Automatic Frequency Switch — Automatic Frequency Switch, a system that is comparable with RDS function for radio. When a program is transmitted from multiple Transmitters on multiple frequencies [MFN] this AFS system will automatically select the best signal. However if… … Wikipedia
Automatic Equipment Identification — (AEI) is an electronic recognition system in use with the North American railroad industry. Consisting of passive tags mounted on each side of rolling stock, as well as active trackside readers, AEI utilizes RF technology to identify railroad… … Wikipedia
Automatic Block Signal — Basic Automatic Block Signals = Automatic Block Signal, or ABS, systems consist of a series of signals that govern blocks of track between the signals. The signals are automatically activated by the conditions of the block beyond the signal.… … Wikipedia
Automatic test pattern generation — ATPG (acronym for both Automatic Test Pattern Generation and Automatic Test Pattern Generator) is an electronic design automation method/technology used to find an input (or test) sequence that, when applied to a digital circuit, enables testers… … Wikipedia
Time signal — These automatic signal clocks were synchronized by telegraphy in 1905 before the widespread use of radio A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day. Contents 1 Audible… … Wikipedia
Railway signal — Not to be confused with Railway signalling. A signal is a mechanical or electrical device erected beside a railway line to pass information relating to the state of the line ahead to train/engine drivers. The driver interprets the signal s… … Wikipedia
1ESS switch — The Number One Electronic Switching System, the first large scale Stored Program Control (SPC) telephone exchange or Electronic Switching System in the Bell System, was introduced in Succasunna, New Jersey, in May 1965[1]. The switching fabric… … Wikipedia
Panel switch — The panel switching system was an early type of automatic telephone exchange, first put into urban service by the Bell System in the 1920s and removed during the 1970s. The Panel and Rotary systems were developed in parallel by Bell Labs before… … Wikipedia
Continuous Automatic Warning System — For the gun, see Heckler Koch HK CAWS. For the wrestling video game creation mode, see Create a wrestler. The Continuous Automatic Warning System (CAWS) is a form of cab signalling and train protection system used in Ireland to help train drivers … Wikipedia
Strowger switch — The Strowger switch, also known as Step by Step or SXS , is an early electromechanical telephone switching system invented by Almon Brown Strowger. It is a specialized version of a stepping switch.HistoryAccording to legend, Almon Strowger was… … Wikipedia
General Railway Signal — Infobox Company company name = General Railway Signal Company company company type = dependent site within ALSTOM since 1998 foundation = 1904 location city = Rochester location country = New York key people = products = Equipment and services… … Wikipedia
