[mdlug] Serial port use to connect to a network switch - Ubuntu 14 .04

gib at juno.com gib at juno.com
Fri Mar 13 21:46:08 EDT 2015


I'm wondering if Microcenter would have one.  I would guess they don't since it is rare these days.

---------- Original Message ----------
From: Brian Brodsky <brianbrodsky at ameritech.net>
To: MDLUG's Main discussion list <mdlug at mdlug.org>
Subject: Re: [mdlug] Serial port use to connect to a network switch - Ubuntu 14 .04
Date: Fri, 13 Mar 2015 17:15:05 -0400

Or if you can find a break out box somewhere.

On 03/13/2015 03:53 PM, Jeff Hanson wrote:
> Look for a wiring diagram for the cable or target port and use a continuity
> tester/ohmmeter/multimeter to test it.
>
> On Fri, Mar 13, 2015 at 3:40 PM, gib at juno.com <gib at juno.com> wrote:
>
>> Yeah, that could be my problem.  I just found it in a filing cabinet.
>> How can I test it?  It's a console cable.
>>
>> ---------- Original Message ----------
>> From: Jeff Hanson <jhansonxi at gmail.com>
>> To: "MDLUG's Main discussion list" <mdlug at mdlug.org>
>> Subject: Re: [mdlug] Serial port use to connect to a network switch -
>> Ubuntu 14.04
>> Date: Fri, 13 Mar 2015 14:44:28 -0400
>>
>> Also verify the cable is functional.
>>
>> On Fri, Mar 13, 2015 at 2:43 PM, Jeff Hanson <jhansonxi at gmail.com> wrote:
>>
>>> Try ckermit or gkermit.  Make sure the data rate, stop bits, parity, and
>>> flow control (XON/XOFF or RTS/CTS) are correct.
>>>
>>> User needs to be a member of dialout group.
>>>
>>> On Fri, Mar 13, 2015 at 1:59 PM, gib at juno.com <gib at juno.com> wrote:
>>>
>>>> I attempting to connect a laptop which has a serial port /dev/ttyS0 to a
>>>> HP 5820-24XG-SFP  switch.   I can't get a connection.  Tried many
>> options.
>>>> An application, cutecom, looks like it would do the job but it won't
>>>> respond.
>>>>
>>>> I'm able to do the following command and not get an error: sudo ls >
>>>> /dev/ttS0.
>>>>
>>>> The command:  "dmesg  | grep tty" shows the port is active.
>>>>
>>>> This is using a older laptop that I bought from Tony.  It's a Dell D830.
>>>>
>>>> I'm running Ubuntu 14.04.
>>>>
>>>> I'm using a console cable (9 pin to RJ45).
>>>>
>>>> I've been trying to use putty since I'm told that will work. Won't
>>>> respond.
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