E1 to 4*10/100BaseT Ethernet converter with Local management

channel provided by existing networks with low cost.

10/100Base-T(RJ45) interfaces are provided at the end of Ethernet LAN to accomplish various functions including MAC address self-learning, address filtering, address table maintenance and flow control.

The E1/4*10/100BASE-TX converter support GUI NMS through console port. User can easy set the four Ethernet as shared mode (intelligent L2 switch) or isolation mode(based on port and TAG vlan). In the VLAN mode,user can set the TAG VLAN on these 4 ethernet port, can set the special tag like Q-in-Q, can configurable data rate from 32K~100M on each ETH port, can do some Qos setting.

The E1 to 4ethernet converter’s E1 interfaces comply with ITU-T G.703 and G.704 standards. The E1 interface support 120ohm (RJ45 connector) and 75ohm (BNC connector). The E1 ports support both framing and unframing architecture.The user can select an operating mode for the E1 interface according to the connected E1 environment. This provides flexibility of network application. In the framing mode, the E1 interface provides a rate of N*64Kbps（N=1~31）. In the unframing mode, the E1 channel provides a rate of 2.048Mbps and accomplishes transparent transmission.

FE1-4*100BASE-TX protocol converter is used in the framing mode, the transmission clock can be either provided internally, i.e. using the main clocking timing mode (INT), or extracted from the E1 channel, i.e. using slave clock timing mode.

FE1-4*100BASE-TX protocol converter provides plenty of self-test functions, supporting local loop and remote loop. It also provides pseudo random code test function to test error codes in the circuit.