224 • GlossaryWAGO-I/O-SYSTEM 750ETHERNET TCP/IP8 GlossaryBBasebandSystems which operate without carrier frequencies, i.e. with unmodulatedsignals. Therefore, they only offer one channel which has to be logicallytailored to the various requirements. Opposite: Wideband.BitSmallest information unit. Its value can either be 1 or 0.Bit rateNumber of bits transmitted within a time unit.BNCBayonet Navy Connector. Socket for coaxial cable.BootPthe bootstrap protocol is a protocol which specifies how system and networkinformation is to be transmitted from a server to work stations.BridgeConnects two separate networks.BroadcastA message that is sent to all station connected to the network.BusA structure used to transmit data. There are two types, serial and parallel. Aserial bus transmits data bit by bit, whereas a parallel bus transmits manybits at one time.ByteBinary Yoked Transfer Element. A byte generally contains 8 bits.