System Introduction Miracle Intelligent Lighting Control System is successfully developed by Guangzhou Hedong Electronics Co., Ltd (HDL), which has been in the field of lighting control system research and manufacturing for 20 years. Advanced for being provided with international architectural lighting features, the latest  electronic technology and computer technology, Miracle is easy to  connect, simple to manage, and convenient for future extension, and so on. For HDL has cooperated with  international famous companies    in OEM for many years, and it has won ISO9001 Quality Management Certificate, Miracle's design and manufacture are of international high qualiy. Till now there is no any universal bus standard for intelligent lighting control, therefore manufacturers use different standards for their own products. In fact, there are only two bus connection standards: one is low voltage carrier wave (typically 24v-36v); the other is 485 bus (power supply separated from signal). Actually, there are also great differences between the two standards in data transmission rate and bus reliability. And the former standard would be often influenced by current fluctuation in the power wires, which resulted in data transmission rate, reliability and bus efficiency dropping. That is, when the bus device quantity increases, the system may collapse because of the drop. However, Miracle adopts the individual 485 bus standard, which keeps the system bus in the best status. Furthermore, featured with the Miracle's unique software and hardware combined intelligent CSMA/CD technology, the system data transmission rate would perform the best, no matter how many bus devices there are, no matter how long the bus is. Both star type and bus type connection can be contained in the topology of Miracle. So the system shall allow a maximum of 255 partitions, which can be soft patched to a maximum of 254 devices. In a word, theoretically the capacity is 64516. Partitions connect to each other by bus switcher and then access to the Ethernet. Using open and highly extensible protocol, Miracle enables the intelligent lighting system to connect with any other control systems in no- gap, such as BA system, central control system, security and fire protection system, remote status reporting system, stage lighting control system and so on. Miracle Intelligent Lighting Control System can integrate DMX platform devices, music fountain, stage machine, laser lamp, LED and other system, etc to realize one key mode numerous system integrated show.