Author Topic: Suggestions for routing large number of differential traces  (Read 476 times)

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Offline EEjl2020Topic starter

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  • Country: us
Hello all,

I am designing a second iteration of a PCB that is supposed to be essentially a dumb switch that's only purpose is to route signals and have minimal effect on them. My first iteration had only 8 RJ45 ports and supported 10Mbps and 100 Mbps, my second board has 42 ports and has 4 differential signals which means I need 8 differential traces per port, this brings the differential traces to 336 traces. :palm: I'm trying to implement a 40x40 nonblocking crosspoint switch which seems like one of the better options for the high amount of traces I have but that only supports about 5 ports and I was having trouble finding a Crosspoint that supported more traces. I know I can make an array of these crosspoint switches to handle the routing but I wasnt sure if there were better options or suggestions people might have? I also looked into DPDT switches but those dont seem like they would help much. Ive been struggling to figure out what the best option would be and would appreciate any suggestions or help as I dont have a crazy amount of experience desigining PCBs. I would like to avoid the array because the crosspoint I want to use isnt the cheapest. Thanks in advance for any help I'm kind of stuck as of now and would appreciate any and all advice.
 


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