Appendix
FPGA
A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by the customer or designer
after manufacturing: hence field-programmable.
GND
the electrical ground (aka. earth)
GPS
The Global Positioning System (GPS) is a space-based global navigation satellite system that provides reliable location
and time information in all weather and at all times and anywhere on or near the Earth when and where there is an
unobstructed line of sight to four or more GPS satellites.
Hz
The hertz (symbol: Hz) is the SI unit of frequency defined as the number of cycles per second of a periodic signal.
IRIG-B
The Inter Range Instrumentation Group (IRIG) is the standards body of the Range Commanders Council (RCC). They
publish a number of standards: e.g. IRIG timecodes The different timecodes defined in the Standard have alphabetic
designations. A, B, D, E, G, and H.
IRIG-B has a Bit rate of 100 Hz.
LED
A light-emitting diode is a semiconductor light source.
It is used in all modules of the SIRIUS® system to indicate the status of the modules.
LEMO
LEMO is the name of the high quality push-pull connectors that are used for cable
connections: e.g. the power-supply cable and the sync cables of the SIRIUS® system.
The company that produces these connectors is also called LEMO (www.lemo.com)
Microsoft
®
Microsoft
®
Corporation is a public multinational corporation head-quartered in Redmond, Washington, USA that
develops, manufactures, licenses, and supports a wide range of products and services predominantly related to
computing through its various product divisions.
DEWESoft® is a Windows
®
-based application and thus a Windows
®
operating system must be installed on the
measurement PC where DEWESoft® is installed.
see www.microsoft.com
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