Tam Valley Depot HFJ003U Hex Frog Juicer

The Hex Frog Juicer from Tam Valley Depot is a versatile, DCC, auto polarity switcher for up to 6 connections.

As the name implies its primary design function was to automate frog polarity setting on 6 live frog points but the outputs can also be configured in pairs to deal with reversing loops, wyes, crossovers or turntables. In fact any other situation where track polarity must be switched to avoid shorts.

Installation is simple and the unit can handle DCC system and booster outputs up to a maximum of 10 Amps. 

See here for all informtion https://www.tamvalleydepot.com/images/Hex_Frog_Juicer_Manual_v2.1.pdf