Overview Product Description Paradyne 3610-A3-005 - 64K DSU/CSU External 6-Port TDM/DSD (Refurbished) 90 Day Warranty Product Videos Custom Field Product Reviews Write a Review Write a Review × Paradyne 3610-A3-005 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *