applied on ADSL.


The first modulation technique is to apply the techniques of modulation of CAP (Carierless Amplitude and Phase). The CAP combines upstream and downstream data signal, then separating them on the receiver and modem with echo cancellation techniques. The other modulation techniques are DMT (Discrete Multitone), which separates signals upstream of downstream signal with the Ribbon carrier (carrier band). In the future the ADSL products will use the technique of modulation DMT.


4. the VDSL (Very high-bit-rate Digital Subscriber Line)

VDSL technology are asymmetric. The range of operations is limited to 1.000 to 4.500 feet (304 metres-1.37 Km), but he can handle the bandwidth the average 13Mbps to 52 Mbps to 1.5 Mbps downstream and up to 2.3 Mbps upstream for him through a pair of copper wire winding.


The remaining bandwidth allows telecommunications companies provide program service HDTV (high-definition television) and VDSL technologies. This technology can also transmit data at speeds of 1.6 Mbps and receive data at speeds of 25 Mbps with maximum distance up to 900 meters. Because of this the high technology it requires fiber-optic cables that his ability is higher than the existing copper cable wear.


5. HDSL (High data rate Digital Subscriber Line)

HDSL is suitable for Office buildings or office complexes, because it gives the speed or data width to 10 Mbps and can be assigned to all end users. The infrastructure required for this connection HDSL can use PBX line owned the building, without having to menginvestasi the construction of computer networks.


The maximum distance is long enough to reach 1 km. HDSL wearing two pairs of twisted cable that will carry data at speeds of 1, 544Mbps upstream (from the customer to the network) and downstream (from the network to the Subscriber). Moreover technologies also HDSL also use three pairs of twisted cable with speed 2, 048Mbps with data rate up to 12 feet.


6. RDSL (Rate Adaptive Digital Subscriber Line)

RDSL is one of DSL technology, where this technology can work on different data rate depends on the cable length and the distance is.

7+ Tips How to Get Free Internet Connection

How To Get Free Internet Connection

CLKZ - This article will show you how to connect a computer, cell phone, or tablets, to the internet for free. To do so, you may be out of the House to find a free WiFi network, even though you could just make a deal with the neighbors around the House regarding the use of the internet if you want.

1, Look for network data base free internet via hotspots. You can find free internet networks near you by typing  "free internet hotspot " on Google or a similar search engine. In addition, there are also a few steps that you can follow through to a mobile device:
"Find Wi-Fi's" liquid free application available for both iPhone or Android platform. You can use this app and mobile location services to find a free WiFi network near you.
Mobile Facebook application features  "Find Wi-Fi " that can be used in order to open the map points Tagclient hotspot (Electric Motor). This feature when on the menu  "☰".

2. Special package mobile phone data as a network or internet hotspot. This process is known by the term  "tethering ". You could do a  "bind " on a particular mobile phone data to the computer using your iPhone or Android smart phones. However, remember that the tagline cost use of special data remains valid until it's good this step is taken only if you subscribe to a data package without limit, or when emergency conditions that require the use of the internet.
Not all mobile service providers support the  "bind ". If you do not find the option  "bind " on your mobile phone settings, contact the mobile service provider that you Stand to find out whether they can organize and activate the feature.

3. Find out if the service provider company party offers a free internet hotspot. Many internet service providers companies provides points of hotspots in major cities for the users. The Tagline you do to and access the network is simply sign in with your email account and password. Typically, this step can be followed if you subscription internet service from the service provider in question (IE. Telkom).

Generally, most companies internet service provider Tagclient WiFi hotspot locations list on its website.

4. Internet service free trial. In the United States, for example, your internet service provider NetZero offers free internet dial-up network with a quota of 10 hours each month. However, the Tagline you connect a computer to a phone in order to use the service. Some of the other internet service providers also sometimes offer a free internet network that could be used in specific acupuncture within the time limit, especially the authenticity in public places so make sure you find out about promotions-promotions like this.

