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.
The detail product link: http://www.e1-converter.com/ethernet_to_SDH_converter/gigabit_over_stm4_converter.html