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DDS730  buffer RDM/DMX or DEMULTIPLEXER,in the  RDM/DMX buffer can be used as DMX amplifier compatible with RDM,each port is optoinsulated and can control 32 device and 600mt cable in according with standard USITT DMX specification. In case one of the port is in short circuit or one connected device is on failure the remaning other ports can work anyway.  

DEMULTIPLEXER use 4 port (port1-4) as input DMX and use port number 5 as output, in case from port 1-4 the DMX signal have same data streaming the DEMULTIPLEXER send to port 5 the last port that have DMX data stream changed. This can be usefull for several DMX generator and one DMX port, for example in case of use of 4 DMX keyboard generator and one DMX controller, connecting the 4 Keyboard to port 1-4 if one of the keyboard change data stream the data will be sent to port5 as priority, same happen in case of another keyboard will be used.