There is a possibility Your tagline enter payment details when making your internet service account you choose. Make sure you cancel your account before the trial period is completed. If not, you will be charged for those services.

5. Do barter between acupuncture specific tasks with free internet access. If you have neighbors who are friendly, offer yourself to work on tasks or home page with a  "fee's" free access to the internet network. Make sure you make a contract with him to make sure every party to find out the rights and obligations for the fixed internet access is used in.
If you want to follow these steps, make sure you're not doing illegal acts when using the WiFi network belonging to a neighbor. Besides that, do not capture the bandwidth (bandwidth) networks with downloading or do streatming HD-quality movies, games, and other menscroll-menscroll.

6. Look for stores (or maybe a shopping center) or a place of business in the city You can visit to and start working. The role of the internet in the everyday display difficult to casually ignored. This is what makes many restaurants, businesses, and public buildings offer a free WiFi network. Although there may be a warning or requirements regarding the use of WiFi (IE. Your tagline buy drinks or snacks, or create a membership account in the relevant place of business),  "fee's" use of WiFi is usually not expensive so it won't weigh You to pay for it. Some examples of interest generally offer free WiFi network, among others, are:
The coffee shop
Airport
Hotel
Restaurant
Rest area Highway
Convenience stores
The Mall
Library

7. Look for free WiFi networks while waiting for certain services. This is a very broad concept actually is, but every time you wait for the service (e.g. replacement car oil or dental check), look for free internet network in a building or place of business in question. Typically, most businesses offer a free WiFi network that can be used while waiting for the service is completed.

8. Take advantage of the networks available in your school or library. Although you can not access the WiFi network in a library or school, you can usually use one of the computers in both places, and access the internet. Some libraries or schools are implementing the daily use restrictions (or content restrictions), then make sure you know what can (and can't) do before utilizing the facility.

Here is The advantages and disadvantages of DSL

Advantages and disadvantages of DSL

The Advantages Of DSL:

DSL provides many advantages. Because copper chain wear available means there is no need to install again the infrastructure so that DSL is becoming cheaper. In addition to this direct service DSL is always connected to the ISP and not pay per minute.

Us for the advantages of DSL are:

Simultaneous connections between internet with voice/fax via telephone wire
High access speed and always online
Use of cheap prices especially for housing
Data security preserved
DSL can meet the needs for data transmission at high speed as well as a variety of services but the procurement and maintenance of DSL service is not always easy. The problem that exists between other range limitations, after-sales service and technical support is not good for the customer. Which is also another advantage of DSL technology is the use of existing copper wires where the network had already reached the offices and homes so that the necessary infrastructure development to be not too expensive

Shortage Of DSL:

There are three obstacles confronting the current IE copper telephone cable length to customers, load coils and bridged taps, optical fibers are used for multiple phone lines. 
These three barriers are:

Copper cable length from the CO to the customers. Example: If the length of the copper wires over 18.500 feet then service signal to noise ratio is too low and the strengthening of the signal becomes too large to be carried over ADSL speeds reasonable. If the customers are in 18.500 feet were not necessarily guarantee a good service and satisfying because it does not include branches of the copper wires to various customers.

The existence load coils and bridged taps. Local Exchange Carriers (LEC's) using a load coil to provide telephone service in areas that require extra equipment or the installation of the copper loop. Load coil is the equipment induction sound carrier frequency shift up. This was compensation for capacitance cables particularly to reach more than 18.000 feet. Unfortunately, replaceable frequencies to frequencies used for DSL, resulting in interference that cannot be tolerated. So this method makes the line was no match for ADSL. Bridged tap is part of the cable which are not on a line directly from the customer to the co. the Bridged tap makes it easy to LEC to provide copper loops without creating new paths along a distance of customers to the co. If the number is a little bit still allows those lines using DSL. But the echoes and additional noise arising due to the bridged tap can make DSL cannot be hurricane. Some LEC move this equipment but will need quite a long time to clean up the entire line.

