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66AK2G12: PCIe cable

Mars G
Intellectual 390 points

Part Number: 66AK2G12

Hi,

I have a question about the PCIe cable described on the TI Wiki page below

https://processors.wiki.ti.com/index.php/PCIe_CableMod#Adex_Pre-Built_Cables_without_Power.2FClock

As described on the above page, my customer would like to connect and use Adex Electronics 1-lane cable (PE-FLEX1-G2-MMCX-12-TI1) and SAMTEC PCIE cross-over cable (PCIE-036-0200-EC-EC-85).

However, as far as we can see the four photos on the above page,

Both PE-FLEX1-G2-MMCX-12-TI1 and PCIE-036-0200-EC-EC-85 look like male-male cables, which seems to prevent them from connecting.

Looking at the following catalog of SAMTEC, the male-female cable is PCIE-036-0200-EC-EM-85 instead of PCIE-036-0200-EC-EC-85.

http://suddendocs.samtec.com/catalog_english/pciec.pdf

Is it possible that the description on the wiki is incorrect and PCIE-036-0200-EC-EM-85 is correct?

If the wiki is incorrect, please let me know if there is any problem in connecting and evaluating using PCIE-036-0200-EC-EM-85.

Best Regards,

  • 0
    Guru 13202 points

    Hello!

    The point of that setup was connecting two EVMs with female sockets, thus the cable is with male blades on the both sides.

    I have not used exactly this part, but we were using M-F cable to connect x4 FPGA EVM with blade to x1 socket on K2G EVM.

  • 0
    TI__Genius 9190 points

    Hello,

    in the linked wiki, they are using a Male to Male crossover in conjunction with an extender cable to allow more room.  The TI1 crossover cable will not need to plug into an EC-EC crossover cable.  In the wiki, they are stating that if you use the PE-FLEX1-G2-MMCX-12-TI1 you do not need to modify or use a different cross over cable. 

    If you cannot get the crossover cable that has the "TI1" at the end of the part number then you will need to modify it as they describe in the wiki.