device: 6MU85 merging unit housing type: flush mounting; BI: 71; BO: 1 9 (3ST + 16F + 0HS + 0P); I: 1 6 (protection); U: 4 (standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 4 (20 m A, normal); housing width: 1 x 19''; modules in 19" row 1: IO 202, PS201, IO201, IO203, IO23 0, CB202; modules in 19" row 2: ; LEDs/push-buttons: 80 LEDs; operation panel: integrated; key switch: without; display type: large display; front design: standard; auxiliary voltage: 60 V - 250 V DC, 100 V - 230 V AC; redundant power supply: no