RTB_P21

This simple module is a quad NEM 651 socket decoder test board and is part of my growing collection of tools for my DCC based digital model trains. The board has four independent NEM651 sockets and the DCC signal is fed in and out at both ends for daisy-chaining multiple boards. For each, a motor or resistor can be connected externally to enable service mode programming with DCC.

See also

• RTB_P24

User Guides

• User Guide - DE (to be done)
• User Guide - EN (to be done)

Hardware

My PCB layout uses SMD footprints with mainly 0603 parts. With some experience handsoldering is good to use.

PCB

• 2-layer PCB, FR4, 1.6mm
• Dimensions: 80mm x 22mm
• 4x NEM 651 decoder sockets

Kicad

Schematic | Layout | Gerber

Dependency

🟡 Requires my Kicad project library RTB_SamacSys in the same directory tree.

Images

This project is intended for hobby use only and is distributed in accordance with the Apache License 2.0 agreement.