ADTRAN 61200051L1, 1200051L6, 1200051L2, 1200051L5 user manual Isdn Overview, Adtran ISU

Chapter 1 Understanding ISDN and the ISU 2x64

ISDN OVERVIEW

The Integrated Services Digital Network (ISDN) is a public or pri- vate switched digital network. ISDN is an international standard for digital communications, allowing a full range of enhanced ser- vices supporting voice, data, and image applications through standard interfaces over a single pair of telephone wires. ISDN provides a means of integrating these services and modernizing communication networks for information movement and man- agement efficiency.

THE ADTRAN ISU 2X64

ADTRAN’s ISU™ 2x64 is a stand-alone ISDN service unit that connects data terminal equipment to the ISDN network. The ISU 2x64 is a dual-port ISDN terminal adapter available with an op- tional integrated NT1. The ISU 2x64 supports two applications at data rates of up to 64 kbps on each DTE interface, or one applica- tion using a data rate greater than 64 kbps (maximum 128 kbps) on a single DTE interface. Target applications for the ISU 2x64 in- clude video conferencing, audio broadcasting, and as dual mo- dem replacement.

61200051L1-1D ISU 2x64 Dual Port ISDN Service Unit User Manual 1