BYOC Lazy Sprocket Instructions Manual page 19

FOOT SWITCH SOLDER LUG DESIGNATIONS
Step 8: Insert the foot switch wires into their respective eyelets on the PCB.
You can insert them into the top side and solder on the top side as well. The
solder pads should be large enough (if you are using a soldering iron that
isn't too big) to allow you to do this without burning the PVC coating on the
wires if you are careful. If you do singe the plastic on the wires, it's OK.
It's not going to hurt anything. It's purely aesthetic.
Step 9: Connect the wires at the top end of the PCB to the IN and OUT
jacks. The "out" eyelet will go to the tip of the OUT jack and the "in" eyelet
will go to the tip of the IN jack. Connect the ground eyelet on the left to the
sleeve of the IN jack and the ground eyelet on the right to the sleeve of the
OUT jack. Connect the "ring" eyelet to the ring of the IN jack. See diagram
below.
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