FAQ:AR1 with Digitrax Zephyr Xtra
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When using an AR1 with the DCS51 Zephyr Xtra, set Option Switch 18 to closed (OPSw18='c').
Increasing this setting to 500 milliseconds allows the AR1 to change the track phasing before the DCS51's booster reacts to the momentary short circuit when the train passes over the reversing section's gaps.
Addition trimming may be required using the Tunable Trip Current (TTC) potentiometer on the AR1's circuit board.