DCCWiki, a community DCC encyclopedia.
| DCC Terms
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| DCC Components
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Accessory Decoder, Automatic Phase Inversion, Booster, Command Station, Computer Interface, Consists, DCC Ready, Decoder, Digital Packet, How Digital Command Control Works, Multifunction Decoder, Power Supply, Speed Steps, Throttle, Throttle Network
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| General
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Address Partitioning, Analog Control of Model Railroads, Bus, Cab, Can Motor, Command Control, Coreless Motors and DCC, DCC, DCC in a Box, Distributed Power, Frog Juicer, Jump Port, LCC, Layout Command Control, LocoNet, Locomotive, Multiple Unit Consisting, National Model Railroad Association (NMRA), Original Equipment Manufacturer, Phase, Power Bus, Programming Track, Quarter Test, Serial User System Interface - SUSI, Slots, Sound, Standard Dimensions, Starter Set, Turnout Motors, Turnouts, Voltage Drop, Wi-Fi Throttle, XpressNet, Zero Stretching
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| Mobile decoder
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Analog Conversion, Back EMF, Decoder Connection Method, Digitrax Transponding, Ditch Lights, Dither, Driver Quartering, Energy Storage, FX Lighting, Functions, High-Frequency Decoders, Kick Start, Lighting Effects, Momentum, Multifunction Decoder Assisted Consisting, Multifunction Decoder Programming Lock, NMRA Connector, NMRA DCC Plug for Multifunction Decoders, Power Conversion, Pulse Width Modulation, Silent Drive, Snood
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| Non-DCC
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Ammeter, Continuous Load, Digital Multimeter, FRED, Heat Shrink Tubing, Magic Smoke, Motor, RJ12/RJ25 Connector, Rail Size, Rule 17, Series Resistor, Stall Current
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Primary DCC Components
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Summary: FRED or Flashing Rear End Device is a device mounted at the rear of the train, in lieu of a caboose. The dumb FRED is equipped with a battery powered strobe.
Advanced smart FREDs transmit speed and air line pressure via radio to a receiver in the cab. The receiver, SBU (Sense and Brake Unit, Canada) or HOT (Head-of-train, US) is often referred to as WILMA by railroaders.
FREDs can be modelled using SMT LEDs.
Also see FX_Lighting
Want to build your own FRED? See Flashing Rear-End Device For DCC Systems for a schematic, and many other DCC projects.
Other Uses of the Term
Fireman Fred is a series of sound effects available on Tsunami Decoders by Soundtraxx. Sounds such as shovelling coal, injectors, or water being dumped into the tender are available either by a function key or automatically depending on the situation and programming.
