Posted 19 Jun 2016 I am Looking to buy a ALLEN-BRADLEY 2706-D21J2 SER. C OPERATOR INTERFACE REV. A (A 4 Roll Display,, I have every thing to operate the DL-20 2 Roll Display. Will what I use to control the DL-20 also work on the 2706-D21J2 SER. C 4 Roll ?? Thanks Whit Share this post Link to post Share on other sites