Littfinski LDT BTM-SG-F Booster Keep Separation Module, Item 780502 finished module without casing, Dim.: 86 x 76mm, for a secure electrical separation of Booster Current Circuits for all digital formats of the Digital-Professional-Series, each booster supplies current for an own rail section, the rail sections have to be isolated against each other by means of separation sections, a comprehensive protection at the separation section can be achieved only by installing a complete isolation independently if a common layout ground has been installed or both digital poles at the separation section are separate isolated, with this wiring will get the switch-over track, which is situated between two booster current circuits as separation point, the digital current supply from one of the two boosters only. Corresponding to the driving direction will be the digital current supply to the Switch-Over track automatically switched to the competent booster circuit under the travelling train, the Booster Keep Separation Module BTM-SG will monitor the direction of a train between two isolated track sections, this isolated track sections are a so called Sensor-Track with an optimal length of 5 to 20 cm, between the two Sensor-Tracks will be the Switch-Over track, this Switch-Over track has to have at least the length of the longest train on the layout, the Booster Keep Separation Module BTM-SG is able to switch a Digital Current of up to 8 Ampere

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