Etherner Extenders – Perle
If you are looking for a way to extend standard Ethernet cable connections beyond the IEEE 802.3-standard (about 100 meters distance maximum) and an alternative fiber-based solution seems to expensive perhaps an Ethernet Extender solution might be the right thing for you. Perle offers a wide range of transparent extender units for 10/100/1000 Ethernet connections. You can use standard single twisted pair (CAT 5/6/7), coax or existing copper cables in alarm circuits, E1/T1, RS232/422/485, CCTV or CATV-applications. Read more about these products and the different available models at Perles homepage: http://www.perle.com/products/ethernet-extenders.shtml