Thanks for your answer ... I have 2 modems each one in an USB port i've been testing different setups with my USBs ports to try to find best setup. After your email I thougt that if I put them in different ports / motherboards hubs will make any difference. but it didn't
1st question that I have now is if serial modems will make any difference. I plan to buy a 8 port modem pool and I can't decide if to buy USB or RS232 ( via multiserial board ) 2nd one is actually an ideea ... to create a QueueManger thread for each gateway and eventually have 10 paralel threads for 10 modems ending with the possibility to send independently SMS via 2 modems (almost) at the same time Not sure how QueueManger is implemented now ... I'll dig into it Regards, Marius On Saturday, July 28, 2012 12:06:19 PM UTC+3, T.Delenikas wrote: > > Well, I tried to find something (like a recent change in code, perhaps) > that could justify this, with no luck. > On the other hand, this issue has been reported again recently, so > something is really going on here... > > The really bad thing is that I currently don't have access to a > multi-serial board in order to test things. > I've seen that USB hubs (or maybe their drivers?) sometimes appear as if > they lock concurrent port access. I am not the most appropriate person to > follow low-level specs and controller capabilities, but I've seen articles > like this: > http://www.avsforum.com/t/1277379/recommendation-please-most-reliable-self-powered-7-port-usb-hub > > which suggest that low-level hubs may indeed have a problem allowing > concurrent access to all ports. I've seen terms like " *Supports 4 > Concurrent Non-periodic Transactions* ". I guess that all of these > references have something to do with the hub's ability to allow concurrent > port access and how many individual controllers they have (i.e. ports per > controller ration). Do you or anybody else know something about it??? > > Needless to say that such hubs have a cost of $50 - $100 + - check this > one: http://www.cooldrives.com/12poinusb20h.html and have nothing to do > with the $10 hubs found in every stupid accessory store... > > On Thursday, July 26, 2012 9:54:21 PM UTC+3, MaxX wrote: >> >> >> modems via USB ... >> pl2303: Prolific PL2303 USB to serial adaptor driver >> >> -- You received this message because you are subscribed to the Google Groups "SMSLib Discussion Group" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msg/smslib/-/34PNei1Zgu4J. For more options, visit https://groups.google.com/groups/opt_out.
