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

gib at juno.com gib at juno.com
Sat Mar 14 22:03:55 EDT 2015


Sounds like another good one to try.

---------- Original Message ----------
From: Charles Ulrich <charles at bityard.net>
To: mdlug at mdlug.org
Subject: Re: [mdlug] Serial port use to connect to a network switch - Ubuntu 14.04
Date: Fri, 13 Mar 2015 23:53:29 -0400

Good old GNU screen works fine as well:

   screen /dev/ttyUSB0 115200

That's what I use to connect to the serial console of various boards via 
a USB<->TTL serial cable. The screen man page has options for byte 
length, flow control, etc under the section "WINDOW TYPES". To exit the 
session, kill the window with 'Ctrl+a' then 'k'.

Thanks,
Charles

On 03/13/2015 11:06 PM, Michael ORourke wrote:
> What I use is "PuTTY for Linux", which is really handy because you can
> setup a profile and assign it device /dev/ttyS0 along with the speed,
> etc...
> My laptop does not have a serial port, so I use a USB to 9pin Serial
> adapter, and when I plug it in, I check dmesg which tells me it is
> ttyUSB0 and I setup my profile accordingly.  Also, PuTTY for Linux, has
> the same look and feel as the version for Windows that we all know and
> love.  :-)
>
> -Mike
>
>
> On 3/13/2015 1:59 PM, 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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