96 Rev. 2
Glossary
IEEE Institute of Electrical and Electronics Engineers
I/O
Input/Output; The hardware and associated protocol that implement
communication between information processing systems and/or
devices. Inputs are the signals or data received by the system or
device, and outputs are the signals or data sent from it.
IP
Internet Protocol; when used with “address”, refers to a numerical
Internet address
kG kilogauss: a magnetic field unit of measurement
LED
Light-Emitting Diode; a semiconductor device that emits light when
energized - used for visual status indication
LHe Liquid Helium
Max Maximum
Min Minimum
MSDS
Material Safety Data Sheet - provides workers and emergency
personnel with procedures for handling or working with a specific
substance in a safe manner and includes information such as physical
data, toxicity, health effects, first aid, reactivity, storage, disposal,
protective equipment, and spill-handling procedures.
RG-59/U
A specific type of coaxial cable, often used for low-power video and RF
signal connections, with a characteristic impedance of
75 ohms.
R
lead
Electrical circuit lead or wiring resistance
RS-232
RS-232 is a long-established standard and protocol for relatively low
speed serial data communication between computers and related
devices; originally established for teletypewriter communication.
SCPI Standard Commands for Programmable Instruments
VVolts
VA Volt-amperes (V x I); a unit of electrical reactive power
V
lead
Voltage (I x R) developed across circuit lead or wiring resistance due to
current flow
V
m
Magnet voltage
V
s
Power supply voltage
Term Meaning
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