NixTrainz Decoder Buddy V1B for 21PNEM-8 Decoders The Decoder Buddy was developed for the 8 output decoders and includes duplicate outputs on the motherboard for frame mounted lights. The upgraded V1Bs are the replacement for the V1. It is easily identified by the NixTrainz logo in the oval on the top of the motherboard. This mother board does not include the 21-Pin Decoder. This mother board requires soldering. This printed circuit board is NOT INTENDED FOR USE IN A DC SYSTEM. However, if the decoder you are using supports DC operation it should work. The mother board includes: One 21 Pin Decoder receptacle Two pairs of track input pads One pair of motor input pads V1B, in the line of six pads by the small connector board a “W” pad for the control wire of a three wire stay alive and the customary U+ and GND pads used for all stay alives V1B “W” pad is associated with AUX7 Two pairs of speaker pads in parallel by side 8 lighting outputs on a separable “small connector board” Lighting outputs A5, A6 and a U+ are replicated on the “motherboard” on the V5B in the line of six pads by the small connector board