Utilities have long relied on telecommunication systems and infrastructure to perform critical functions such as teleprotection（TP),supervisory control and data acquisition（SCADA),distribution automation（DA),advanced metering infrastructure（AMI),and workforce communications.The information provided by these systems allows utility operators to gather real-time information on the performance of the transmission and distribution（TD)systems,protect against electric faults,and allow the workforce to communicate during emergencies and restoration events.Many of these operational systems are reliant on telecommunications technologies that were installed decades ago.While they have been reliable and served their purpose for years,these devices are beginning to fail and in some cases manufacturers no longer support legacy technologies.
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