device: 6MU85 merging unit housing type: flush mounting; BI: 103; BO: 71 (51ST + 20F + 0HS + 0P); I: 20 (protection); U: 12 (standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 0 (20 m A, normal); housing width: 1 x 19'' + 2/3 x 19''; modules in 19" row 1: IO 202, PS201, IO203, IO205, IO20 5, IO205; modules in 19" row 2: PS 203, IO214, IO214, IO230; 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,