asterisk users - Mar 2004 - Adtran TA 750 Channel Bank config

Hello,

What is the minimal configuration ( Chassi, modules, power supply, etc. 
)  to connect a Adtran 750 Channel Bank to a second port at  TE410P 
board, and  provide
24 FXS to analog extensions  phones ?

- The TE410P first port  is will be connected to a ISDN-PRI fractional 
with 15 lines.

Is it a good channel bank ?

Are there some problems with this config ( like echo, latency and others 
)  or this config is like a comercial Digital PBX solution ?

Thanks in advanced ,

Marcio Gomes