I have a client who wants a Meetme box with 12 FXO ports, to connect to Analogue lines coming from an Ericsson PBX. It looks like I could do this with four different hardware configurations: a) three TDM04B cards (based on TDM400P) b) one TDM04B and one TDM808B c) one TDM804B (or TDM854B?) and one TDP808B d) one TDM2403B (half filled TDM2400P) Apart from considerations of cost and PCI slot availability, are there any technical reasons to choose one of the above configurations over the others? Cheers Tony -- Tony Mountifield Work: tony at softins.co.uk - http://www.softins.co.uk Play: tony at mountifield.org - http://tony.mountifield.org
Tony Mountifield wrote:> I have a client who wants a Meetme box with 12 FXO ports, to connect > to Analogue lines coming from an Ericsson PBX. > > It looks like I could do this with four different hardware configurations: > > a) three TDM04B cards (based on TDM400P) > b) one TDM04B and one TDM808B > c) one TDM804B (or TDM854B?) and one TDP808B > d) one TDM2403B (half filled TDM2400P) > > Apart from considerations of cost and PCI slot availability, are there any > technical reasons to choose one of the above configurations over the others? > > Cheers > Tony >If the Ericsson PBX has a T1 card already and you have one in your asterisk box, that would be the cleanest way of acheiving what you want. You could also use a channel bank with the analog and convert to T1 for the Asterisk connection. I try to use T1 (PRI if possible) whenever more than four analog trunks will be involved. I have had tons of bad experiences with analog cards, very few with ISDN. Thanks, Steve Totaro
Tony Mountifield wrote:> I have a client who wants a Meetme box with 12 FXO ports, to connect > to Analogue lines coming from an Ericsson PBX. > > It looks like I could do this with four different hardware configurations: > > a) three TDM04B cards (based on TDM400P) > b) one TDM04B and one TDM808B > c) one TDM804B (or TDM854B?) and one TDP808B > d) one TDM2403B (half filled TDM2400P) > > Apart from considerations of cost and PCI slot availability, are there any > technical reasons to choose one of the above configurations over the others? >No idea, but if you look further afield, if you buy a Sangoma A200 or an A400 you can have all 12 on one PCI (or PCI Express) slot (the former taking up 3 Spaces on your PCs backplane and the latter taking up only 1). If expandability is a concern, an A400 can support up to 48 FXO ports on one PCI (or PCI-Express) Slot (4 spaces) or an A200 can support up to 24 FXO ports. (6 spaces) I can't comment on how good they are, I've only got TDM400Ps myself.
None are great options. I'd use a T1 card and a channel bank. At minimum I'd do the single 2400P. IRQ problems are going to be a bear with multiple cards. -Darren> -----Original Message----- > From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users- > bounces at lists.digium.com] On Behalf Of Tony Mountifield > Sent: Wednesday, October 03, 2007 12:02 PM > To: asterisk-users at lists.digium.com > Subject: [asterisk-users] Best config for 12 FXO system? > > I have a client who wants a Meetme box with 12 FXO ports, to connect > to Analogue lines coming from an Ericsson PBX. > > It looks like I could do this with four different hardwareconfigurations:> > a) three TDM04B cards (based on TDM400P) > b) one TDM04B and one TDM808B > c) one TDM804B (or TDM854B?) and one TDP808B > d) one TDM2403B (half filled TDM2400P) > > Apart from considerations of cost and PCI slot availability, are thereany> technical reasons to choose one of the above configurations over the > others? > > Cheers > Tony > -- > Tony Mountifield > Work: tony at softins.co.uk - http://www.softins.co.uk > Play: tony at mountifield.org - http://tony.mountifield.org > > _______________________________________________ > --Bandwidth and Colocation Provided by http://www.api-digital.com-- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-usersThis message was sent from D2 Technology, INC.
Mojo with Horan & Company, LLC
2007-Oct-03 16:29 UTC
[asterisk-users] Best config for 12 FXO system?
Those are all analog though, aren't they? What about a channel bank into a digital card? Might that be cheaper than shelling out for 12 FXO ports and the cards to hold them? Just wanted to throw that out there before the discussion started :) Tony Mountifield wrote:> I have a client who wants a Meetme box with 12 FXO ports, to connect > to Analogue lines coming from an Ericsson PBX. > > It looks like I could do this with four different hardware configurations: > > a) three TDM04B cards (based on TDM400P) > b) one TDM04B and one TDM808B > c) one TDM804B (or TDM854B?) and one TDP808B > d) one TDM2403B (half filled TDM2400P) > > Apart from considerations of cost and PCI slot availability, are there any > technical reasons to choose one of the above configurations over the others? > > Cheers > Tony >
In article <4703BD4C.7040606 at mail.schoffstall.com>, Steve Totaro <stotaro at mail.schoffstall.com> wrote:> Tony Mountifield wrote: > > I have a client who wants a Meetme box with 12 FXO ports, to connect > > to Analogue lines coming from an Ericsson PBX. > > > > It looks like I could do this with four different hardware configurations: > > > > a) three TDM04B cards (based on TDM400P) > > b) one TDM04B and one TDM808B > > c) one TDM804B (or TDM854B?) and one TDP808B > > d) one TDM2403B (half filled TDM2400P) > > > > Apart from considerations of cost and PCI slot availability, are there any > > technical reasons to choose one of the above configurations over the others? > > > > Cheers > > Tony > > > If the Ericsson PBX has a T1 card already and you have one in your > asterisk box, that would be the cleanest way of acheiving what you > want.We always try to use E1/T1 where possible, but this customer specifically wanted to interface to a bunch of analogue ports, so I assume T1 is not an option in this case.> You could also use a channel bank with the analog and convert to > T1 for the Asterisk connection. > > I try to use T1 (PRI if possible) whenever more than four analog trunks > will be involved. I have had tons of bad experiences with analog cards, > very few with ISDN.I have no experience of channel banks, but I expect that for 12 ports a channel bank and a TE110P would work out more expensive than a half populated TDM2400P. Thanks to all the others that contributed to this thread too.. Cheers Tony -- Tony Mountifield Work: tony at softins.co.uk - http://www.softins.co.uk Play: tony at mountifield.org - http://tony.mountifield.org
mgraves at mstvp.com
2007-Oct-05 11:34 UTC
[asterisk-users] Best config for 12 FXO system?
> -------- Original Message -------- > From: tony at softins.clara.co.uk (Tony Mountifield) > Date: Fri, October 05, 2007 4:05 am > To: asterisk-users at lists.digium.com > In article <81000b5a0710031403g72987eafj6fb4cd41c5929343 at mail.gmail.com>, > C F <shmaltz at gmail.com> wrote: > > If you want this to work nicely dont settle for anything else than a > > channel bank > So why have Digium bothered to market a TDM2400P then? :-S > Cheers > TonyBecause they don't make channel banks? That's a question of economics and techno-culture. If you're into boards (X100p, TDM400p, etc) then making another board fits your worldview. If not, then perhaps a channel bank makes more sense. Xorcom's USB connected device is kinda like a channel bank. I believe that you can get 12 FXOs via that device and not need a t-1/E-12 card in the Asterisk server at all. That could be the most cost effective approach. Michael