The third obstacle is the optical fiber. DSL is a digital service that is made to be carried with the analog channels, namely copper wires. Therefore the signals cannot be sent through the media that use digital transmission such as fiber optics. Usually the optical fiber used for Digital Loop Carrier (DLC) or Subscriber Loop Carrier (SLC). Areas that use optical fibers cannot be served by DSL. To resolve this problem, the phone company test and wear a device called the mini-Remote Access Multiplexers (mini-RAMs) that will facilitate the DSL service for customers behind the DLC and can provide eight channels with DSL service. But it also has limited reach because the copper cable length is not measured from the customer to the co. but from RAM to the customer. In addition, it is not yet known for certain where and when the mini-RAMs should be installed.

DSL technology is the use of existing copper wires where the network had already reached the offices and homes so that the necessary infrastructure development to be not too expensive. But the use of an existing cable it should pay attention to several things related to the data signal. Such as attenuation, crosstalk and noise (noise). Attenuation is weakening the signal caused by the presence of an increasingly far distance that must be taken by a signal, and also because of the increasing frequency of the signal. 

Due to the distance and frequency of the farthest distance that still probably is about 5.5 km with a bandwidth of about 1 MHz. Crosstalk will be brought about by the pair telephone wire is used. This disorder can occur due to signals with the same speed of each cable can influence each other, when these disorders are higher compared to the data signal then will arise many errors that slow down the speed of the flow of data. To • avoid the effects of crosstalk can be created for each cable in one direction, so that the signal on each cable is not mutually affect.

Best Internet Provider In Indonesia This 2018

The Internet is no longer just a secondary requirement in recent years. Not only in public spaces and in the interest of the work, the internet is also needed in the House. Even many of the personal needs which is done through the internet. For example ordering services of laundry, cleaning service for your home, massages to makeup. With merambahnya needs the internet to all facets of life, then much of the home internet provider to search for.

In Indonesia there are many internet providers be it wireless (wifi) or using a cable. Of course this service is available for business or home. Some even become the main reference for anyone looking to install a wifi network at home. The internet provider also comes with a variety of package or plan. Most internet package already merged with cable TV service.

For those of you who intend to use to install the internet at home, so here we describe the biggest internet providers could be your reference. In addition, there are tips on what to consider in choosing an internet service.

List of the largest internet provider in Indonesia for home
A list of internet providers or Internet Service Provider (ISP) home below is a recommendation you can make consideration in accordance with their needs.

First Media
Online media which does not make the First Media as material consideration? With a reliable internet connection and cable TV services are market-leading, First Media is perfect for you who like entertainment from cable TV. You can enjoy local and international channel 167 quality with High Definition (HD) 4 k, the sound quality of Dolby Digital 5.1, 16:9 aspect ratio, resolution of 1080i and 2 million pixels so 5 x more clear. First Media provides cable TV services in all internet package option you choose at affordable prices.

MyRepublic
ISP MyRepublic one of the players that are competitive in terms of price and speed of the internet. They have a package from 289,000 to Rp Rp 999,000 with speed reaching 300 Mbps. Although the current MyRepublic does not yet have a wide range of areas, but in the big cities in Indonesia has MyRepublic service is available. MyRepublic is also the only internet providers that provide special packages for gamers. With Online Gaming package was guaranteed more convenient and without interruption.

Biznet Home
Famous for its wide coverage area, Biznet Home internet service with fiber optic cable to more than 100 cities in Indonesia. The amount of this city is still growing to this day. Biznet provides a combo package of the internet and cable TV or home internet package only. Though not as fast as its Internet service from other ISP services, Biznet offers upload and download speeds are the same. So if you choose the download speeds of 50 Mbps, You can also enjoy a 50 Mbps upload speed.

