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

212 Glossary
Glossary
terminate other processes
throughout a network from any
node on the network.
RS-232-C Electronic Industries
Association (EIA) level 1 protocol
specification that defines
electrical circuit functions for 25
connector pins. HP provides two
implementationsof this standard:
a 3-pin version for direct
connections up to a distance of
15 meters (50 feet), and a version
which makes use of additional
circuits and can be used for either
modem or direct connections.
RS-422 Electronic Industries
Association (EIA) level 1 protocol
specification implemented by HP
in a 5-pin version which can be
used for direct device connection
up to a distance of 1500 meters
(4000 feet).
security string An
alphanumeric character string
that functions as a password for
dial links. The security string is
used by the dial IP protocol.
serial device Any device that is
attached to and communicates
with a computer by means of a
serial transmission interface.
Terminals, printers, and plotters
are among the devices that
communicate serially with
HP 3000 Series 900 computers.
serial transmission Method of
transferring data in which
characters are transmitted one
bit at a time and received one bit
at a time in the order of
transmission. This transmission
scheme is employed by devices
connected to the system via the
DTC.
session-accepting device A
terminal or personal computer
running in terminal-emulation
mode that is able to establish an
interactive (conversational)
session with an HP 3000
computer. Also referred to as a
logon device.
shared dial A dial link that
provides connection to more than
one remote system, although to
only one at a time.
shared-line access Featurethat
allows two or more HP 3000
Series 900 hosts to use the same
DTC/X.25 Network Access card
on a DTC to access an X.25
network.
SIC Serial Interface Card. Card
installed in the front of the DTC
that acts as an interface between
a corresponding connector card
(CC) and the DTC’s processor.
slaved device A device that
shares the same DTC port as
another device and is connected
to the other device, referred to as
its master, by a cable. The actions
of the slaved device are controlled
by the master device.
SNMP Simple Network
Management Protocol. An
industry standard for managing
networked computers in a
multi-vendor environment.