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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
Chapter 1
1
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