Inline XC, bus coupler, PROFIBUS DP, D-SUB-9 female connector, digital input: 8, 24 V DC, connection system: 3-wire, digital output: 4, 24 V DC, 500 mA, connection system: 3-wire, extreme environment model, local bus transfer rate: 500 kBit / s / 2 MBit / s, protection class: IP20, including Inline connector and marking strip