Title :
100 Mb/s data transmission on UTP and STP cabling for demand priority networks
Author :
Coles, Alistair N. ; Cunningham, David G. ; Methley, Steven G.
Author_Institution :
Hewlett-Packard Labs., Bristol, UK
fDate :
12/1/1995 12:00:00 AM
Abstract :
There have been considerable advances towards higher speed (100 Mb/s) workgroup LANs which support the existing UTP and STP structured cabling utilized by 10 BASE-T and token ring LANs. The paper describes the transmission techniques used by an IEEE 802.12 demand priority network with UTP and STP structured cabling. The UTP transmission scheme supports categories 3-5 UTP (i.e. voice-grade and data-grade) using a 5B6B block coded binary signalling scheme on four pairs. This binary signalling scheme is shown to provide better immunity against crosstalk and external (impulse) noise than multilevel signalling schemes. The STP scheme combines the strengths of the 5B6B block code with signalling technology similar to existing SDDI links
Keywords :
IEEE standards; block codes; crosstalk; data communication; interference suppression; local area networks; telecommunication signalling; telecommunication standards; token networks; twisted pair cables; 10 BASE-T; 100 Mb/s data transmission; 100 Mbit/s; 5B6B block coded binary signalling scheme; IEEE 802.12 demand priority network; STP cabling; UTP cabling; crosstalk; data-grade; demand priority networks; external noise; structured cabling; token ring LAN; transmission techniques; voice-grade; workgroup LANs; Access protocols; Coaxial cables; Communication cables; Crosstalk; Data communication; Ethernet networks; Local area networks; Network topology; Repeaters; Token networks;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
