Specifications

Glossary 137
S
SCPI
Acronym for: Standard Commands for Programmable Instruments
Safety Shroud
A cover for the DUT that protects personnel from possible contact with dangerous voltages on the DUT.
The shroud should be physically connected to a NO (normally Open) safety switch that is closed only
when the shroud is in place. The switch is wired across the two interlock pins on J3 of the Measurement
Control Module. These pins are wired to 1A13 and 1A15 of the ITA.
Self-test
A test executed by an instrument or system on itself to verify the functionality of the instrument or
system.
Sense
See: Current sensing.
Serial Card
A device to allow serial (one wire) communications between computers.
Slot Address
The slot number a VXI module occupies in a single mainframe system. In the case of a two-mainframe
system, the slot addresses for the second mainframe begin at 128 (128 base address + Slot #0).
Stand-off Voltage
The maximum voltage differential an open relay can tolerate without arcing across the contacts.
Switch Handler
Software that enhances Agilent TestExec SL's interaction with a switching module, such as a relay
matrix. When you use a switch handler with a switching module, you can use the Switching
Configuration Editor to define your test system's topology and then use the Switch Path Editor to
conveniently control switch paths during a test.
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