The Allied Telesis' range of Fast Ethernet media converters allows users to extend the size of UTP networks with the use of fiber cabling. Converting between 100 Base-TX or 100 Base-FX Multi-mode & 100 Base-FX Single-mode " Long Haul" quickly & reliably, the AT-MC103LH & AT-MC104LH can be used to extend networks with up to 40km of fiber. The AT-MC103LH (with UTP connection) features an internal MDI/MDIX switch, allowing the converter to be connected to a PC, hub or switch with a simple UTP cable. Both media converters also allow the installer to test the integrity of fiber connection, by forcing the converters to communicate over the fiber cable. This Link Test feature allows installers to check for cable faults without the need for expensive fiber optic test equipment. Please note: networking components such as switches, routers, UPS & wireless devices require that speeds & standards be consistent throughout the network to gain optimum performance. To avoid compatibility clashes or for advice, please contact us on solutions@ebuyer.com.