device: 6MU85 merging unit housing type: surface mounting; BI: 47; BO: 3 6 (3ST + 33F + 0HS + 0P); I: 2 8 (protection); U: 4 (standard); measuring transducer inputs: 0 (20 m A or 10 V, fast), 0 (20 m A, normal); housing width: 1 x 19''; modules in 19" row 1: IO 202, PS201, IO203, IO203, IO20 3, IO232; modules in 19" row 2: ; LEDs/push-buttons: 16 LEDs; operation panel: detached, width= 1/3 + 5.0 m cable; key switch: without; display type: no display; front design: USA; auxiliary voltage: 24 V - 48 V DC ;