The AL210 single-chip transceiver IC converts twisted-pair Fast Ethernet (100Base-TX) signals into fiber-optic Fast Ethernet (100Base-FX) signals. It also supports redundant fiber links for fault-tolerant connections that are critical for network backbones. The device complies with the IEEE802.3 standard.In replacing five chips, the AL210 makes possible the design of low-cost converter modules that allow PCs and workstations with Fast Ethernet cards to connect to fiber networks. Such modules can also be used between switches and routers to convert a twisted-pair link into a longer-reaching and more reliable fiber link.