device: 6MU85 merging unit housing type: flush mounting; BI: 43; BO: 9 (3ST + 6F + 0HS + 0P); I: 4 ( protection); U: 0 (standard); measuring transducer inputs: 32 (20 mA or 10 V, fast), 0 (20 mA, normal); housing width: 1 x 19''; modules in 19" row 1: IO 201, PS201, IO212, IO212, IO21 2, IO212; modules in 19" row 2: ; LEDs/push-buttons: 16 LEDs; operation panel: integrated; key switch: without; display type: no display; front design: standard; auxiliary voltage: 60 V - 250 V DC, 100 V - 230 V AC; redundant power supply: no