Table of Contents
Advertisement
G
Glossary Of Terms
G-4
• Load Card
A C-sized card designed to fit in the Switch/Load Unit that
provides switching for the various loads, and provisions for
either internal load mounting, or connections for external
load mounting. Load cards provide a two level card ID; card
type, and load configuration ID.
• Load Switching
A load that can be switched in or out of a power supply
circuit on command.
• Module
As used in this manual, specifically refers to a
VXlbus-compatible module instrument.
• MOV
Metal Oxide Varistor - An electronic component whose
characteristic resistance changes dramatically at a certain
predetermined voltage.
• NC
Normally Closed switch contacts. A Form C (Single-Pole,
Double-Throw) switch has two possible states. The default or
un-powered, state is its "normal" state. The two terminals on
the switch are therefore called "normally open," or "normally
closed."
• NO
Normally Open switch contacts. See NC.
• Open All Relays (OAR)
A command that immediately opens all the relays, both
columns and rows, on a module.
• Optical Isolator
A digital device that electronically isolates a signal from its
source by converting the input signal to a light source,
usually laser or LED, and reconverts the signal to an
electronic signal using a photoelectric device.
• Remote Sensing
Monitoring the voltage output of a power supply can be done
either at the inputs of the Switch/Load Unit (locally) or at
the inputs of the UUT (remotely). Remote sensing guarantees
the voltage value set will be applied at the sense point, and
losses in the system will be compensated for.
E6198B Switch/Load Unit User Manual
Advertisement
Table of Contents
