Specifications

Glossary
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Cisco AS5800 Operations, Administration, Maintenance, and Provisioning Guide
DOC-7810814=
baseline report
Compares two similar time ranges in one report. A baseline time range is maintained (protected against purge action) so that
baseline data is available at report time. The baseline time range can be one to 30 days. You can baseline both detail and
summary data, and you can store up to two baseline time ranges. However, the comparison reports run on any two time ranges
where data is available. The baseline comparison is a one-to-one comparison; therefore, no computation of average, minimum,
maximum, or standard deviation is performed on the baseline data.
basic service
The minimum set of capabilities deemed necessary for use of the public telecommunications network. Current basic service
includes an access line (usually one-party, analog, rotary dial), access to local and long distance calling, access to emergency
calling (911), and access to voice/nonvoice relay service.
baud
A unit of signaling speed. The speed in Baud is the number of discrete conditions or signal elements per second. If each signal
event represents only one bit condition, then Baud is the same as bits per second. Baud does not equal bits per second.
Bell operating company (BOC)
A local telephone company formerly owned by AT&T.
Bellcore
Bell Communications Research. Organization that performs research and development on behalf of the RBOCs.
Broadband Integrated Services Digital Network (
BISDN)
A high speed ISDN service intended to support full motion video and image applications, as well as data, at speeds of
approximately 150 Mbps.
bit
A binary digit, the smallest unit of information in a computer, represented as a 0 or 1. One character is typically seven or eight
bits in length.
bit rate
The speed at which digital signals are transmitted, expressed in bits per second.
bit/byte
A bit is the most basic element of digital information. One bit represented by either a 0 or 1, the absence or presence of
electricity or light is combined with other bits to form an eight-bit word or Byte. Bytes are the words of our digital language.
Depending on how the bits within them are ordered, these bytes can be translated into numbers, words, or commands.
bps
Bits per second, used to refer to transmission speeds of sending data (e.g., 2400 bps, 14,400 bps, etc.). Speed takes on particular
importance when using on-line Internet services. See also “kbps.”
Basic Rate Interface (BRI)
This ISDN scheme is identified as 2B+D, and permits two “bearer” channels, each operating at 64 kbps, and one “data”
channel, operating at 16 kbps, to be carried over a single twisted pair copper wire.