device: 6MU85 merging unit housing type: flush mounting; BI: 179; BO: 61 (43ST + 18F + 0HS + 0P); I: 8 (protection) + 4 (sensitive); U: 24 (standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 0 (20 m A, normal); housing width: 2 x 19"; modules in 19" row 1: IO 202, PS201, IO201, IO202, IO20 5, IO205; modules in 19" row 2: PS 203, IO207, IO211, IO211, IO23 0, IO230; LEDs/push-buttons: 16 LEDs; operation panel: integrated; key switch: without; display type: no display; front design: standard;