Littfinski LDT WD-DEC-G Watchdog-Decoder MM/DCC, Item 010013 finished module in a case, Dim.: 93 x 80 x 32mm, for the effective installation protection: supervision of the pc-supported digital model rail road. Function: The WatchDog decoder shall be connected between the command station and the first booster. In case the pc will not send every 5 seconds a normal switch command to the WatchDog decoder, the WD-DEC concludes that the model rail way is out of control of the pc. To prevent the non-controlled running of trains the WatchDog decoder disconnects the boosters from the central unit. The rails will be voltage-free and all trains will stop. Connection to the boosters directly via the 5-poles boosterbus (Märklin-Digital, Intellibox, TWIN-CENTER). Is there no 5-poles booster-bus available at the command station (e.g. Lenz Digital plus), the connection to the boosters will be done via the screw-clamps on the WD-DEC, power supply by screw-clamps for model railroad transformer AC 14-18V

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