My 4 axix board from Hobbycnc does not have any connector to home and limit pins. My board was bought back behind 2004. I use it without any home or limit switches till now that I upgrade my router. On my original instructions is stated that the pins 10,11,12,13 and 17 are available for that purpose but I can't find a connector or any indication that they are there. Please help me find these pins on the board. I am attaching some pics so you can have a better idea of what I am saying. Thanks for any help..Attachment 292492