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| RDM Physical Layer/Hardware Discussion Discussion and questions relating to the physical or hardware layer of RDM. |
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May 25th, 2008
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Senior Member
Join Date: Jan 2008
Posts: 102
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Cable shield connection questions
Hello,
It is pretty cear from the DMX spec that a transmitter must have <20Ohm between shield and chassis and a receiver (non isolated) must have 100Ohm. This is cool BUT what if a device can be a RDM controller AND a RDM responder, depending on the mode? Is it expected to switch in and out a 100Ohm resistor? If it needs to be switched, is there a way to do it without a relay? Kind regards Bernt |
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