Weidmuller 8800040000 IP20 T-piece PROFIBUS-DP interface unit enables the user to connect it conveniently in the electrical cabinet. The RS PB-DP T SUB-D interface unit can be mounted on TS 32/35 rails and used to connect standardized PROFIBUS-DP lines. Spur lines can be connected next to the connections. The spur lines should be kept as short as possible. It allows you to also connect an analysis/programming device via a 9- pole Sub-D socket.