Sierra Instruments & Controls supplies Interface Isolators for use in Explosion Hazardous Areas. Sierra Instruments & Controls covers several segments including Consultancy: Process Instruments & Control System, Project: Turnkey PLC/SCADA Control system Integration, Machine Vision: Camera Inspection system for Quality Assurance, etc. Interface Isolators for use in Explosion Hazardous Areas consists of power supply units, gateways, I/O modules as well as a module rack to accommodate all components. The backplane is integrated in the module rack. The backplane is needed for power supply, data transport and contains the connection level for the field devices. The power supply modules ensure the supply of the entire systems [with MT18 up to 2 power supplies, redundant operation].