Primarily used as test jacks by the telephone industry, CTPTT-310 single- and CTPTT-320 dual-configuration, right-angle pc board-mount TT (Bantum) telephone jacks and covers have been retooled to improve performance and reduce cost. The devices’ body is made of PBT with glass added to improve strength, enabling the jacks to better withstand wave soldering processes. And the contacts are selectively gold plated to lengthen electrical life.