The JetNet 4518 is an 18-port Industrial Managed Ethernet Switch, specifically designed for industrial environments requiring high port density. In addition to the 16 Fast Ethernet ports, JetNet 4518 is equipped with additional 2 10100Base-TX100Base-FX SFP Combo ports, which can be configured for a variety of cabling types and distances depending on your specific environmental needs. With the non-blocking switching performance, JetNet 4518 provides 12.8G backplane which ensures the traffic switching without data loss and blocking. Combining rugged IP-31 enclosure, great heat dissipation and -4075oC wide operating temperature range, JetNet