How about this one?Paulbb1 wrote:Can we start a list of RS422 to USB converters that work with the Sony SW or the one talked about here in forum? Or does the Wiki have a list?
http://www.usconverters.com/index.php?m ... cts_id=280
How about this one?Paulbb1 wrote:Can we start a list of RS422 to USB converters that work with the Sony SW or the one talked about here in forum? Or does the Wiki have a list?
RussellHltn wrote:I don't think there's any need for a ground line in RS-422.
The RS-422 is just for control, right? You didn't mention how well the control channel worked. How were you connecting the video? If the video needs a ground, it would be better for that line to provide the ground, not an auxiliary connection.michaelfish wrote:Tried running a loop using CAT5 with four wires sending and the other four wires for return. The picture has bad artifacts. When I switched to shielded CAT5, looping just as before but using the shield for the ground, the artifacts disappeared.
Bottom line: there is a need for the ground line in RS-422.
Video was connected via S-Video baluns. Whenever the CAT5 cable (RS-422 control) was connected to the camera, the picture degraded. The only change made (which fixed the picture problem) was to replace CAT5 with shielded CAT5 and use the 9th wire (shield) as the ground.RussellHltn wrote:The RS-422 is just for control, right? You didn't mention how well the control channel worked. How were you connecting the video? If the video needs a ground, it would be better for that line to provide the ground, not an auxiliary connection.
Please help me to understand.RussellHltn wrote:...or the ungrounded controller (or worse, a controller connected to a different ground) was the cause.
michaelfish wrote:but how is the controller grounded?