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BrickHouse Security User’s Guide
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BrickHouse Security User’s Guide
Glossary (cont.)
LED: An abbreviation for “light emitting diode,” it’s an elec-
tronic device that lights up when electricity passes through
it. LEDs are good for displaying images because they can
be relatively small, and they do not burn out. However, they
require more power than LCDs.
Lux: a unit used to measure illumination. As a point of refer-
ence, an average office with standard lighting has a Lux rating
between 320-500 lux. A night with a full moon in a cloudless
sky without any “light pollution” from nearby cities would be
near .25 lux.
Glossary (cont.)
Micro SD Card: Micro SD cards, also known as TransFlash, are
smaller versions of SD memory cards. As electronic devices
are becoming smaller Micro SD cards are becoming more
and more common in the marketplace. Currently, the highest
capacity of micro SD card is 32 GB.
NTSC: the standard analog video format used throughout
North America and much of South America. Some other areas
of the world use formats called PAL or SECAM.
PAL: the standard analog video format used in much of Eu-
rope, Asia, and other parts of the world. Some other areas use
formats called NTSC or SECAM.