I am wondering if it's possible to use a bunch of cards in a PCI backplane instead of going out to the extensions with T1 and then and adapter. How are people connecting to large amounts of extensions?
Steven Critchfield
2003-Oct-07 14:44 UTC
[Asterisk-Users] Second Send: Using PCI backplane
On Tue, 2003-10-07 at 16:23, Dennis Gearon wrote:> I am wondering if it's possible to use a bunch of cards in a PCI > backplane instead of going out to the extensions with T1 and then and > adapter. > > How are people connecting to large amounts of extensions?Use google. Search for max number of cards in a system. Then realize why you should do a little homework before shouting out a idea. -- Steven Critchfield <critch@basesys.com>
You are wanting to use a PCI backplane and put a bunch of TDM400P FXS cards instead of a T1 and a channel bank? If that's what you're asking... A T1 card and a channel bank yield 24 extensions. If you figure the TDM400P is $305 for 4 extensions, it would cost $1830 to get enough FXS ports (not to mention the IRQ and other problems you may run into with that many cards). The T1 card is $495, leaving you $1335 to find a 24FXS channel bank (which is more than enough on eBay). A large number of extensions would be handled by way of T1s and channel banks - up to 96 channels on one pci card with the T400P (1 pci card and 4 channel banks). Out of curiosity, why are you reluctant/opposed to a T1 and channel bank? Steve On Tue, 7 Oct 2003, Dennis Gearon wrote:>I am wondering if it's possible to use a bunch of cards in a PCI >backplane instead of going out to the extensions with T1 and then and >adapter. > >How are people connecting to large amounts of extensions? > >_______________________________________________ >Asterisk-Users mailing list >Asterisk-Users@lists.digium.com >http://lists.digium.com/mailman/listinfo/asterisk-users >___________________________________________________________ Steve Creel screel@turbs.com
Each card needs it's own IRQ, not shared with any other device (not even shared with other Digium cards). Adding a PCI backplane gives you more slots, but not more IRQs. On Tue, 2003-10-07 at 16:23, Dennis Gearon wrote:> I am wondering if it's possible to use a bunch of cards in a PCI > backplane instead of going out to the extensions with T1 and then and > adapter. > > How are people connecting to large amounts of extensions? > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users-- Sample configs and more: http://www.fnords.org/~eric/asterisk/ BTEL Consulting +1-850-484-4535 x2111 (Pensacola) +1-504-595-3916 x2111 (New Orleans) +1-877-677-9643 x2111 (Toll Free)