Technical data

www.westermo.com Theoretical and general applications 147
Auto-Negotiate The IEEE802.3u standard specifies a MAC sub-layer for the
identification of the speed and duplex mode of connection
being supported by a device. Support of this feature is optional.
Auto-Sense The ability of a 10/100 Ethernet device to interpret the speed
and duplex mode of the attached device. It will automatically
configure itself to match the required configuration.
Baud Defines the speed of the number of “packets” transferred per
second. With local data communication baud = bit/s. With
telecommunication there can be more bits in each packet.
Binary Digits can only adopt one of two values, one or zero, which are
represented by the computer semiconductor’s two possible
positions, the absence and presence of a current.
Bit A data bit is a binary digit, a one or a zero.
Bit/s The transfer of data measured in the number of data bits per
second.
BOOTP The BOOTP Protocol allows network devices to request
configuration information from a BOOTP server.
BRI Basic Rate Interface, ISDN service that gives access to two
B-channels and one 16 kbit/s D-channel.
Broadband A technology that makes it possible to simultaneously transfer
several different channels with data, audio and video at different
frequencies.
BSC Base Station Controller, A switching station in a GSM network
that communicates between the base transceiver stations and
the core network.
BTS Base Transceiver Station, Base radio station in the GSM network
that communicates between mobile equipment and a BSC (Base
Controller Station).
Buffer Memory storage that can save data for short periods, for exam-
ple, while waiting for the receiver.
Byte Is a character built up of binary digits, for example, an ASCII-char-
acter, that consists of 7–8 data bits, which corresponds to an
alphanumerical character.
B A C K