When 1830pss-32 works in a multi-sub-frame structure, EC function in the main frame includes Master+Sub, while EC function in the sub-frame only has Sub.The EC between the Master and slave sub-frames is the same, and the software contained in the Flash card in the EC is the same. When the EC from the frame is inserted into the main frame, the software in the EC automatically starts the Master function.
Frame power supply adopts the distributed parallel power supply protection way, 1 + 1 in each frame, there are two station - 48 v power supply access unit PDFCxx two way - 48 v power station respectively connected to the two PDFCxx unit on power supply interface, within the unit after the power protection module into a frame backplane bus power supply, into the child again after the power bus every single frame.
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