Posted 7/25/2013 10:53 (#3228480 - in reply to #3227773) Subject: Re: 252- 600
SE Michigan
I have a similar setup to yours, except I have an integra/insight instead of the pro 600. I had to run a second cable down from the 252 to the integra/insight to make things work. Depending on the cable you are using you might also need a nul modem in the line.