The ISU Series products are ideal for terminating basic rate
service from PBXs and Central Offices. The ISDN Terminal Adapters are
designed for solutions requiring speeds of 128 kbps. Some models have
built-in NT1 functionality. ADTRAN ISDN Inverse Multiplexers provide
additional functionality at rates up to 512 kbps.
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An ISDN network termination device that terminates an ISDN BRI U-interface & provides V.35 and EIA-530/232 DTE serial interfaces
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An ISDN network termination device that terminates four ISDN
BRI U-interfaces and provides V.35 and EIA-530 DTE serial
interfaces
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