The Open Lighting Project has moved!
We've launched our new site at www.openlighting.org. This wiki will remain and be updated with more technical information.
We've launched our new site at www.openlighting.org. This wiki will remain and be updated with more technical information.
A RDM Transceiver Qualification Tester
From wiki.openlighting.org
Link: http://www.goddarddesign.com/driver_gts.html
'Goddard Design' is proud to introduce an important test tool for anyone designing or verifying a new E1.20 (RDM) design. Our RDM Driver Qualification Test Set simplifies the required driver tests.
If you are designing an RDM device, the selection of the line driver is not as simple as it once was. Just because an integrated circuit is labeled as a EIA485 driver does not mean that it is appropriate for RDM use. Electrical requirements have been added to increase the reliability of the protocol. For the purposes of E1.20 (RDM) the line transceiver IC and any bias components are jointly considered to be the line driver, and together must be qualified to drive the EIA485/E1.20 line.