The Express 3000 Series products are cost-effective ISDN modems for high-speed data transmission at rates up to 128 kbps. Both the Express 3000 and 3010 offers two analog ports for voice and an RS232 port for data.
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.
