Configuring and Managing Host-Based X.25 Links - Edition 5 (36939-90054)

190 Glossary
Glossary
directly accessible by people (for
example, terminal keyboards)
operate in this manner.
asynchronous processor
board The new 24-port mux
board for the DTC 72MX. Allows
up to 24 direct and modem
connections per board. A
DTC 72MX can have up to 3
asynchronous processor boards
(for a total of 72 connections).
attachment unit interface The
cable that runs between each
node (host, DTC, or other device)
and the Medium Attachment
Unit (MAU) that connects it to
the LAN in a ThickLAN
configuration.
AUI See attachment unit
interface.
autodial A dial link in which the
remote node’s telephone number
is automatically dialed by a
modem or other device with this
capability.
automatic configuration The
addition and configuration of a
host-based managed DTC to the
HP 3000 system without needing
to specify detailed configuration
information such as DTC
cards/boards and ldevs.
backbone LAN A thick LAN
cable conforming to the
IEEE 802.3 Type 10 BASE 5
standard.
back-to-back configuration A
DTC configuration whereby MPE
users connected to one DTC can
communicate with a non-MPE/iX
system connected to another DTC
via the LAN. (See also Local
Switching)
backup configuration file A
file that contains a copy of the
information contained in the
configuration file.The backup file,
calledNMCBACK.
group . account
by default, is updated each time
the configuration file is
successfully validated.
banner A welcome message
displayed on your screen. On the
local OpenView workstation a
banner appears when a remote
connection is established with the
OpenView DTC Manager. A
banner also can appear when you
log on to MPE.
baud Measure of the speed at
which information travels
between devices, most commonly
used in reference to terminal
speed settings. Baud represents
signal events per second. When
one bit represents each signal
change, baud is the same as “bits
per second”.
binary mode Data transfer
scheme in which no special
character processing is
performed. All characters are
considered to be data and are
passed through with no control
actions being taken.
bit Binary digit. A unit of
information that designates one
of two possible states, which are
represented by either 1 or 0.