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glossary:glossary_n [2013/04/09 06:03]
dpharris [NMRAnet]
glossary:glossary_n [2019/04/07 19:37] (current)
Bob Vetterlein [NPN]
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 [[start|Return to main Glossary index]] [[start|Return to main Glossary index]]
  
 +===== NAND ===== 
 +NAND [[logicgates#​nand|Logic Gate]]\\ ​
 ===== Negative ===== ===== Negative =====
  
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-The National Model Railroad Association in the USA is the largest organization devoted to the development,​ promotion, and enjoyment of the hobby of model railroading. The NMRA was founded in 1935 in Milwaukee, Wisconsin in order to provide a service to the hobby of model railroading. It is responsible for defining the standards for DCC control systems. +The National Model Railroad Association in the USA is the largest organization devoted to the development,​ promotion, and enjoyment of the hobby of model railroading. The NMRA was founded in 1935 in Milwaukee, Wisconsin in order to provide a service to the hobby of model railroading. It is responsible for defining the standards for DCC control systems. ​ See: [[http://​www.nmra.org|NMRA wesite]]
  
 ===== NMRAnet ===== ===== NMRAnet =====
  
-An MRR layout control bus being developed to complement DCC and other traction methods and to control accessories. ​ It is traction and transport agnostic.  ​ +An MRR layout control bus being developed to complement ​[[glossary_d#​DCC Digital Command Control|DCC]] ​and other traction methods and to control accessories. ​ It is traction and transport agnostic.  ​See: [[http://​nmranet.org|NMRAnet website]].
  
 ===== NOR ===== ===== NOR =====
 +NOR [[logicgates#​nor|Logic Gate]]
  
 Nor is a gate term used to describe logic components. ​    \\ NOR gate (NOR = Not OR)     \\ This is an OR gate with the output inverted, as shown by the '​o'​ on the output. ​    \\ The output Q is true if NOT inputs A OR B are true: Q = NOT (A OR B)     \\ A NOR gate can have two or more inputs, its output is true if no inputs are true. Nor is a gate term used to describe logic components. ​    \\ NOR gate (NOR = Not OR)     \\ This is an OR gate with the output inverted, as shown by the '​o'​ on the output. ​    \\ The output Q is true if NOT inputs A OR B are true: Q = NOT (A OR B)     \\ A NOR gate can have two or more inputs, its output is true if no inputs are true.
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 See also: [[:​glossary:​glossary_t#​transistor|Transistors]] See also: [[:​glossary:​glossary_t#​transistor|Transistors]]
  
 +=====NV=====
 +__N__ode __V__ariable a [[glossary:​glossary_c#​cbus|CBUS]] term referring to a value which controls the overall behaviour of a node. For example in the CANACE8C module, taking an input low generates an On event, when that input returns high this normally generates an Off event. This behaviour can be modified by one of the NVs where a set(1) bit within the NV will cause the associated Off event generation to be suppressed.
glossary/glossary_n.1365487407.txt.gz · Last modified: 2014/11/11 13:27 (external edit)