Piggy Back RS232 Over Ethernet

Discussion in 'Networking & Security' started by BuGaLoU, May 15, 2006.

  1. BuGaLoU

    BuGaLoU [H]ard|Gawd

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    Here is the deal. Where I work we have a ticketmaster application that uses a seperate RS232 network. This means special lines that run to a special little ticketmaster box in my switch room. Needless to say it is a royal PITA when we have to move these computers connected to this special network.

    So to fix this I was hoping there were some kind of RS232 to ether net adapters out there. I know they exist, but I think the solution I need is special. i need an Adapter on the PC side that talks to an adapter on the switch side. So basically the flow would go like this:


    COM Port --> Convertor Box --> Ethernet --> Converter Box --> Com Port on Special Box

    Anyone have any suggestions?
     
  2. moetop

    moetop [H]ard|Gawd

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    Is it realy Ethernet or justr cat5. (meaning is there going to be a ethernet switch in between?)
     
  3. BuGaLoU

    BuGaLoU [H]ard|Gawd

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    Real enternet. Each convertor box should be able to be assigned IP addresses.
     
  4. drizzt81

    drizzt81 [H]ardForum Junkie

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    just CAT-5 may be 'easily' doable with some programmable logic etc. Adding transport and data-link layer to it makes it a lot more difficult. Are you looking for a off-the-shelf solution or would you be willing to build your own? What pricerange are we talking about?

    You could probably get something like an X-board:
    http://www.kontron.com/products/pdproductdetail.cfm?keyProduct=40073&kps=1221&kpc=354

    I am sure that you'll find some form of IP-layer implementation for it and need only to write your own Serial port emulator. You'd use one at each end, encapsulating the Serial port info in an IP-packet sent to the other x-board.

    I am sure that there may be even cheaper options available, maybe this thing:

    http://www.rabbitsemiconductor.com/products/rab2000_tcpip/

    these:
    http://www.netburner.com/products/development_kits.html
    http://www.netburner.com/products/development_kits/serial_to_ethernet_development.html
    seems to be a development platform for exactly what you are looking for: Ethernet to serial converion.

    Another option would be to write a 'virtual serial port (VSP)' driver for Windows (or the OS that you are running on) to install on both the source and destination host directly. The VSP driver would pretend to be the device hooked up locally and redirect the I/O to the destination using IP. Depending on how much knowledge you have when it comes to driver development, this may be the cheapest and most flexible solution, although it would take more CPU involvement.
     
  5. pigster

    pigster [H]ard|Gawd

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  6. moetop

    moetop [H]ard|Gawd

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    I have also seen some terminal servers that support a virtual serial port on the PC side. So you plug the terminal server into the device on the far side and install a virtial serial port on your PC. I will try and find the links for this stuff. I had them, but I cant find them right now.. :( I'll keep looking.

    What operating system are you using?
     
  7. aug1516

    aug1516 2[H]4U

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    Call up the company Digi (http://www.digi.com) and see what they recommend. We have used quite a few of their RS-232 -> Ethernet products with great results.