Abstract: The invention is a data transmission medium and a method of data transmission. A data transmission system in accordance with the invention includes a plurality of modems; a transmission medium coupled to each of the modems with data transmissions between the modems being transmitted by the transmission medium with a data transmission protocol; a plurality of processors which use a common processor data protocol, each processor being coupled to one of the modems; a plurality of devices, each device receiving and/or transmitting data transmissions with a device data protocol and being coupled to a processor; and a plurality of digital devices, coupled to the transmission medium, which perform at least one of transmitting digital data to the transmission medium for transmission by the transmission medium to another digital device and receiving digital data from another digital device transmitted by the transmission medium.

Abstract: The invention is a connection system used to connect devices, which transmit and receive data transmission medium. A connection system in accordance with the invention includes a housing for connection to an associated device and containing a stack of circuit boards, which are mounted therein. The circuit boards include a modem board, a processor board and a power supply board. The power supply board provides regulated electrical power to the stack of circuit boards. The modem board modulates data transmissions, modulated with a processor protocol which are received from the processor board, with a data transmission protocol used for transmitting data transmissions modulated with the data transmission protocol with the data transmission medium to another device and demodulates data transmissions modulated with the data transmission protocol which are received from another device into the processor protocol.

Abstract: The invention is a data transmission medium and a method of data transmission. A data transmission system in accordance with the invention includes a plurality of modems; a transmission medium coupled to each of the modems with data transmissions between the modems being transmitted by the transmission medium with a data transmission protocol; a plurality of processors which use a common processor data protocol, each processor being coupled to one of the modems; a plurality of devices, each device receiving and/or transmitting data transmissions with a device data protocol and being coupled to a processor; and a plurality of digital devices, coupled to the transmission medium, which perform at least one of transmitting digital data to the transmission medium for transmission by the transmission medium to another digital device and receiving digital data from another digital device transmitted by the transmission medium.