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What's this pigtail on this old Power Expander 4804?

Old 06-01-2011, 04:32 PM
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Default What's this pigtail on this old Power Expander 4804?

I bought a used plane and it has a copyright 2004 Smart-Fly power expander (model 4804). There is also a number "3404 Revision A" on the device.

There is a pigtail coming out from the unit that is not labelled. This pigtail is terminated with a standard male servo connector. What's this for? It has no power coming out of it even when the unit is powered.

Is there a manual for this product?
Old 06-02-2011, 07:25 AM
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Default RE: What's this pigtail on this old Power Expander 4804?

Its for DSC. File attached.


ORIGINAL: DMcQuinn

I bought a used plane and it has a copyright 2004 Smart-Fly power expander (model 4804). There is also a number ''3404 Revision A'' on the device.

There is a pigtail coming out from the unit that is not labelled. This pigtail is terminated with a standard male servo connector. What's this for? It has no power coming out of it even when the unit is powered.

Is there a manual for this product?
Attached Files
File Type: pdf
Db84958.pdf (69.1 KB, 176 views)
Old 06-02-2011, 02:36 PM
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Default RE: What's this pigtail on this old Power Expander 4804?

Thanks, that's just what I needed. It's a very intuitive device anyway, but the pigtail had me stumped. And the manual explains that only the primary four servo outputs are individually buffered. This is good info and not obvous from the device itself.

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