JXDH-6503C is a new compact (1RU only) chassis and cost-effective QAM modulator, JXDH-6503C has 1 modules, 1 1000Mbps IP inputs, 1 SPF input, the RF output supports 16QAM~256QAM modes. The JXDH-6503C has very convenient management interface, the user can complete all operation access through the Ethernet port on device.