Symantec DLP 15 OCR setup

In the 15 admin guide, it states:  A certificate for communication between the OCR client on the Enforce Server and the OCR Server is also required. for the OCR installation and setup steps. But there is no further detail or steps. What certificate is needed for the OCR server? Does it have a keystore folder and you just put in the same cert that you put on the Detection servers? 

Thanks,