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12-25-2014 04:17 PM
12-25-2014 04:17 PM
3com Superstack 3 4500 No console
I have had this switch for quite awhile but recently decided to finally set it up instead of just using it as a basic switch. I built a cable like the manual shows and am able to see the switch boot up in hyperterminal. I try and hit ctrl B but nothing. When it is done booting and says hit enter, the login prompt does not come up. I am getting no response from the switch. I jumpered pin 2 and 3 on the rj45 and ran a comm test and I can see that I am sendng and receiving just fine so I know the PC is working correctly. I am out of ideas. I even looked on the system board for a reset jumper but still nothing.
I am running Window 8.1 with a hyperterminal program. I have tried other terminal emulators with the same result. I also tried the ctrl shift - like the older switches use.
Thanks for any help
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01-05-2015 02:49 PM
01-05-2015 02:49 PM
Re: 3com Superstack 3 4500 No console
Speed?
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01-07-2015 04:44 PM
01-07-2015 04:44 PM
Re: 3com Superstack 3 4500 No console
Manual says 19200. I can try slower.
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01-07-2015 05:11 PM
01-07-2015 05:11 PM
Re: 3com Superstack 3 4500 No console
I seem to remember the 3COM switches using 19200, that's probably correct, unless somebody reconfigured it to a different speed...?
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01-09-2015 04:02 AM
01-09-2015 04:02 AM
Re: No console 3com Superstack 3 4500
Hi,
might be a faulty cable, I've tried that a few times, where I see all the output from the switch fine, but I can't send anything to the switch. I changed cable, and everthing worked fine.
a google on "3com 4500 configuration guide" will result in documents (3Com Switch 4500 Family Configuration Guide)
e.g
http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c02581736-1.pdf
confirming the console settings as (page 17):
19200
8,N,1
No flowcontrol
Regards
Region Midtjylland