EDAC 516 Rack and Panel Connector with Backshell. From EDAC, this 516 series rack and panel connector comes with a protective back shell, a guide pin and connecting jack screws. The connector housing is designed to use female and male contacts, which are available separately. Available in this Range. ; Stock No. < 910-8383') 910-8383/ is a 56 way Rack and Panel Connector Housing with a Top Entry Back Shell, Guide Pin and Jack Screws ; Stock No. < 910-8386') 910-8386/ is a 56 way Rack and Panel Connector Housing with a Side Entry Back Shell, Guide Pin and Jack Screws