NEM652 8 Pin to JST Harness (For ZN218 Decoders) (3 Pack) NEM652 8 Pin to JST Harness (For ZN218 Decoders) (3 Pack) A pack of three NEM652 8 pin to JST harnesses for DCCconcepts ZN218 decoder. This harness is exclusive to this decoder. Click to view other Decoder Harnesses in our range.