·            Offers transparent transfer 4*Ethernet over 4E1 TDM

·         4*10M/100M Ethernet, full/half duplex auto-negotiation

·         4 ethernet support VLAN function based on tags compliant to IEE 802.1Q

·         Four shared ethernet port can save an Ethernet switch for customer

·         Ethernet support AUTO-MDIX ( cross over and straight through self-adapt)

·         Allow 4E1 channels up to 220ms transfer delay. When the delay over the limitation, can stop transfer automatically

·         Having 2 loop back functions: E1 local loop, E1 external loop

·         Support Dynamic Ethernet MAC address (4096), having local address filter function

·         E1 interface compatible with ITU-T G.703, G.704, and G.823. signaling slot not supported

·         E1 interface having internal clock resume circuit and HDB3 codec circuit

·         Support E1 channel hot plug, and auto detect available E1 channels not pause the transmission

·         Supporting 1 to 4 E1 channels customized configuration, auto detect the number of E1 channels and select the available E1 at reset

·         E1 Support 75Ω(unbalance) impedance or 120Ω(balance) for order

·         Support reset remote system from local system

·         Support Ethernet monitor auto reset function

·         Support SNMP, CLI, GUI management (optional).

·         19 inch rack mount,1U high

·         Support AC 220V power or DC 48V power or double AC+DC power