Ethernet Adapter Installation and Support Guide

Glossary
Ethernet Adapter Installation and Support Guide—425684-003
Glossary-3
ADAPTER object type
types of cable that can connect any of the six 50-pin WAN ports to one of the
supported electrical interfaces (RS-232, RS-449, X.21, or V.35).
ADAPTER object type. The Subsystem Control Facility (SCF) object type for all adapters
attached to your system.
address space. The memory locations to which a process has access.
ADE. See application development environment (ADE).
adjacent SP. A service processor (SP) that is directly connected through the ServerNet
fabrics to the enclosure of a specified SP.
administrator. (1) For an HP NonStop™ system, the person responsible for the installation
and configuration of a software subsystem on a NonStop node. Contrast with operator.
(2) For an IBM system, the person responsible for the day-to-day monitoring and
maintenance tasks associated with a software subsystem on an IBM node. (3) For a
UNIX system, the owner of /dev/console. The administrator is responsible for the
installation and configuration of all hardware and software within a node.
ADP. See Automated Data Processing (ADP).
ALLPROCESSORS paragraph. A required paragraph in the CONFTEXT configuration file
that contains attributes defining the HP NonStop™ Kernel operating system image for
all system processors. The ALLPROCESSORS paragraph follows the optional
DEFINES paragraph.
alternate path. A path not enabled as the preferred path. An alternate path can become a
primary path when a primary path is disabled.
alternating current (AC). An electric current having a waveform that regularly reverses in
positive and negative directions. North American electrical power alternates 60
times/second (60 hertz). Contrast with direct current (DC).
amperage. Current-carrying capacity, expressed in amperes.
ampere (A). The unit of electrical current or rate of flow of electrons. One volt across one
ohm of resistance causes a current flow of one ampere. A flow of one coulomb/second
equals one ampere.
ANSI. The American National Standards Institute.
API. See application program interface (API).
appearance side. The side of a system enclosure that contains, behind a door, disk
customer-replaceable units (CRUs) and power monitor and control unit (PMCU) CRUs.
The appearance side is the side opposite the service side. System enclosures are
typically arranged so that the appearance side is the most visible side. See also
service side.