OmniPCX + Asterisk


I’m working on a project : Intergrate Microsoft Office Communication Server 2007 R2 with an existing PBX OmniPCX Alcatel trough Asterisk.
OCS <-> Asterisk RC5 : OK

I’ve got a Digium TDM410 card, and i wanna know how do i have to configure my asterisk to redirect call from Asterisk to the PBX.
And where do i have to plug the RJ11 cable on the Omnipcx

I’ve got Zaptel and Libpri lastest version

So thanks !

ps : sorry for my English, i’m french.