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Longframe/Bantam Patchbays and phantom power...
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<blockquote data-quote="Steve Anderson" data-source="post: 4999" data-attributes="member: 630"><p>Hi All,</p><p></p><p>Doing an install in a school at present, and they have requested a patchbay for stage to desk patching.</p><p></p><p>If we go this way, some of it will be normalled, and to that end I have sourced a patchbay (ADC <a href="http://www.clarkwire.com/ProPatchUmbilicalAudioBroadcastJackfields.htm" target="_blank">BJF403-4MKIVSN</a>) with sleeve normals bought out as well as the tip and ring... but my real question is, what happens when phantom power is turned on and something gets patched?</p><p></p><p>If it were a quarter inch plug with the diameter of T R and S the same, a mic could get 48V across pins 2 and 3 as the plug is inserted. I don't have one to test, but does the narrower (smaller diameter) tip and ring on the Bantam/Longframe style plugs inhibit this from happening? And what happens to a condensor, electret or oherwise, if this does happen?</p><p></p><p>Cheers,</p><p>Steve.</p></blockquote><p></p>
[QUOTE="Steve Anderson, post: 4999, member: 630"] Hi All, Doing an install in a school at present, and they have requested a patchbay for stage to desk patching. If we go this way, some of it will be normalled, and to that end I have sourced a patchbay (ADC [URL="http://www.clarkwire.com/ProPatchUmbilicalAudioBroadcastJackfields.htm"]BJF403-4MKIVSN[/URL]) with sleeve normals bought out as well as the tip and ring... but my real question is, what happens when phantom power is turned on and something gets patched? If it were a quarter inch plug with the diameter of T R and S the same, a mic could get 48V across pins 2 and 3 as the plug is inserted. I don't have one to test, but does the narrower (smaller diameter) tip and ring on the Bantam/Longframe style plugs inhibit this from happening? And what happens to a condensor, electret or oherwise, if this does happen? Cheers, Steve. [/QUOTE]
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