The DP/DP transceiver is housed in a 40 mm casing of the S7-300 series. It can be mounted on a standard mounting rail (7.5 mm and 15 mm) as well as on a mounting rail for the S7 design.

The preferred arrangement is upright in a row, side by side, and without clearance.

The transceiver is connected to the PROFIBUS DP networks through an integral 9-pin sub-D connector.