DavidMil Posted August 24, 2021 Share Posted August 24, 2021 The other day someone had asked about a SIO coupler. I had been kicking around the idea off and on for some time. Anyway, that motivated me to send off my file to ExpressPCB and here is the final outcome : DavidMil 7 Quote Link to comment Share on other sites More sharing options...
Gavin1968 Posted August 24, 2021 Share Posted August 24, 2021 Curious, why the resistor? Quote Link to comment Share on other sites More sharing options...
_The Doctor__ Posted August 24, 2021 Share Posted August 24, 2021 (edited) double trace jump and single trace jump on the 2 sided PCB, could have been routed another way but to what affect. Edited August 24, 2021 by _The Doctor__ 1 Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted August 24, 2021 Share Posted August 24, 2021 Ah, so it's not really a resistor, just a 0-ohm jumper? Quote Link to comment Share on other sites More sharing options...
Mathy Posted August 25, 2021 Share Posted August 25, 2021 (edited) Hello David I don't know much about electronics, but wouldn't this eliminate the need for the 0 Ohm resistor? Sincerely Mathy Edited August 25, 2021 by Mathy Quote Link to comment Share on other sites More sharing options...
DavidMil Posted August 25, 2021 Author Share Posted August 25, 2021 There is always room for improvement. The 'zero ohm resistor' is really just a piece of wire with the insulation left on it. I will modify my drawing to reflect this change. Thank you Mathy! David 1 Quote Link to comment Share on other sites More sharing options...
xrbrevin Posted August 25, 2021 Share Posted August 25, 2021 why not make a "version 2" hub with multiple sockets? Quote Link to comment Share on other sites More sharing options...
Sikor Posted August 25, 2021 Share Posted August 25, 2021 @xrbrevin maybe because exist lotharek's splitter. My Super SIO Splitter also exist: PCBs are ready, unfortunately now is covid time and case are not ready yet. Sometimes is only extension needed (1:1). I don't know one: why @DavidMil PCB is that large? But I think, that he has enclosure for it. Quote Link to comment Share on other sites More sharing options...
DavidMil Posted August 25, 2021 Author Share Posted August 25, 2021 You people are over working this. I did this just as an answer to a question, not to try and make money. The few pennies that I would make from selling these would not even cover the cost of gasoline or shipping materials. And my time is much more valuable to me! This was designed as a simple coupler to connect SIO cables, not as any fancy splitter. DavidMil 5 Quote Link to comment Share on other sites More sharing options...
+Larry Posted August 26, 2021 Share Posted August 26, 2021 The definition of a camel -- a horse designed by a committee. ? Quote Link to comment Share on other sites More sharing options...
moonlight_mile Posted August 26, 2021 Share Posted August 26, 2021 How about putting a switch on it to turn on/off the device connected? Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted August 26, 2021 Share Posted August 26, 2021 Could the traces all be straight through on the PCB if one SIO socket was on the opposite side of the PCB? (ugly, but curious if my assumption is correct) Quote Link to comment Share on other sites More sharing options...
mozzwald Posted August 26, 2021 Share Posted August 26, 2021 After seeing this thread yesterday, I finally assembled a dual receptacle breakout board that I mentioned here a while back. Boards arrived early August but been very busy. This is similar to the FujiNet connectors but using new bigger better pins. The board also supports having a plug on the 'front' instead of dual receptacle. 9 Quote Link to comment Share on other sites More sharing options...
ivop Posted August 26, 2021 Share Posted August 26, 2021 22 hours ago, Sikor said: Sometimes is only extension needed (1:1). I don't know one: why @DavidMil PCB is that large? But I think, that he has enclosure for it. Yes, I guess. It could be 50% smaller, and if routed correctly probably without a "3rd" layer with jumper wires. Nevertheless a nice project! ? Quote Link to comment Share on other sites More sharing options...
BillC Posted August 26, 2021 Share Posted August 26, 2021 4 hours ago, mozzwald said: The board also supports having a plug on the 'front' instead of dual receptacle. How would that work? Male and female connectors have mirrored pinouts. Quote Link to comment Share on other sites More sharing options...
mozzwald Posted August 26, 2021 Share Posted August 26, 2021 58 minutes ago, BillC said: How would that work? Male and female connectors have mirrored pinouts. Notice in the pictures above, the 'front' receptacle is up side down. This makes the pins match up between the 2 receptacles. 1 Quote Link to comment Share on other sites More sharing options...
DavidMil Posted August 27, 2021 Author Share Posted August 27, 2021 12 hours ago, Nezgar said: Could the traces all be straight through on the PCB if one SIO socket was on the opposite side of the PCB? (ugly, but curious if my assumption is correct) Yes, you are correct Nezgar. Ugly, but that would work and make the job of running all the traces look more uniform without so many traces going back and forth on the top and bottom of the PCB. In fact you could get away with a much smaller single sided PCB if you did that. Me personally, I would want a box to conceal that though. David 1 1 Quote Link to comment Share on other sites More sharing options...
DavidMil Posted August 27, 2021 Author Share Posted August 27, 2021 11 hours ago, ivop said: Yes, I guess. It could be 50% smaller, and if routed correctly probably without a "3rd" layer with jumper wires. Nevertheless a nice project! ? I thought that size only mattered to women? David 2 Quote Link to comment Share on other sites More sharing options...
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