Multiple serial consoles via null modem cable

[Charles Sprickman]

On Jan 12, 2010, at 12:04 PM, Boris Samorodov <bsam at ipt.ru> wrote:

> On Tue, 12 Jan 2010 17:14:44 +0200 Marin Atanasov wrote:
>
>> I'm thinking about the following situation - 1 system acting like a  
>> host
>> with a serial port hub, each port of the hub is connected to a  
>> different
>> machine on sio0, using null modem cables.
>
> Along with milti-io serial cards we use multi-usb serial
> converters, such as SUNIX UTS7009P (7 USB to serial adapter):
> http://www.sunix.com.tw/it/en/LinkCraft/UTS4009P_UTS7009P.htm
>

I need to look it up when I'm in front of a real computer, but there  
are a number of reasonably priced multport USB to serial converters  
out there.  We have a 16 port model that's rack mounted and cost  
around $400.  It works better many of the more expensive multiport  
serial cards. Paired with conserver, it's a really nice solution.   
Conserver's logging is great...

I've used old dedicated terminal servers in the past and they can be a  
pain to deal with.  The newer ones are probably nicer, but are also  
lots of money.

C

> -- 
> WBR, Boris Samorodov (bsam)
> Research Engineer, http://www.ipt.ru Telephone & Internet SP
> FreeBSD Committer, http://www.FreeBSD.org The Power To Serve
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