Executive Parallel wrap plug for IEEE port

  1  ---  11
  2  ---   6
  3  ---   8
  4  ---   7
  5  ---  13
  9  ---  15
 10  ---  14

            
Executive Serial wrap plugs

modem     printer
  1  ---   1
  2  ---   2
  3  ---   3
  4  ---  20
  5  ---   5
  6  ---   8
 20  -- 4,22
     -- 15,17,24  shorted together