How It Works

General

At the end user office

The end user connects his or her PC or LAN to the SatADSL modem with an Ethernet cable.

On the roof of the end user office

point_and_play

The end user, with the help of the partner-distributor if needed, installs the 1-meter (or 1.2-meter) antenna outside. The Point & Play® tool enables self-installation thanks to a pointing assistance system.

Once connected, the user can start browse right away since no software or driver is required. The data is transmitted from the modem to the satellite via an encrypted radio signal.

Then, the satellite bounces the data down to a hub station located in Europe. The latter is connected to the IP backbone through reliable, high data rate connections.

From that point, the end user can access any server connected to public networks and available on the cloud.

Satellite vs. terrestrial services

1. Services Availability

The main difference of the SatADSL system compared to terrestrial ADSL is the service availability.

While ADSL is available in areas where terrestrial lines are present, SatADSL solutions can be deployed anywhere there is a good view of the sky within the footprint of the satellite used.

This allows the solution to be implemented even in extremely remote regions where it is uneconomical to deploy fibre or even copper.

 2. Services Reliability

The second main advantage of the SatADSL solution compared to ADSL or any other terrestrial solution, is that it doesn’t depend on any local infrastructure, so reliability is much higher. For example, ADSL, cellular data and even fibre, rely on power grids for power supply.

Such power grids can be unreliable in many African countries. Local infrastructure can also be victim of theft, vandalism or simply natural phenomena, which add additional potential causes of service interruption with degradation.

SatADSL service is immune from such sources of unreliability, making it the most dependable communications option in the region.

SatADSL vs. other satellite based solution

1. Optimal bandwidth management to achieve affordable price

Compared to classic VSAT solutions, the SatADSL Sat3Play technology uses a different approach for bandwidth management. Classic VSATs use a relatively limited bandwidth, a few megabits per second, and share them among a small number of users, typically from one, in the case of dedicated service, up to 10 or 20 for services with contention 1:10 or 1:20.

This implies that the cost of the satellite bandwidth has to be shared among the users for the allocated bandwidth. This, considering the high cost of satellite capacity, generally results in high recurring costs.

SatADSL technology uses a completely different approach: a large bandwidth – tens of megabits per second – are shared among a large number of users (actually all system users), fully exploiting an effect called statistical multiplexing.

In fact, among the hundreds of users subscribing to the system, statistically not all of them will be connected at the same time. Out of those connected, only some of them will be requesting bandwidth resources at any single time, while others will be reading the page downloaded, writing an email, or performing other tasks that do not consume bandwidth.

For such statistical multiplexing effects to kick in, it needs a certain amount of bandwidth as well a minimum number of users, as the multiplexing is more effective the larger the user base.

The described possibility of optimal bandwidth management and the large subscriber base achieved, allow SatADSL to offer very competitive service pricing.

2. Cutting edge technology to minimize hardware cost

In addition, the Sat3Play technology is based on a large and complex hub, but relatively simple user terminals. This allows access to the service via a low cost and low power terminal at a fraction of the price of a classic VSAT installation.

The low cost terminal (2-3 time cheaper than standard VSAT kits) is also easy to install and point to the satellite, thanks to Point & Play® terminal configuration.

Without a complex configuration procedure or expensive VSAT kit, our solution allows temporary, easily displaceable installations that can be put to use in a variety of situations: construction sites, humanitarian camps, NGOs and more.

3. Tailor made service plans to fulfill your needs

Last but not least, SatADSL has the ability to design tailor made service plans, to ensure the bandwidth allocated to each client is exactly what he/she needs.

With SatADSL you’ll receive the right combination of speed, volume forward/return link and contention to fulfill your daily usage and minimize the cost of your connection.