... Interface Type: SC,FC, ST optional, SC standard.Ø The optical line BER: <10-9Ø Signal Delay (optical interface): ≤1.6us ... ] P/NSeriesDescriptionUniteCi-pf111 electrical port, 1 optical port 1 channel standard Profibus DP port, 1 channel optical port, DIP switch set rate ... optical port2 channels independent Profibus DP ports, 1 channel optical port, DIP switch set rate and rate adaptive optional, use ...