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A5120-24G-POE+ EI JG236A Bootloop

 
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Occasional Collector

A5120-24G-POE+ EI JG236A Bootloop

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.

5 REPLIES 5
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HPE Pro

Re: A5120-24G-POE+ EI JG236A Bootloop

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. 

 


I work for HPEAccept or Kudo
Highlighted
Occasional Collector

Re: A5120-24G-POE+ EI JG236A Bootloop

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?)

Highlighted
HPE Pro

Re: A5120-24G-POE+ EI JG236A Bootloop

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


I work for HPEAccept or Kudo
Highlighted
Occasional Collector

Re: A5120-24G-POE+ EI JG236A Bootloop

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.

 

 

Highlighted
HPE Pro

Re: A5120-24G-POE+ EI JG236A Bootloop

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 


I work for HPEAccept or Kudo