Based on the common topologies applied in distribution system, the corresponding Ethernet Passive Optical Network (EPON) structures are proposed in this paper. The average survivability of each type is quantitatively discussed. According to the simulation results, we demonstrate that the "hand-in-hand" type can provide the highest survivability among them. This connection mode can also be used in electricity utilization information collection system, which is the base to realize intelligent distribution and intelligent utilization.
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