+ Provides 8 x E1 G.703 transparent transmission over the fiber;
+ Provide 4 x 100 Mbit/s Ethernet channels, Ethernet speed can be set for each port on based on any multiples

of n x 32 Kbit/s;
+ Provides one RS232 channel for option;
+ Provide one hotline channel for option (enginering ordewire);
+ Speed of optical port is 155Mbps, transmission range can reach 25KM, 40KM, 60KM, 80KM or 100km,120KM;
+ E1 interface code is HDB3; E1 vibration characteristic conforms to ITU-T G.703, G.823 and G.742;
+ Ethernet port supports full/half duplex, 10M/100M auto-ataptable, throughput is full duplex 100 Mbit/s;
+ Ethernet port supports dot1Q VLAN setting possibility and port based VLAN's.
+ Layer2 intelligent switch possibilities for 4 x Ethernet ports Ethernet packet size supports 1916 byte

and 4 Ethernet port could be set seperately, jumbo frames are supported;
+ Simultaneous 8 E1 & 100 Mbit/s full duplex operation;
+ Complete alarm function and can monitor remote device status; Supports E1 loop from remote

so as to detect and manage device conveniently;
+ The combination AC220V and DC-48V for redundant options;