products introduction: single mode media converters can change the optic signal to electric signal. they can be used between the fible lines and cable lines. products type: 10m/100m media converters and 1000m media converters products capability: according with the protocals: ieee 802.3, ieee 802.3u, fast ethernet and ieee802.3ab support long data packet easily for setting and debugging technology specification: wavelength:1310nm and 1550nm lan port speed:10m/100m and 1000m transimission distance:20km,40km,60km,80km,120km order information: single piece of fiber and double pieces of fiber power supply: dc-48v and ac220v my information my e-mail:1000kathy@gmail.com website:www.okfoc.com msn:caizf831015@126.com skype:kathy604270824