Fixed DCC decoder quad DPDT relay outputs by ESU SwitchPilot Extension – #397-51801

SwitchPilot can be augmented with the SwitchPilot Extension Module: Plugged in at the side of the SwitchPilot, it offers four relay-driven outputs, used for switching potential-free loads, or for polarizing the frog; the ideal supplement for tricky circuitry.

Can be used with computer interfaces to communicate from your DCC throttle to your layout computer control program.