No, I'm afraid at this stage the recommendation is still "don't connect this to outside plant cabling". There very well might be solutions for this out there that *could* work but nothing that would be officially sanctioned by us.
Adtran Applications Engineering
I just wanted to jump in and add to this post that ADTRAN has now released an ActivReach Configuration and Troubleshooting guide called ADTRAN NetVanta 1235P/1535P ActivReach Technology Setup and Configuration guide for any customers who may be looking at this thread for ActivReach information. Check it out!