Archiving SAP APO

Hi

I have got the information from SAP help on what are the archiving objects that can be used to archive SAP-APO. I came to know that SAP APO is a separate box. If I need to archive the data from SAP-APO using the corresponding archiving objects, do we have SARA t-code in the SAP-APO box? Or if we want to run the Archive programs thru R/3, how can we communicate SAP-APO with our external R/3 which has got SARA active.

Please suggest, thank you.

Srini