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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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March 24th, 2015
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Junior Member
Join Date: Mar 2015
Posts: 11
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RS485 Tranceiver IC's RX Pin
Dear All,
Here is my first post, I have some question about RDM. I bought a RDM controller from Euchips(RDM-100) to test my DMX-RDM Slave. The RDM controller can't discover my DMX-RDM Slave, and I use oscilloscope to monitor the RS485 Tranceiver IC's RX Pin(the Controller) ,I find out that, even with nothing connect to the RDM controller, the RX Pin of the controller is not steady, the voltage changing as ....High-Low-High-Low....., and with a fixed frequency. Is it normal? |
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