MNC Play
One of the highest-speed internet provider in Indonesia. MNC Play using the technology of Fiber To The Home (FTTH), MNC Play optical fiber cable network provides 100% across the line up into your home. Unlike other conducting media using copper wires, with technology MNC internet provider FTTH Play ready provides network capacity up to 2.5 Gbps. MNC Play package offers internet speeds ranging from 10 Mbps to 1 Gbps.

IndiHome Fiber
Formerly known as the Speedy Internet, IndiHome Fiber from PT Telkomsel Indonesia, Tbk is famous for a very broad range. Where ever you are in Indonesia, IndiHome Fiber service is ready to serve you. Of course this is because Telkomsel is Indonesia's largest telecommunications company. You can choose from the diverse IndiHome in terms of internet speed, the amount of service and price. You are free to choose between the speeds of 10 Mbps to 100 Mbps and additional cable TV services or home phone.

CBN
The Internet Provider that provides the highest speed internet more on Indonesia is CBN. The CBN provides fiber optic internet network and wireless broadband with a choice of speeds up to 1 Gbps Fiber optic. offered has a network of Fiber To The Home (FTTH) and No Fair Usage Policy. While broadband Wireless network available for housing and also the mall. Lowest price package for home internet options ranging from 299,000 Usd per month, with a speed of 15 Mbps. every package comes with exciting features such as 5 GB for free service capacity at CBN email.

GIG Indosat
GIG of Indosat is the internet service provider the internet with speeds up to 1 Gbps with many interesting features. You will not need a cable TV with a GIG for You given the service and Google Tools Chromecast iflix. Make your TV into a Smart TV and enjoy a variety of interesting broadcast from iflix in wireless from your mobile devices such as Smartphones, tablet computers to the device High Definition TV or speakers.

What is Digital Subscriber Line ( DSL)?

Digital Subscriber Line ( DSL)

The development of the internet very quickly since the existence of the World Wide Web not only brought changes to the dissemination of information but also bring changes to the telecommunications infrastructure. But the speed of the increase of the number of internet users and the number of streams of data (information) faster than the development of the telecommunications infrastructure. With the growing number of information and data to be accessed form especially with multimedia is increasingly degrading demands for speed data access and informasi.

For a company will speed high data communication is indispensable for implementation on real-time multimedia applications such as video conferencing, relationship with branch offices, and other information services. To get a better quality then the diberikanlah solution with the ISDN (Integrated Service Digital Network). 

With digital technology the speed of data transmission can be done up to 64 Kbps for each channel, because basic ISDN can provide two canals then overall could have obtained access speed up to 128 Kbps. However, the main constraint of ISDN technology this is it needs a new telecommunications network. So not everyone can enjoy the advantages of this technology. In Indonesia there are telecommunications services that use this technology, namely the pasopati but this new limited services in several major cities.

Many of the variety used by Telecom operators to provide broadband access services to customers. From the media used, can be distinguished into two wireline technology (cable) and wireless technology (without cable). From wireline technology category can be used with DSL (Digital Subscriber Line), cable modem, HFC, optical. While the wireless category can take advantage of wireless LAN technology, BWA (Broadband Wireless Access) as well as the latest technology WiMAX (Worldwide Interoperability for Microwave Access).

With a variety of solutions above, some operators utilizing DSL technology (cable) and BWA (for wireless). For the incumbent telecommunications operator in a country, e.g. TELKOM for Indonesia which has presented cable about 6 million line will then utilise the DSL technology in order to update the enhanced physical network to transmit high speed data to the customer. As for the new operator is very difficult and expensive when deploying broadband network with DSL. Alternative harness wireless technology (BWA). With the birth of the newest wireless technology (WiMAX) then it can be used as a substitute or alternative to transmit broadband services to the customer.

When viewed from its market segment, between WiMAX and DSL have in common that is equally devoted to the MAN (Metro Area Network) where the distance to the customer about 10 km. 

