Himachal Futuristic Communications Ltd. Supplies Add Drop Synchronous Multiplexer with 63x2Mbps Tributary Module. The cable division, wireless division and the wire line division of Himachal Futuristic Communications Ltd. Is an ISO 9001 and 9002 registered company. Add Drop Synchronous Multiplexer with 63x2Mbps Tributary Module has been designed for junction and long distance networks and supports complex topologies such as rings, chains and stars. Add Drop Synchronous Multiplexer with 63x2Mbps Tributary Module is equipped with up to four 2.5 Gbps optical line interface. It is a user friendly & powerful NMS on UNIX platform.