Hi John, Please find some hints in line ...
John Doe wrote: > Hi, > > I want to build a pbx and wifi router based on the soekris net5501 > (together with its standard case), a tdm400 card and a mini-pci wifi card. > This box should be 100% reliable, 24x7, as its going to be in a > different part of the world, in fact I will build 2 or 3 of these and > have them in different countries. > > I'm planning to have 2 fxo and 2 fxs modules on the tdm400. > I know that having fxs modules require additional power for the phones > to ring, I have researched a bit into this and some people seem to use > the JP15 power connector for this, but there is no definitive statement > that this actually works. > I would appreciate it if anybody in this list has a similar solution and > would like to share his experience. > > On the wireless side I'm thinking about getting a CM9 (802.11 a/b/g) or > a R52n mini-pci (802.11 a/b/g/n) card. > 802.11n doesn't seem to be well supported in Linux yet, but I expect > this to change soon. I don't know what you mean by "soon".. but I'd say that 11n is not usable for normal user operation mode, e.g., when planning to deploy an operator network. > Both of these cards have connectors for 2 antennas, which also brings > the question of where do I put the antennas? First of all, both connectors on the card gives you "just" diversity... these are not two different physical wireless interfaces! Please be aware that diversity is enabled by default (in madwifi) - even if no antenna is connected to... therefore, the performance could be a little bit under what you could get if diversity in enabled but just one antenna is attached to the card. WRT 11n - if you really plan to use mimo you'd need to use the ath9k driver... (again: IMO, not ready yet for daily use) > I haven't seen the case in person, but from the pictures there doesn't > seem to be enough space on the back for even one antenna. there is one slot for a PCI card - use that to drill a hole into the metal strip... that works out well > I have thought about connecting only one antenna and/or having the > antenna(s) inside the case, but I'm no wireless expert, so I don't know > how will this affect the range/speed of the wifi link. I cannot provide a picture of our nodes since we are still just in the phase to develop our mesh without really deploying it. But one thing I'd like to advice you: please do not deploy the antennas into the case! That will affect the performance significantly (OK - depends what you wanna do ;) ) > Any tips on the antenna thing would also be appreciated, and if you have > pictures of your soekris case with antennas, even better. > > Thanks! > > Alan Rgds, Sebastian > > > ------------------------------------------------------------------------ > > _______________________________________________ > Soekris-tech mailing list > [email protected] > http://lists.soekris.com/mailman/listinfo/soekris-tech -- Mr. Sebastian Robitzsch, Dipl.-Ing. (FH) PhD Candidate University College Dublin School of Computer Science & Informatics Belfield Dublin 4 Ireland Mobile: +353 (0)86 - 22 10 988 (IRL) +49 (0)1 72 - 3 52 80 72 (D) Mail: [email protected] WWW: www.seronline.de Skype: seronline82 Jabber: [email protected] Twitter: www.twitter.com/seronline Delicious: www.delicious.com/seronline Mendeley: www.mendeley.com/profiles/sebastian-robitzsch -----------------------------------------------------
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