\ 11a Product description The modular u-cremate systems supports common field bus systems, Up to 64 active /0 modules can be combined in a u-remote station. The following components belong to the u-remote product series: Field bus couplet (gateway); Active /O modules; Passive /0 modules; Functional safety modules; Mechanical fixing elements (end bracket, end plate). Technical data Operating voltage: 24 V d.c. Enclosure protection degree: 1P20. Maximum permissible ambient temperature: 70°C.