TG Posted July 8, 2007 Report Share Posted July 8, 2007 Has Anyone succesfully implemented multiple (as in more than 8) serial ports using one or several USB ports? I really want to relieve this 16 port PCI card from my PC so that my platform can be more portable. IF anyone has done any successful work in this area Id be happy to hear about it. Thank You, JR Quote Link to comment
i2dx Posted July 8, 2007 Report Share Posted July 8, 2007 yes, I have used a "Keyspan USA-49WG" and a "Keyspan USA-19HS" adapter to get additional RS232 Ports for a LabVIEW application (Testing µCs, which communicate through RS232 with the "host application") I have heard of issuses with some other adapters, but I had no problems at all with the Keyspan producs. Maybe that sounds like heavy advertising, but that's not intended. Quote Link to comment
TG Posted July 9, 2007 Author Report Share Posted July 9, 2007 QUOTE(i2dx @ Jul 7 2007, 07:00 AM) yes,I have used a "Keyspan USA-49WG" and a "Keyspan USA-19HS" adapter to get additional RS232 Ports for a LabVIEW application (Testing µCs, which communicate through RS232 with the "host application") I have heard of issuses with some other adapters, but I had no problems at all with the Keyspan producs. Maybe that sounds like heavy advertising, but that's not intended. Most appreciated i2dx My main thing is to not waste lots of time on issues with hardware. I think you just saved me much trouble in deciding. Thank You, JR Quote Link to comment
crelf Posted July 10, 2007 Report Share Posted July 10, 2007 I've used 16 USB serial ports with no issues (I didn't need to push them very fast). As an aside, we used a PCI-based serial "concentrator" (the model escapes me at the moment) with 128 serial ports, and it worked beautifully Quote Link to comment
David Boyd Posted July 10, 2007 Report Share Posted July 10, 2007 QUOTE(John Rouse @ Jul 7 2007, 12:33 AM) Has Anyone succesfully implemented multiple (as in more than 8) serial ports using one or several USB ports? I really want to relieve this 16 port PCI card from my PC so that my platform can be more portable. One other option you could consider, if you're looking for 16+ ports, is a portserver device over ethernet. I recently built a system which used a http://www.digi.com/products/serialservers/etherlite.jsp' target="_blank">Digi 32-port device. A second, private ethernet port on the PC running LabVIEW isn't essential, but is helpful to keep the traffic off the corporate net. Digi's drivers manage the portserver so the application code and VISA only address local com ports. The name mapping from com port to physical socket stays constant, which seems less likely with some USB solutions I've seen.About 40USD per port added, which seemed reasonable. Dave Quote Link to comment
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