Global Optically Isolated Relay Market By Type (Above 20 V and Below 80 V , Above 100 V and Below 200 V , Above 200 V and Below 350 V , and Above 350 V), By Application (Power Storage System , Test Measurement & Telecommunication , Medical Device , and Industrial & Security Device), By Region, and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2020-2029