Earwig

I am attempting to access my switch via DSA going through a 8400B Plus Data Module. I have the module connected correctly and have loaded the software. That is where I am hitting a roadblock and was curious on obtaining a users guide. I was going to try and keep all of this brief, but I don't think that that is best now (so brace yourselves):

Do I need any special circut packs to connect to the switch?

I have modified my extension to to indicate that I have a data module and created a soft ext on page 6. For the field on the DSA wizard which asks for the phone number, do I enter the ext of the INADS line? I see on the switch that there is an ext to a DSA hunt group, which ties into some netcon extensions. Do I use that number of the hunt group extension? I try to call the extension and just get the tone like it isn't a valid extension.

There is also a data module on the switch, but how do I hook into this?