RDL DS-TPR3A Active Three-Pair Receiver - Twisted Pair Format-A - Stainless - XLR & stereo phono outThe TPR3A modules are three pair audio receiving modules compatible with RDL Format A twisted pair products. These modules are designed to be mounted in wall boxes, cabinets or other enclosures that allow users to connect external equipment. The D and DS models mount in RDL WB 1U and WB 2U wall boxes, or in standard U. S. electrical boxes. The D TPR3A features a white front panel laminate with gray lettering that matches RDL Decora style remote