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1. F4GRX Sébastien (f4grx@chaos.social)'s status on Wednesday, 15-Jan-2025 00:40:46 JST F4GRX Sébastien

   in reply to

   • Marsh Ray

   @marshray Hello, I have not done all changes yet, but I have reorganized the board to keep all interesting circuits on the same side of the box. This can allow for having several modules on the same front plate. Decoupling is next. I still dont love the long VCC line to the sfp cage, IDK how "legal" it is to have a vcc line under the differential pairs.

   • polprog68k likes this.
   • F4GRX Sébastien (f4grx@chaos.social)'s status on Wednesday, 15-Jan-2025 00:40:47 JST F4GRX Sébastien

     in reply to

     • Marsh Ray

     @marshray yep ofc I need decoupling on the transceivers.

     power will come either from USB or the XT30 to a LF33 LDO.

     Rout done

     unused gates: are they really useful? OK, I can add test points.

     other SFP would be hard to install, that would need more SMAs.

     We can make a dual channel version on a 80x100 pcb later.

     I also have plans for a kind of optical clock distribution with several outputs to serve different devices from a single clock signal.

   • Marsh Ray (marshray@infosec.exchange)'s status on Wednesday, 15-Jan-2025 00:40:49 JST Marsh Ray

     @f4grx Maybe
     - decoupling capacitors on VCC near
     U1 and U2
     any external supply connections

     - A place to add an R inline in Rx out

     - Pads to connect the unused gates of U1 and U2 later if needed

     - even a not-populated place for another (output-only?) SFI module