Dual connector printed circuit board assembly and method

A method of providing a printed circuit board assembly for mounting connectors having different pin spacing and enabling electronic coupling to a plurality of commoning conductors to permit combining different subsidiary boards to a main board comprising:

• providing a first main board having a group of at least four rows of holes, said group of at least four rows of holes being arranged in an alternating set of different holes spacing patterns, including a first row of holes and a third row of holes, with the first row of holes and the third row of holes having the same first lengthwise spacing of holes, and including a second row of holes and fourth row of holes, with the second row of holes and fourth row of holes having the same second lengthwise spacing of holes, the second lengthwise spacing of holes being different from the first lengthwise spacing of holes, said first row of holes respectively having a first set of outer conductors and a first set of inner conductors, each inner conductor of said first set of inner conductors connecting to a nearest hole on the second row of holes said third row of holes respectively having a second set of inner conductors, each inner conductor of said second set of inner conductors connecting to a nearest hole in the fourth row of holes, and said fourth row of holes respectively have a second set of outer conductors;
• providing connectors having a group of at least two rows of pins, including a first row of pins for input and a second row of pins for output, said provided connectors having a third lengthwise spacing along the first row of pins and along the second row of pins to allow the pins to be inserted into appropriate ones of said rows of holes on said first main board;
• and
• attaching said provided connectors to said appropriate rows of holes on said main board.