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  • 1.  A5120-24G-POE+ EI JG236A Bootloop

    Posted Jan 30, 2020 06:26 PM

    I picked up a 24 port A5120 model JG236A and when I powered it on it seems to have a bootloop issue. I took a video.

    https://youtu.be/EBstzdApUJU that repeats every few seconds.

    I switched to a heaver gauge power cord as the seller provided cord may not have been sufficient but that made no difference. I had intended it to be a home office switch powering my network and then POE security cameras.

    I also do not have a console cable as I was hoping to just find and telnet into a DHCP active port.

    I have an 8 port OfficeConnect 1820 and love it.. but wanted to expand.

     

    Any suggestions? Or did I get a DOA item.


    #jg236A
    #Bootloop


  • 2.  RE: A5120-24G-POE+ EI JG236A Bootloop

    Posted Feb 03, 2020 12:26 AM

    Hello,

    Since you dont have the console cable, i would suggest you to rasie RMA with your provider 

    Or log a support case with HPE they may help you to break the boot loop , but here you still need console cable to login boot menu on the switch. 

     



  • 3.  RE: A5120-24G-POE+ EI JG236A Bootloop

    Posted Feb 03, 2020 08:59 AM

    Hello, what is the HP part number for the cable? I cannot seem to find the exact part number and see three or four HP rj-45\db9 cables.

    Is there a document that shows the pinout of both the RJ-45 end and the DB9 end?

    Is there a USB console cable solution? (Or a usb\serial adapter known to work?)



  • 4.  RE: A5120-24G-POE+ EI JG236A Bootloop

    Posted Feb 03, 2020 07:05 PM

    Hi,

    There is no part number for console cables ,  please find below link for switch Installation guide and refer page number 28 for more info

    https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c02641900



  • 5.  RE: A5120-24G-POE+ EI JG236A Bootloop

    Posted Feb 03, 2020 07:31 PM

    Yup.. Read that manual.. There is no mention of the pinout. Just that there is a cable and to plug it in..

    Here are what I found are part numbers for console cables.. What ones are compatible?

    5066-3090

    5184-1894

    5188-3836

     Even found this.. NOTE: Console Cable 5184-1894, 5182-4794, and F1047-80002 have the same pin
    out. However, the 5183-7247 uses a different pin out and does not work with
    all networking products and may be problematic.

     

    There are even pinout documentation.. Just not for the A5120 series..

    https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c00992717

    https://support.hpe.com/hpesc/public/docDisplay?docId=emr_na-c02597611-1

    I also determined the cause of the boot loop was a failure of the middle fan in the power supply.

     

     



  • 6.  RE: A5120-24G-POE+ EI JG236A Bootloop

    Posted Feb 03, 2020 08:05 PM

    Hello ,

    The part  number you have provided for different devices , So i suggest you log a support case with HPE to get correct part number