Most storage devices that do not require vision and a brain to read data fall into this category. Electromagnetic data may be stored in either an analog data or digital data format on a variety of media.
Direct Tripwire Alarm - The wire placed across the path is directly connected with the cord, wire or string placed across the particular path. Laser Tripwire Alarm - An invisible laser, typically an infra-red, is used instead of a cord or string.
A conductor used to connect equipment or the grounded circuit of. a wiring system to a grounding electrode or electrodes. Grounding Conductor, Equipment. The conductor used to connect the nonâcurrent-. carrying metal parts of equipment, raceways, and other enclosures to the system grounded.