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cardinalnsb(at)aol.com
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 Posted: Wed Feb 16, 2011 11:16 am Post subject: follow up shielded wire/hub question |
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My first question needed to be more specific. My audio panel installation manual shows that the shielded wires are "open" (shield not grounded) at the end where the wires connect to the radio, and the shields are all grounded together at the audio panel.
If I use a "hub" system, where all avionics go in and then out of the hub, do I keep each shield on a separate pin going in and out of the hub, or do I ground all the shields together going into the hub and then start a set of new shielded wires comng out of he hub (open coming out of the hub) and tie all the shields to ground at the audio panel?
Thanks for the help, Skip
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nuckolls.bob(at)aeroelect
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| Posted: Thu Feb 17, 2011 7:40 am Post subject: follow up shielded wire/hub question |
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At 01:50 PM 2/16/2011, you wrote:
| Quote: | My first question needed to be more specific. My audio panel installation manual shows that the shielded wires are "open" (shield not grounded) at the end where the wires connect to the radio, and the shields are all grounded together at the audio panel.
If I use a "hub" system, where all avionics go in and then out of the hub, do I keep each shield on a separate pin going in and out of the hub, or do I ground all the shields together going into the hub and then start a set of new shielded wires comng out of he hub (open coming out of the hub) and tie all the shields to ground at the audio panel? |
Exactly where shields go to ground in small
airplanes is pretty much irrelevant. IF the
shield is connected at both ends and is obviously
a return path for signal or power, then carry
it through the hub on it's own pathway.
If the shield is not a signal/power pathway,
connect to common ground in hub (which still
needs to be carried to shield ground at the
audio panel)
FYI . . . when replying to a message lumped
with others in the 'digest' configuration, please
trim away all non-relevant text from the message.
Bob . . . [quote][b]
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