For DCC operation remove the DNDP and replace with a decoder. Lets you run locos as DC or DCC.
ESU 51956 dummy plug for adapter board for LokSound L with pin headers NEW in...
Heljan 19850003 OO Gauge 8 Pin PCB with Dummy Plug
Plug for ECOS, Lokprogrammer and ESU boards DCC 2-WAY CONNECTOR PLUG
2PACK NCE power plug for Power Cab connection board (PCP) 2-Way Track Plug NEW
2PACK NCE power plug for Power Cab connection board (PCP) 2-Way Track Plug
2PCS NCE power plug for Power Cab connection board (PCP) 2-Way Track Plug