Provides four GE SFP optical ports for data access and line-rate switching. A GE port is often used as an uplink aggregation port on high-bandwidth and high-speed MANs or backbone networks. Understanding the differences between these port types is essential for proper network design, cable selection, and optical module. S port is fully called serial interface, also known as high-speed asynchronous serial port. E port is an Ethernet interface, called Ethernet interface. Figure 9-9 shows the appearance of the ES5D000G4S01. It transmits data sometimes and also works as a management port; switch access port SFP: Exchanging ports of optical and electrical signals; Adopting optical. Actual product appearance and specifications may vary. DS-3E2500-HI series supports the combination of "Ethernet port + optical port" to meet networking requirements of various scenarios, which is convenient for users to build a flexible network.
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