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CyberSWITCH 100 Advanced User Information vii
 
Preface
 
Welcome to the Cabletron Systems 
 
CyberSWITCH 100 Family Advanced User Information 
Guide
 
. This guide provides hardware specifications for the CyberSWITCH 100 family of products 
that includes the CSX101, CSX103, CSX104, and CSX105. This guide also provides background 
information about the INtegrated Services Digitak Network (ISDN) including a step-by-step guide 
for ordering ISDN from your service provider, and bridging and routing information.
 
ISDN Overview
 
ISDN provides an inexpensive switched digital access to remote sites. The ISDN BRI standard 
provides for two high speed 64 K bits per seconds (Kbps) bearer channels used for voice or data 
connections and one 16 Kbps signaling data (D) channel used for call setup, signaling and other 
information. ISDN allows all types of information to be transmitted including voice, data, fax and 
video. Multiple devices can be linked to a single ISDN connection, each having its own telephone 
number. Two or more channels can be combined into a single larger transmission pipe offering 
variable transmission speeds.
 
How to Use This Guide
 
Below is a list of the chapters comprising this guide, with brief explanations of their content:
 
 
 
 
, provides the information you need to order 
ISDN service from the telephone company.
 
 
 
 
, describes the CSX100 family hardware 
components and software protocols and features.
 
 
 
 
 
 
 
 
CyberSWITCH 100.
 
 
 
 
, provides detailed troubleshooting help.
Appendix A, Hardware Specifications, provides the hardware specifications for the CSX100.
Apppendix B, Glossary, defines commonly used terms, and is located at the back of this guide.