[Asterisk-Users] Re:How many TDM22P Card can be used on the same PC ?

[Andrew Kohlsmith]

On Thursday 18 August 2005 06:34, kalezade at boun.edu.tr wrote:
> 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.)

An Adit600 can handle 48 FXO/FXS lines and can be had fully loaded off of ebay 
for around $300-$700 depending on configuration and vendor.

> 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?

In theory there isn't much difference between theory and practice.  In 
practice, there is.

In other words: you're being advised against this by multiple people.  You can 
heed their advice, or you can spend the $800 and have it fail, and then spend 
your theoretical $2000 on top of that to get a solution that works, and will 
work better, and that will scale much better.

-A.