HP 40290-60006 - RS-232C connector panel (Standard) - With seven direct connect 3-pin ports and one modem connect 25-pin port Retail
HP 40290-60004 - RS-422 connector panel (Option 105) - With seven cirect connect 5-pin ports and one modem connect 25-pin port Retail
HP 5181-2085 - Direct distribution panel (DDP) - Rack mountable panel with eight 25-pin RS-232C or RS-423A direct connect ports Retail