Using the HP DTC 16RX Manager

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Glossary
binary mode A 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.
block mode A terminal processing mode in which groups, or blocks of data are transmitted all at
once.
bridge A device used to connect LAN segments. Bridges are protocol-transparent and do not
alter the data they receive but simply transmit it to the other network.
broadcast Communication method for sending a message to all devices on a link
simultaneously. Broadcast may be implemented with hardware (for example as in
Ethernet) or with software.
C
configuration 1) The way in which computer equipment is physically interconnected and set up to
operate as a system.
2) The layout of the computer system, including the system table, memory, and
buffer sizes, that tells which peripheral devices are (or can be) connected to the
computer and how they can be accessed.
3) The process of defining the characteristics of a network in software.
configuration files Files containing all the information on a DTC 16RX's configuration. They are
downloaded to the DTC 16RX whenever it is reset or switched on.
CSMA/CD Carrier Sense Multiple Access with Collision Detect, transmission access method
used by the IEEE 802.3 LAN standard.
D
Data communications and Terminal Controller
See DTC.
datagram A self-contained packet that is independent of other packets. It does not require an
acknowledgement and it carries information which is sufficient to route it from the
source device to the destination device.
DDFA DTC Device File Access utilities. A set of HP-UX utilities used by systems and user-
written applications to programmatically access devices attached to DTC ports.
DDP Direct Distribution Panel. A distribution panel that serves as the electrical and
physical interface between a DTC 16RX and up to eight asynchronous devices for
direct connections. See MDP for modem connections.
dedicated printer A printer that can be used only by one host in the network—the one specified in the
destination node name in that printer port's configuration screen.
device-dependent characteristic
A file specification for which modifications are restricted because of the type of
device on which the file is opened. For example, data directed to terminals must have
a blocking factor of one.