Configuring Systems for Terminals, Printers, and Other Serial Devices (32022-90051)

Glossary 249
Glossary
device name See PAD name.
Dial ID protocol A proprietary
Hewlett- Packard protocol that
provides security checking and
address exchange for dial links.
dial link A connection made
through public telephone lines.
direct-connect device An
asynchronous device that is
connected directly to a DTC
through an RS-232-C or RS-422
cable, with no intervening
communications equipment. Also
referred to as a “local connection.
direct connection Aleasedline,
private line, or other
non-switched link in a network.
direct dial A dial link through
which only one remote node can
be reached.
direct-path branching The
process of directly accessing any
screen in NMMGR by entering a
path name in the Command: field.
The path name must be preceded
by an at sign (@).
download The process ofloading
operating code and configuration
files into the DTC’s memory. The
DTC is downloaded by the
MPE/iX host for LANs using
host-basednetworkmanagement,
and by the PC for DTCs managed
by the OpenView DTC Manager.
driver Software that controls
input/output devices including
NS 3000/iX links.
DTC Datacommunications and
Terminal Controller. The DTC is
a hardware device, configured as
a node on a LAN, that enables
asynchronous devices to access
HP 3000 Series 900 computers.
Terminals can either be directly
connected to the DTC, or they can
be remotely connected through a
Packet Assembler Disassembler
(PAD). The DTC can be
configured with DTC/X.25
Network Access cards and
DTC/X.25 Network Access
software. A DTC/X.25 iX Network
Link consists of two software
modules: the X.25 iX System
Access software (running on the
host) and the DTC/X.25 Network
Access software (running on the
DTC).
DTCCNTRL A command file you
can use to manage DTS
configurations. Using
DTCCNTRL, you can
dynamically implement DTS
changes, automatically add a new
DTC, shutdown/restart DTS, and
manage/dynamically configure
host-based X.25 connections.
DTC 16 HP 2340A product. A
DTC that provides 2 slots for
asynchronous connections with
each slot allowing up to 8 direct
connections or 6 modem
connections, plus an optional X.25
link supporting up to 32 virtual
circuits at speeds of up to
19.2 Kbps.
DTC 16iX HP J2062A product. A
DTC terminal server for HP 3000
systems. It allows up to 16