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Mobility

Able Touch

Able Touch (AT) in-building system for WiFi access is elegant and simple to implement. There are two main units and sometimes the mobile operator needs to replace the antennas to support 2400 MHz. The mobile operator will supply the WiFi Access Point (AP) of any make and from the output of the AP (which supposedly transmits out through an antenna) goes to the AT amplifier. The latter will then amplify the 100mW input to 4~7 watts. This output subsequently travels to the diplexer that combines the existing RF mobile signal with the WiFi signal. The combined signal will populate the whole building with 2.4 GHz and mobile signal throughout the existing infrastructure.

The advantages of adopting this system are obvious :-
	Low Cost - The cost of propagating WiFi into building becomes very affordable because this system requires very little cabling and active components.
	Seamless Connectivity - The cost of planting this system is much lower as there is no extra infrastructure to build since the WiFi signal shares the same infrastructure as the mobile signal.
	Low Maintenance - Maintenance is kept to a minimum since the whole RF infrastructure is passive network. In fact mobile operator is tasked to maintain this network and there should little of no maintenance from the AT system.
	Scalability & Flexibility - Operator could upgrade their WiFi technology easily by removing the existing AP and move in another AP with newer technology. It is also adaptable for future needs/services.
	Easy Installation & Configuration – One-time installation avoids the problems with deploying separate systems, thereby saving costs and causes minimal disruption.
	Obsolescence-resistant – The “wire it once” technology allows for other future applications to be installed easily.
	Reliability – Since there are only two active devices, namely the amplifier and the WiFi Access point, the uptime of the IBS surpasses a typical WLAN setup. WLAN setup requires many active hubs and access points which lead to multiple points of failure in the set-up