It has a few purposes. It fills in the 1" gap made by 2 m-class
modules. It's an internal power connection.
And it's a voltage-responsive blinky light - patch a CV, trigger or what
have you.
Christopher Jacob Recording Device wrote:
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>
> What's the black strip in the centre of all the M-boats do? It has a
> single banana jack and looks very mysterious. : 0
>
> Chris
>
> --
> "War will end when people refuse to fight"
> --Anonymous
>
> __._,