A radio frequency driven plasma ion source has an external RF antenna, i. The assembly includes a fiber optic cable having a plurality of optical fibers. After discontinuation of the domain management by the first domain management device, a second domain management device sends a request to the domain registration server for obtaining the right to manage the domain. A central communications station could be used to maintain secure, shared private key encrypted communications with each premises system, using a redirector arrangement or relay to allow each premises system to communicate securely with a central monitoring station and with other systems. The system allows the student to seamlessly continue the learning session in a second, different learning environment. The burst request signal may be replaced with a number-of-transfer-bytes information signal to continuously transfer data of a number of transfer bytes designated by the number-of-transfer-bytes information signal.