DSX321G 16.000MHZ DSX321G 16.384M8PF DSX321G 16.384MHZ DSX321G 16M DSX321G 16MHZ DSX321G 16MHz 12PF 20ppn DSX321G 18.432MHZ DSX321G 18.432MHz 12PF 20PPM DSX321G 19.200MHZ DSX321G 19.2M