Had a customer ask if we could supply a 16 to 1 hub
RS-232 hub. He said there was only one manufacturer
he know of that made one.

I did a lot of searching and did not find anything
other than something incredibly expensive by BlackBox
corporation.

Found plenty of USB and ethernet to multiple seral port
converters of course, but that isn't it. Computers may
not even be involved.

Seen anything like that? Doesn't even matter yet whether
it is "party line" or "code operated switch" operation.
I would just like to find anything.

Gary Peek
Industrologic, Inc.

"Gary Peek" <mylastname@mycompanyname.com> wrote in message
news:4427E064.2050801@mycompanyname.com...
We made a 24 way RS422 to 1 RS232 hub. It broadcasts out and we rely on the
slave devices not to transmit back at the same time. It's a horrible and
expensive thing designed 6 years ago but if you really want one I'll forward
a request to the sales department to see if it is worth making new ones.

Peter

I have an expandable 4-port RS-232 multiplexer which can be easily
daisy-chained to 16 channels or more. Baud rates up to 115K.

http://www.cescom.com.au/ce0063/
(email me if you'd like the full datasheet)

Perhaps of interest to you there is also a newer product coming very
soon that can be mixed and matched for various multiple interfaces
including Ethernet/USB/232/422/485/VGA/SD/DAQ/MODEM.

*Peter*
http://www.pbjtech.com/


Gary Peek wrote:

"Peter Jakacki" <peterjak@tpg.com.au> wrote in message
news:4427ebcc$1@dnews.tpgi.com.au...
Wow, have you seen that page yourself?
Full of Microshaft rubbish. Unreadable. Apparently made with.. nah....
tsss..

content="text/html; charset=windows-1252">
<meta name="ProgId" content="Word.Document">
<meta name="Generator" content="Microsoft Word 9">
<meta name="Originator" content="Microsoft Word 9">

Meindert

I know I know, I did it quite a while ago as a test page and it's still
up there. Since then I have used Nvu as a HTML editor, is that OK???

*Peter*

Meindert Sprang wrote:

or may bot be shared by my employer Atmel Nordic AB
"Gary Peek" <mylastname@mycompanyname.com> skrev i meddelandet
news:4427E064.2050801@mycompanyname.com...

There is a standard for UART multiplexing called GSM 07.10.
The source sends packets of information to a target which contains source
and destination.
The target can then send/receive data on multiple serial ports.
I think adding some micros on an SPI bus would be a good solution.
4 micros w 4 UARTs and a larger host would probably do the job.

--
Best Regards,
Ulf Samuelsson
This is intended to be my personal opinion which may,

"Peter Jakacki" <peterjak@tpg.com.au> wrote in message
news:4427f40b$1@dnews.tpgi.com.au...
Dunno. I am using Arachnophilia mysef (the last version before they turned
it into a java monster), which is just a plain HTML editor with syntax
coloring a buttons to drop-in table frameworks and that sort of stuff. No
WYSIWYG but then you get nice compact HTML. I always shiver when I see the
code those full blown packages spit out :-)

Meindert

Gary Peek wrote:
I designed a high-speed RS-232/RS-422 hub where I worked some years ago
that used '2313 AVRs as UARTs interfaced via SPI (software on the AVRs)
to a mid-range PIC. Someone else wrote the software (it was really his
project). I think it's still in production. I'm not sure if it could be
extended to 16 inputs, though.

Leon

Meindert Sprang wrote:
Dreamweaver didn't seem too bad when I played with it some time ago.

Leon

On 2006-03-27, Gary Peek <mylastname@mycompanyname.com> wrote:

If you can't find what you're looking for, the company I used
to work for makes serial hubs with up to 32 ports. They're
generally accessed via Ethernet using either TCP/IP connections
to individual ports or using "virtual COM/tty" drivers. But,
they're user-programmable, so you could modify the firmware to
do something else.

http://www.comtrol.com/products/cata...?product=dmrts

IIRC, another customer was going to tweak the firmware to make
them act as a sort of logical "Y" cable, but I don't know if
they went ahead with that project.

--
Grant Edwards grante Yow! Someone in DAYTON,
at Ohio is selling USED
visi.com CARPETS to a SERBO-CROATIAN

"Gary Peek" <mylastname@mycompanyname.com> wrote in message
news:4427E064.2050801@mycompanyname.com...
How exactly will it get used?
- Tx to multiple units: no problem
- Rx from multiple units: wired-OR'ed?

Steve
http://www.fivetrees.com

Steve at fivetrees wrote:
Unknown yet. I have an email to the customer asking, but I wanted
to see what was out there for starters. They monitor RS-232 streams
with their software, so wire-ORing reception from multiple inputs
is a likely choice.

Gary Peek
Industrologic, Inc.

Gary Peek wrote:
As long as they don't talk at the same time.

How about 16 I/O ports wired to RS-232 drivers.