RAD's IMXi-4 inverse multiplexer splits a single high speed channel of up to 8.3 Mbps and transmits the split signals over (up to) four E1/T1 or SHDSL network links. By splitting the traffic onto multiple E1/T1 or SHDSL links, IMXi-4 inverse multiplexer enables cost-effective high speed transmissions, such as transparent LAN over WANs. IMXi-4 also supports IP routing or user-selectable MAC bridging with VLAN support.