Use it to strip timecode on one of your edge tracks. Make sure to print it at no more than -10db on the VU meter. Run the timecode track back into the PPS-2 and connect a MIDI out cable to the MIDI In on the Digi-002.
Then consult your Digi manual on syncing the software to external MIDI timecode. I don't recall all of the details, but I know if can be done. Once it's all set up, the Digi system will chase the Otari.
I'm sing a PPS-2 as well, to sync my Tascam TSR-8. Works like a charm. The Digi side is pretty simple too, once PT is 'online' (control+J on the PC, Command+J on the mac) You just need to tell it to use MMC as the master and when you press play on the tape machine PT starts rolling as well.