rs232 is susceptible to any kindof electrical or ground interference in any system-

absolutely not recommended to use rs232 for more than a few feet. unless you have boxes which are able to transmit the signal over long distances using a differential or balanaced signal

Quote Originally Posted by Trench117 View Post
Hi,

I have a v4 main and backup system programmed on presets, triggered by MSC. Currently both main and backup are outputting identical serial to the projectors at the same time. Once possibly twice I have had a missed shutter open cue on one of the units. I have heard this could be because of the dual serial output.

Any thoughts? Ideally would turn serial on and off as part of the main/backup switch.

T