RDL DS-TPS3A Active 3-Pair Sender - Twisted Pair Format-A - Stainless - XLR mic & stereo phono inThe TPS3A modules are three pair audio sending 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 audio sources. The D and DS models mount in RDL WB 1U and WB 2U wall boxes, or in standard U. S. electrical boxes. The D TPS3A features a white front panel laminate with gray lettering that matches RDL Decora style remote controls. The