Quoting Eric Wieling aka ManxPower <[EMAIL PROTECTED]>: > [EMAIL PROTECTED] wrote: > > Thank you W, asking differently: > > > > (Suppose) I have a very reliable hardware,motherboard,power > > supply,bios,kernel,configuration, I have reliable and fast everything. > > > > Now what is the maximum number of FXO/FXS modules? What does it depend in > > asterisk/tdm cards now? > > Why are you so desperate for TDM400P cards? Don't put more than three > Digium cards in one box. IRQ shareing is one of the problems. There is > also the problem that each card generates 1,000 interrupts per second. > If you want more than 8 or 12 ports then get a T-1 card and a Channel > Bank. The channel bank will convert the T-1 channels to/from Asterisk > into analog ports for you.
Because 800$<2000$ (interms of hardware). (For 12 Ports: The min. price of T1(500$)+channel bank($1,500)=2000$. While the min. price of 3 TDM400P with 24 modules is just=800$. Your solution is still 400$ more expensive for 24 ports.) You say that each card generates an interrupt in every 1ms. So for 6 cards, each card needs to be processed atleast in 166usec(1ms/6) in their interrupt_routine. Is it teoritically impossible on a perfect configuration/system? Thanks. bdm. _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
