Karl Cunningham wrote:
On 7/11/2008 12:16 PM, Michael O'Keefe wrote:
Karl Cunningham wrote:
I'm looking for a serial<->ethernet<->serial bridge. It must be
bidirectional and support 8-bit data, only a few Kbytes/sec, to run
over a local network. I know there are hardware devices but this
needs to be CB-compliant so I'm looking for a software solution.
do you REALLY want serial/ethernet/serial or do you want serial
transmitted to another machine on the network, ala serial/IP ?
I guess what I want is serial/ethernet/'virtual serial'. The first end
needs to be on a physical RS-232 port. The other would best be a virtual
serial port in the CentOS machine, ala serial/IP (which I wasn't aware of).
Now that I have the "serial over IP' buzzword (duh!), I have stuff to
check out.
How much of the RS-232 stuff do you need? Do you need just Rx/Tx or do
you need the full blown handshake lines also?
I'm playing around with an old Netgear WGT634U home router that runs
Linux <http://www.openwrt.org>, has serial ports, ethernet ports, and a
mini-PCI slot for the radio. You wouldn't need the radio, so maybe you
could pick one up cheap. The serial ports are Rx/Tx only, no handshaking
and are 3.3 Volts. You would also need a tiny RS-232 converter like the
one here:
<http://www.compsys1.com/workbench/On_top_of_the_Bench/Max233_Adapter/max233_adapter.html>
The above URL may wrap. I have one of these that is built into the hood.
Very convenient.
Other routers like the Linksys WRT54G will work as well.
I'd be willing to help you with this if you want.
Gus
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