XpressStack, a series of three modular, stackable central-site concentrators (from US $9450), employ multi-RISC processor technology for the best possible throughput, whether you use one or multiple modules. For basic-rate ISDN connections, XpressStack BRI provides 16 64-Kbps channels, support for a single 10Base-T LAN interface, and an asynchronous console port. XpressStack PRI provides the same concentration via one ISDN PRI interface, which provides 23 North American (or 30 European) 64-Kbps channels. A 24-port intelligent Ethernet switch, XpressStack VLS creates an independent 10-Mbps Ethernet segment.
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Central-Site Concentrator
