An infusion system to administer fluid is disclosed. The invention also provides a communication system, an access point, and a communication device. An anodic alumina template is formed on the substrate. The serial information superimposed travels to the driver via the power cable. After accomplishing shallow trench isolations, the second ion implantation for threshold voltage adjustment are finally performed. The disposable fluid circuit is mounted in association with the reusable controller and the collected blood is processed through the disposable fluid circuit assembly to separate it into the desired components.