It is termed a half- bridge as one is required at each end of the link. Handshake - Part of the procedure to set up a datacommunications link. Sometimes, the handshake is just a warning that a communication is imminent.
Every transmission has to go through the head-end in a broadband network.
The head-end is the piece of hardware that enables a network to send and receive on the same piece of cable. In CATV technology, the head-end is the control center for a cable system where signals are processed and sent for distribution down the cable system. Header - The control information added to the beginning of a transmitted message. This may consist of packet or block address, destination, message number and routing instructions. Hertz - A measure of radio frequency.