Then comes the thought to keep using the existing infrastructure in order to build a high speed connection, based with the expensive new investments and the magnitude of the demand the need for quick access. One solution is with DSL (Digital Subscriber Line) which is a new technology. 

Subsriber digital Line (DSL) is a technology access with a special device at the central office and the customer that allows transmission of broadband through copper wires, this technology is often referred to by the term technology a shot or injection technology examples of operators that have been rolling out DSL in Indonesia are PT TELKOM. The product named SPEEDY. Regular phone wires so that there can be used to deliver a large amount of data and high speed. The phone using only the most capable frequency transmitted by copper wires. While DSL utilizing more frequency with share them (splitting), higher frequencies for data and a lower frequency for voice and fax. The distance the wearer to the CO determines the speed of DSL. The more users, the distance was much lower speed. 

Seen from the technical side of DSL technology uses packet data base while voice communication-based connections (circuit-switch). For connection-based data communications, the connection with a certain bandwidth width must be maintained even though there is no data passes. For voice communications for a short time unused is not so problematic, but for a long data communications will squander the resources owned by the PSTN. While data communication based package will allow optimum use of bandwith, because it can be used for more than one connections efficiently and economically.

DSL uses standard phone cord work made of copper telephone wire, the current type is already connected many and widely available to homes or offices. DSL technology brings both digital as well as analog signals on one cable. Digital signals to analog signals while data communication for the sound of the phone used halnya seperti now referred to as POTS (Plain Old Telephone System). The ability to separate voice and data signals is an advantage. DSL will connect and carry digital signals for data communication and works by using a special modem (DSL modem) to read (encode) such data and then send it via an unused frequency on the phone cord such. 

Utilizing high frequency DSL to send data and low frequency to channel the voice of/faximili. DSL became important and becomes a choice, at the time the user begins to seek the access speed to the internet connection. Without having to be dizzy and tired of waiting for bermenit - menit just to open a page of the internet let alone can enjoy multimedia services over the internet, such as watching the video service, video conferencing (camera) or other online service and the price could be cheaper Network PSTN (Public Switch Telephone Network) designed for voice communication that only a short berlangsung about three to five minutes.

Because of this then the same connection can be used alternately so as not to penyediaan the phone connection is required just as much with the number of telephone channels. But for data communication is generally the customer uses the time old lebih, especially with the existence of the internet it, then consequently the success rate of connection is experiencing a decline since majority of telephone lines used in the period the old.

Development of traffic very quickly this will overload the public telephone network (PSTN). There are two options that can be taken on the telecommunications service provider to resolve these things the first is improving the PSTN network to handle voice and data komunikasi demand increased and the latter move then litas data to a separate network designed specifically for data communication. Seen from the technical side of DSL technology uses packet data base while voice communication-based connections (circuit-switch).

For connection-based data communications, the connection with a certain bandwidth width must be maintained even though there is no data passes. For voice communications for a short time unused is not so problematic, but for a long data communications will squander the resources owned by the PSTN. While data communication based package will allow optimum use of bandwidth, because it can be used for more than one connection scar efficiently and economically. 

Which is also another advantage of DSL technology is the penggunaan of existing copper wires where the network had already reached the offices and homes so that the necessary infrastructure development to be not too expensive. But the use of an existing cable it should pay attention to several things related to the data signal. Such as attenuation, crosstalk, and noise (noise). Attenuation is weakening the signal caused by the presence of an increasingly far distance that must be taken by a signal, and also because of the increasing frequency of the signal. Due to the distance and frequency of the farthest distance that still probably is about 5.5 km with a bandwidth of about 1 MHz. Crosstalk will be ditimbulkan by the pair telephone wire is used.

This disorder can occur due to signals with the same speed of each cable can influence each other, when these disorders are higher compared to the data signal then akan arise many errors that slow down the speed of the flow of data. To avoid the effects of crosstalk can be created for each cable in one direction, so that the signal on each of the wires do not influence each other.