VisuNet XT-9700, User Manual

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VisuNet XT 9700 Series
Glossary
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B Glossary
A –
Ampere, Amps
AC – Alternating Current
Apk – Peak Amperage.
ATEX – Derived from the French term, ATmospheres EXplosibles, it is a directive that applies
to connectors intended for safe operation in and around potentially explosive
atmospheres and was originally a European Union Directive, although it is now
recognized in many parts of the world, including North America.
AWG – American Wire Gauge: A standardized wire gauge system used since 1857
predominantly in the United States and Canada for the diameters of round, solid,
nonferrous, electrically conducting wire.
BUS – A subsystem that transfers data between components inside a computer, or between
computers.
° C – Degrees Celsius (temperature measurement)
Cable Gland – A metal or plastic wire cable pass thru device that seals on the outer cable
sheath to prevent dust and moisture from entering the electrical or instrument
enclosure.
CCW – Counter-clockwise
cfg – Configuration
CU – Copper
CW – Clockwise
DC – Direct Current
EC – European Commission: The executive body of the European Union (EU) responsible
for proposing legislation, implementing decisions, upholding the Union's treaties, and
day-to-day running of the EU.
EDDL – Electronic Device Description Language: Technology used by major manufacturers
to describe the information that is accessible in digital devices.
Ethernet – A system for connecting a number of computer systems to form a local area network
(LAN), with protocols to control the passing of information.
° F – Degrees Fahrenheit (temperature measurement)
FCC – Federal Communications Commission: The FCC regulates interstate and
international communications by radio, television, wire, satellite and cable.
Fuse – A type of low resistance resistor that acts as a sacrificial device to provide overcurrent
protection by interrupting excessive current so that further damage by overheating or
fire is prevented from either the load or source circuit.
HV – High Voltage
IEC – International Electrotechnical Commission: A nonprofit organization headquartered in
Geneva, Switzerland, that develops and publishes standards concerning electrical
technologies. The world’s leading standards organization, the IEC standards reach
over 150 countries.
IECEx – The IECEx is the IEC system for the certification to standards for electrical equipment
for explosive atmospheres.