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5500G-EI doesn't answer commands via hyperterminal

gruzzz88
Occasional Visitor

5500G-EI doesn't answer commands via hyperterminal

I need to configure ip-address on my 3com 5500G-EI via console port, but it doesn't answer on my commands.

After rebooting the switch it shows me this:



Starting......

******************************************************************

* *

* SuperStack 4 Switch 5500G-EI 24-Port BOOTROM, Version 4.00 *

* *

******************************************************************

Copyright (c) 2004-2006 3Com Corporation and its licensors.

Creation date : May 19 2006, 14:01:11

CPU type : BCM1122

CPU Clock Speed : 400MHz

BUS Clock Speed : 33MHz

Memory Size : 128MB

Mac Address : 0016e0f78000



Press Ctrl-B to enter Boot Menu... 0

Auto-booting...

Decompress Image................................................................

................................................................................

................................................................................

................................................................................

................................................................................

.OK!

Starting at 0x80020000...



User interface aux0 is available.

Press ENTER to get started.



I can do nothing after that. Hyperteminal is configured according to GettingStarted manual (19200-8-1-N, vt100). I don't want to reset switch to default.

Do you have any ideas why switch doesn't response?

8 REPLIES
rbaffert
Advisor

Re: 5500G-EI doesn't answer commands via hyperterminal

Hi,



this could be a material problem, but let's check a few things :



- is your serial port on your pc fully functionnal ? did you test your pc

with another switch ?

- if you can try, take the latest putty

(http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html)

and use its serial mode to check this



If you try your computer with another switch and get an answer, this

could mean you 5500G is broken... but no worries, it has a next

business day advance hardware replacement included :)

Romain BAFFERT

Cabling Partners
Romain BAFFERT

Cabling Partners
gruzzz88
Occasional Visitor

Re: 5500G-EI doesn't answer commands via hyperterminal

I tried Putty 0.60 - all the same.

I didn't try my com-port with another switch, don't have such an opportunity. But i tried it with ups - it works.

Switch is used to be OK, because three months ago another guy configured this switch, everything was ok. After that switch worked by himself,nobody touched it.



I have an idea that something wrong with console cable,because 3com cable is lost and we made new one according to pin-out from manual. Can the problem be with this cable?



Hardware replacement is no good in my situation :)

In my organization it is called "smart switch",we don't have anything better... :(

rbaffert
Advisor

Re: 5500G-EI doesn't answer commands via hyperterminal

Now that you say that about your console cable, I guess there is quite a big chance that the problem is your cable !



I have thousands of them (delivered with every switch) but I don't think this is an easy thing to deliver them to you :) you can still order them from 3Com, SKU # 4042967 for 15 $





Romain BAFFERT

Cabling Partners
Romain BAFFERT

Cabling Partners
gruzzz88
Occasional Visitor

Re: 5500G-EI doesn't answer commands via hyperterminal

It is strange cable is working only one-side...

Well,maybe you can tell me how can I restore default settings - I'll try to configure ip-address using DHCP.

I didn't find any button on front and back panels.

Is there any kind of jumper inside the switch?

rbaffert
Advisor

Re: 5500G-EI doesn't answer commands via hyperterminal

Hi,



No, this can be totally possible, as it's different wires that transmit Tx and Rx :)



No, there is no jumper or anything for factory reset. You will need a cable for sure. Where are you situated ?



You have to know that a cisco cable would probably work on your switch.

Romain BAFFERT

Cabling Partners
Romain BAFFERT

Cabling Partners
gruzzz88
Occasional Visitor

Re: 5500G-EI doesn't answer commands via hyperterminal

We checked the pin-out of our cable - it corresponds the manual.

We have cisco cable, its pin-out is absolutely different. Is it OK to use this cable? I consider it can 'kill' the port, doesn't it?

I am situated in Russia, Altai Region, Barnaul. I think it's too far away :)







rbaffert
Advisor

Re: 5500G-EI doesn't answer commands via hyperterminal

Hi,



no, you won't kill your switch with a bad cable :) except if you plug it to a

power outlet :)



Just try the cisco cable, maybe the pinout you got was mistaken. I'm not

sure if cisco cable works but give a try !





Romain BAFFERT

Cabling Partners
Romain BAFFERT

Cabling Partners
gruzzz88
Occasional Visitor

Re: 5500G-EI doesn't answer commands via hyperterminal

It works!!! :8|:

So, 3com manual tells lie?

Thanks for you advises! You helped me a lot.