NCE Auto Switch

Prevents accidental programming of ALL locos on your track when using Program Track mode.

Converts the 2 wire output of a basic DCC sytem to a four wire output.

One pair for your main railway and the other to a dedicated programming / service track.

Automatically disconnects your main line when in Program Track mode (does not affect Program on Main).

Compatible with ALL DCC systems such as DigitraxTM Big Boy,Empire Builder and Bachmann EZ-CommandTM