E1.20 RDM (Remote Device Management) Protocol Forums

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-   -   Discovery Response Preamble (http://www.rdmprotocol.org/forums/showthread.php?t=72)

prwatE120 January 20th, 2007 12:22 AM

Discovery Response Preamble
PLEASE remember that a controller is required to cope with a variable number of preamble bytes in responses to Discovery commands.

This is cleary stated in the last paragraph of section 7.5.


... The controller shall be able to process response packets with 0-7 bytes of preamble

I have now encountered two controllers that could not cope with this!

This would make them NON-COMPLIANT - but might only show up when they were used in conjunction with one or more layers of splitters.

If you are interested I now have special test responders that can vary the number of preamble bytes returned ...


Peter Willis

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