device: 6MU85 merging unit housing type: flush mounting; BI: 15; BO: 7 (3ST + 4F + 0HS + 0P); I: 8 ( protection); U: 8 (standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 0 (20 m A, normal); housing width: 2/3 x 19''; modules in 19" row 1: IO 203, PS201, IO211, PS204; 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: yes ;