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 From:  Wayne Fiori <dev9null at gmail dot com>
 To:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] console over modem?
 Date:  Mon, 18 May 2009 21:50:42 -0700
The rule of thumb is 15m (or 50ft) before you start to loose line
rate. The best way to go is a DB-9 to RJ45 adapter. Use a straight
ethernet cable and do all the pinouts on the adapter
(http://www.commdevices.com/pdf/null-modem-rj45-db9-pinout.pdf)
--
=Wayne


On Mon, May 18, 2009 at 9:37 PM, Lee Sharp <leesharp at hal dash pc dot org> wrote:
> David Burgess wrote:
>>
>> If I understood you you're saying I should just construct a really
>> long null modem cable using cat5. Interesting.
>>
>> My searches aren't turning up anything by Rob Whitney on the topic,
>> but I'll keep looking. Anybody have any pointers on building a 15m
>> serial cable, perhaps from cat5 or cat6? I guess I could use the
>> charts here
>> (http://www.zytrax.com/tech/layer_1/cables/tech_rs232.htm#rj45)
>> to match the pinouts on the db9.
>
> How about this?
> http://www.amazon.com/RJ45-Db9-Serial-Connector-Converter/dp/B00006BBTJ
>

> have no clue on the distance limitations, however.
>

>
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