glossary:glossary_l
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glossary:glossary_l [2015/07/11 18:47] – [Latching] add link to example product dpharris | glossary:glossary_l [2021/11/07 18:30] – [Layout Control Bus] minor edit JohnFletcher | ||
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[[start|Return to main Glossary index]] | [[start|Return to main Glossary index]] | ||
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===== Latching ===== | ===== Latching ===== | ||
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Latching can apply to both mechanical devices and electronic circuits. | Latching can apply to both mechanical devices and electronic circuits. | ||
- | An example of mechanical latching would be a push on / push off switch, [[https:// | + | An example of mechanical latching would be a push on / push off switch, [[wp>Latching_switch|see here.]] See also description of a [[wp>/ |
- | An example of an electronic latch would be [[https:// | + | An example of an electronic latch would be [[wp>Flip-flop_(electronics)|a flip-flop]] or bistable circuit.\\ |
A standard relay may be made self latching by supplying a current path for the coil through one of its normally open contact sets. | A standard relay may be made self latching by supplying a current path for the coil through one of its normally open contact sets. | ||
- | ===== Layout | + | |
+ | ===== LCB ===== | ||
+ | |||
+ | ==== Layout Control | ||
+ | |||
+ | The old way of connecting up a model railway layout was for every point and signal to have a set of wires back to the control box where switches were located for the operator to use. The idea of a layout control bus is to have a small number of wires (the bus) carry the instructions around the layout. Several different ways of doing this have been devised and some of them are described on the Knowledgebase. Using modern technology the switches can be implemented in a lot of different ways or even be replaced by automation. | ||
+ | |||
+ | ===== LCC ===== | ||
{{ : | {{ : | ||
- | [[http:// | + | [[: |
===== Lead free ===== | ===== Lead free ===== | ||
+ | This is a change in the content of solder. Lead free solder is generally recommended due to Health and Safety considerations, | ||
- | This is a change in the content of solder. Lead free solder is generally recommended due to Health and Safety considerations, | + | ===== LED ===== |
+ | A Light Emitting Diode (LED) is a type of diode that emits light when an electric current is passed through it. LEDs can be manufactured to cover the visible spectrum as well as the IR and UV spectrums. LEDs come in many colors, sizes and styles, and some include multiple diodes internally allowing more than one color to be produced. | ||
- | ===== LED ===== | + | Most LEDs, when manufactured, |
- | Light Emitting Diodes (LEDs) emit light when an electric current passes through them | + | |
- | \\ {{: | + | \\ {{: |
- | \\Circuit symbol: | + | |
- | \\ {{: | + | \\ [[https:// |
- | \\ [[http:// | + | |
\\ [[http:// | \\ [[http:// | ||
===== LENZ ===== | ===== LENZ ===== | ||
+ | A German [[glossary: | ||
- | A German dcc system and decoder manufacturer | + | =====LiFo===== |
+ | __L__ast __i__n __F__irst __o__ut, data buffer where the most recent entry is the first to be retrieved. Commonly referred to in programming as a ' | ||
===== Lighting decoder ===== | ===== Lighting decoder ===== | ||
+ | A [[glossary: | ||
- | A DCC decoder made especially for lights for a loco or carriages. | + | ===== Logic ===== |
+ | In a model railway it is a way to do step by step sequence to make the train do what you require. From an electronic component perspective, | ||
- | ===== Logic ===== | + | \\ [[http:// |
- | In a model railway it is a way to do step by step sequence to make the train do what you require. | ||
glossary/glossary_l.txt · Last modified: 2024/04/19 07:11 by rule55