... Ethernet or IP networks.Features:•provide 1 channel STM-1(63 E1 service) over 1 Ethernet adaptive•Provide 5 GE electrical ... , adaptive and loopback•Provide 2 STM-1 optical ports , Support 1 + 1 protection•Ethernet built-in layer 2 switch, support VLAN802.1Q ... DC-48 V dual power supply, realize 1 + 1 backupSpecification:Capacity2 STM-1 optical port (1+1 protection), 5GE electronically port , 1GE ...