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Mathias K. kesmtp at freenet.deOn 11.07.2012 12:21, Harald Welte wrote: > On Wed, Jul 11, 2012 at 11:39:21AM +0200, Mathias K. wrote: >> On 11.07.2012 10:26, Harald Welte wrote: >>> the core modem design is 40 x 29.8mm in size, but that of course >>> excludes things like the sim card reader, or any other new components we >>> may add. >> >> So it looks like the MiniPCI Express Card on this picture http://en.wikipedia.org/wiki/File:MiniPCI_and_MiniPCI_Express_cards.jpg >> ? > > I was thinking of a full-size PCIe connector like in desktop PC use. > This allows the modems to be 90degree angle from the main board. The > miniPCIe or miniPCI connectors require the modem to be flat on top of > the base board, reducing the density and increasing PCB size of that > backplane. Do you mean the x16 with full-size PCIe? Size/Pins: PCI Express ×1 - 25mm - 36 pins PCI Express ×4 - 39mm - 64 pins PCI Express ×8 - 56mm - 98 pins PCI Express ×16 - 89mm - 164 pins http://en.wikipedia.org/wiki/File:PCIExpress.jpg Do you have done some pinout done? The x16 (full size) is a really huge as connector. >> I think the initial hurdle to get it run on the table is really high >> with this kind of connector. > > Well, we can always make a simple PCIe break-out board that you can plug > the modem into. That break-out could then provide you with a 2.54mm > pitch standard header. Would that work? Sounds good. Regards, Mathias