RS232 Development Board

Hi All ,

Does any one know an off the shelf (and cheap) development board with
3 RS232 ports?

Thanks in advance for any help.

Rate

On Sep 17, 3:11 pm, ratemonotonic <niladri1...@gmail.com> wrote:

> Does any one know an off the shelf (and cheap) development board with
> 3 RS232 ports?

You've asked this question a dozen times at least. If you have not yet
received a satisfactory answer then build one.

ratemonotonic wrote:

> Hi All ,
> 
> Does any one know an off the shelf (and cheap) development board with
> 3 RS232 ports?

Get an old PC.

VLV

On 17/09/2007 ratemonotonic wrote:

> Hi All ,
> 
> Does any one know an off the shelf (and cheap) development board with
> 3 RS232 ports?
> 
> Thanks in advance for any help.
> 
> Rate

A PIC16F84 and three MAX3110E. Can't get much cheaper than that.

-- 
John B

"ratemonotonic" <niladri1979@gmail.com> wrote in message 
news:1190056305.597740.203820@19g2000hsx.googlegroups.com...
> Hi All ,
>
> Does any one know an off the shelf (and cheap) development board with
> 3 RS232 ports?
>
> Thanks in advance for any help.
>
> Rate
>

The question doesn't make sense to me. What would the 3 RS232 ports be 
connected to?

If you are referring to a low cost MCU development board that has three 
bi-directional RS232 ports, and allows you to practice RS232 communications 
with either C or assembly code and also has a series of output LED's for 
easy debug...then the answer is 'no' I don't know of any.

Thomas 

ratemonotonic wrote:
> Does any one know an off the shelf (and cheap) development board with
> 3 RS232 ports?

I thought I saw one of the ARM boards at Olimex that has 3 RS232 ports.
Some time ago, but go check.

On 2007-09-17, Vladimir Vassilevsky <antispam_bogus@hotmail.com>
wrote:

|-----------------------------------------------------------------------|
|"ratemonotonic wrote:                                                  |
|                                                                       |
|> Hi All ,                                                             |
|>                                                                      |
|> Does any one know an off the shelf (and cheap) development board with|
|> 3 RS232 ports?                                                       |
|                                                                       |
|Get an old PC."                                                        |
|-----------------------------------------------------------------------|

An old PC would have one RS232 port instead of three of them.

On Sep 18, 12:24 pm, Colin Paul Gloster <Colin_Paul_Glos...@ACM.org>
wrote:

> |> 3 RS232 ports?                                                    

> |Get an old PC."                                                    

> An old PC would have one RS232 port instead of three of them.

An old PC would have ISA, EISA, VLB and/or PCI slots, in addition to
USB, any of which would provide a route to add additional RS232 ports.

Additionally, any truly old PC would much more likely have two RS232
ports, not one.

Colin Paul Gloster wrote:

> On 2007-09-17, Vladimir Vassilevsky <antispam_bogus@hotmail.com>
> wrote:
> 
> |> Does any one know an off the shelf (and cheap) development board with|
> |> 3 RS232 ports?                                                       |

> |Get an old PC."                                                        |
> 
> An old PC would have one RS232 port instead of three of them.

????

An old PC has at least two RS-232 ports, and you can easily add another 
two. Having more then four COM ports on the old PC is possible although 
it is not as trivial. However you can get a newer PC and enjoy up to 16 
USB to RS232 dongles.


Vladimir Vassilevsky
DSP and Mixed Signal Design Consultant
http://www.abvolt.com

>Hi All ,
>
>Does any one know an off the shelf (and cheap) development board with
>3 RS232 ports?
>
>Thanks in advance for any help.
>
>Rate

The MOD5270 dev kit has three uarts, two  with RS-232 level shifters, one at TTL levels.
http://www.netburner.com/products/development_kits/network_development.html

If you don't need the Ethernet the MOD5213 has the same without the ethernet.
http://www.netburner.com/products/development_kits/embedded_development.html

Paul

CTO Netburner