Glossary

System Hierarchy

The tree structure of the commander/servant relationships of all devices in the system at a given time. In the VXIbus structure, each servant has a commander. A commander may also have a commander.

Test Monitor

An executive routine that is responsible for executing the self tests, storing any errors in the ID-ROM, and reporting such errors to the Resource Manager.

Test Program

A program, executed on the system controller, that controls the execution of tests within the test system.

Test System

A collection of hardware and software modules that operate in concert to test a target DUT.

TTLTRG

Open collector TTL lines used for inter-module timing and communication.

VXIbus Subsystem

One mainframe with modules installed. The installed modules include one module that performs slot 0 functions and a given complement of instrument modules. The subsystem may also include a Resource Manager.

Word Serial Protocol

A VXIbus word oriented, bi-directional, serial protocol for communications between message-based devices (that is, devices that include communication registers in addition to configuration registers).

Word Serial Communications

Inter-device communications using the Word Serial Protocol.

WSP

See Word Serial Protocol.

10-MHz Clock

A 10 MHz, ±100 ppm timing reference. Also see CLK10.

100-MHz Clock

A 100 MHz, ±100 ppm clock synchronized with CLK10. Also see CLK100.

488-To-VXIbus Interface

A message based device that provides for communication between the IEEE-488 bus and VXIbus instrument modules.

Glossary±8

VX1410A & VX1420A IntelliFrame Mainframe Instruction Manual