Cisco WS-X4148-FELXMT-RF

The 48 100BASE-LX10 Fast Ethernet ports for single-mode fiber provide high-density connectivity for both residential and small-business customers over distances up to 6.2 miles (10 km). Fast Ethernet over single-mode fiber offers an attractive choice of cost and future performance. The Catalyst 4500 Fast Ethernet Line Card is also appropriate for manufacturing facilities transportation monitoring and fiber-to-the-desktop applications.