Features of Bus Connection Scheme of Medium Speed IP-Devices with PoE-Option

Expediency of the use of bus-organized structures at communication link physical layer of medium speed local area networks is substantiated. Presumption of application of Fast Ethernet devices as well as PoE+ Remote Power Feeding systems establishes the maximal number of separate segments in similar structures; and it stipulates main factors of limitation of their quantity. With deployment of a multicriterial approach, the construction of the line cable for forming up the transmission channel in terms of quantity of pairs, core class and wire diameter within classical round insulation, is substantiated.