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

Glossary 197
Glossary
DTC/X.25 Network Access
card This is the hardware card
and channel adapter that
provides X.25 Network Access. It
resides in the
Datacommunications and
Terminal Controller (DTC).
DTC/X.25 iX Network Link
Software and hardware that
provides access to private and
public X.25 networks. The X.25 iX
System Access software resides
on an HP 3000 host and is
configured through use of
NMMGR.
DTE Data Terminal Equipment.
Equipment that converts user
information into
data-transmission signals or
reconverts received data signals
into user information. Data
terminal equipment operates in
conjunction with data
circuit-terminating equipment.
DTS Datacommunications and
Terminal Subsystem. This
consists of all the
Datacommunications and
Terminal Controllers (DTCs) on a
LAN, their LANIC cards
(attached to the host), the LAN
cable, and the host and DTC
software that controls all related
DTS hardware.
DTS restart The startup of the
DTS subsystem, including the
release of all TIO-related
resources, using the DTCCNTRL
command file.
DTS shutdown Theshutdownof
the DTS subsystem, including the
release of all TIO-related
resources, using the DTCCNTRL
command file.
duplex Transmission method
that allows two-way
communication. If both ends of
the transmission link can
transmit simultaneously, it is
called full duplex. If only one end
can transmit at a time, it is
half-duplex transmission.
dynamic configuration The
ability to make DTS configuration
changes using NMMGR without
rebooting the HP 3000 system.
entry priority The ranking that
identifies the most desirable
route used to reach a given
remote node from a given local
node in a point-to-point network.
environment A session that is
established on a remote node.
escape from data transfer
character A character that
allows a user who is connected to
a host system through the DTC to
break that connection and return
to the DTC switching user
interface. The default is
[CTRL]-K.
This character is used only on
networks managed by the
OpenView Windows Workstation.
escape sequence A sequence of
characters beginning with the
escape character and followed by