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Components at the PCB #6

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BigBaldGeek opened this issue Oct 18, 2020 · 1 comment
Open

Components at the PCB #6

BigBaldGeek opened this issue Oct 18, 2020 · 1 comment

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@BigBaldGeek
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Hi! I am trying to build a PiTelex and am curious if I need the SMD parts at the bottom. The partlist seems a bit.. incomplete. I got most stuff covered from the Gerber files and pictures, but not too sure about the bottom.

Thanks!
@devnuller
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These are bridges to enable/disable specific functionality, not SMD pads.

SJ1+SJ2: when bridged bypass the relay (no Relais)
SJ3: when bridged disables the receive function (no-RXD)
SJ4: when bridged enables the transmit function

SJ4 is a bit tricky, as you must have it bridged in order to be able to transmit from the Raspberry PI to a telex machine, whereas all others disable functionality. The other tricky bit is that SJ4 is not shown in the PDF schematic diagram (https://github.com/fablab-wue/piTelex.supplement/blob/master/PCB/pyTelex.pdf)

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@devnuller @BigBaldGeek