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Alameda, Calif.--Ascend Communications, Inc. last week announced several products that expand its line of inverse multiplexers at both the high and low end, with models that support between two and 26 device ports.
Ascend said one of the additions to its Multiband access equipment line--the Multiband Plus 56--is the first inverse multiplexer in the industry with support for both leased and switched 56K bit/sec services.
Ascend also introduced the Multiband MAX, an inverse mux that supports up to 26 host ports; the Multiband VSU, a low-end inverse mux for video applications; and the Multiband RPM, a port extension device.
The products can use the proprietary Ascend Inverse Multiplexing protocol or a protocol developed by the Bandwidth-On-Demand Interoperability Group (BONDING). Both are schemes for inverse multiplexing, a process by which the devices synchronize multiple switched or leased circuits to form a single, larger pool of bandwidth.
The Ascend inverse multiplexers also support three or more...