... Profibus DP port, 1 channel optical port, DIP switch set rate and rate adaptive optional, use for point to point topology, multi ... Profibus DP ports, 1 channel optical port, DIP switch set rate and rate adaptive optional, use for point to point topology, multi ... /SC/FC optional.pcs profibus DP optical link module with dual DP and dual optical port for siemens plc OLM application ci-pf22 ...