Baudcom have successfully developed the Gigabit ethernet to STM-4 converter,the ethernet to STM-4 converter can realize two electrical gigabit ethernet and two optical (SFP slot) gigabit ethernet over STM-4 converter.Baudcom`s Gigabit Ethernet to STM-4 converter comply with related international standard. The Gigabit Ethernet over STM-4 SDH EOS converter can work by pairs (two units are all from BAUDCOM) or work with other vender`s SDH device. The device can support local or remote management,which is easy for maintainence.