TC-320ER is an E1 and Fractional E1 integrated routing Digital Access Unit. It provides a cost effective digital access of E1 and Fractional E1 for Local Area Network. With the data rates of 64Kbps to 2048Kbps in multiples
of 64K of WAN ports, the user is free to convert the routers' Ethernet data stream to E1/FE1 frames in the purpose of providing the adjustable bandwidth to another
location via Digital Access Network (see Application Diagrams).

The unit supports Frame Relay, PPP and HDLC for data link connection. Network Address Translation (NAT) allows user to share a single legal IP address to access Internet, also it hides all local area network (LAN) IP address in view of security. In addition, TC320ER performs the conversion of Ethernet packet over HDLC to IP over HDLC, PPP, or Frame Relay protocol. This conversion provides the connection of broadly populated LAN bridges to the existing router's V.35 or
E1 WAN port (see Application diagrams)

Remote management features allows user to be able accessing the TC-320ER
via Telnet for configuration, or TFTP for firmware upgraded. It offers the embedded
DHCP server, which helps system administration managing the IP address network in the easiest way ever.