Glossary
Glossary–4
VX1411A IntelliFrame Mainframe Instruction Manual
IACK Daisy Chain Driver
The circuit that drives the VMEbus Interrupt Acknowledge daisy chain line
that runs continuously through all installed modules or through jumpers
across the backplane.
ID-ROM
An NVRAM storage area that provides for non-volatile storage of diagnostic
data.
Instrument Module
A plug-in printed circuit board, with associated components and shields, that
may be installed in a VXIbus mainframe. An instrument module may
contain more than one device. Also, one device may require more than one
instrument module.
IntelliGuides
The card guides used in the VX1411A IntelliFrame Mainframe. The card
guides on the bottom of the mainframe shut off airflow when no modules are
installed in the respective slots.
IntelliFrame
mainframe
A family of VXI mainframes from Tektronix that automatically direct
airflow to the installed modules, have an autoconfigure backplane, have
adjustable rack kits and cable trays (optional), and can be upgraded.
Interface Device
A VXIbus device that provides one or more interfaces to external equipment.
Interrupt Handler
A functional module that detects interrupt requests generated by Interrupters
and responds to those requests by requesting status and identity information.
Interrupter
A device capable of asserting VMEbus interrupts and performing the
interrupt acknowledge sequence.
IRQ
The Interrupt ReQuest signal, which is the VMEbus interrupt line that is
asserted by an Interrupter to signify to the controller that a device on the bus
requires service by the controller.
Local Bus
A daisy-chained bus that connects adjacent VXIbus slots.
Local Controller
The instrument module that performs system control and external interface
functions for the instrument modules in a VXIbus mainframe or several
mainframes. See Resource Manager.
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Содержание VX1411A IntelliFrame VXIbus Mainframe
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Страница 50: ...Specifications Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
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