
303125-B Rev 00
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Preface
The ISDN BRI Adapter Module provides connectivity for using Nortel
Networks™ dial services such as Dial Backup, Dial-on-Demand and
Bandwidth-on-Demand. The BRI provides two B channels, and supports full
D-channel signaling and call setup/teardown as defined in 1988 CCITT (now
ITU-T) Recommendation Q.921 and Q.931.
Before You Begin
This guide is intended for qualified service personnel who are installing the ISDN
BRI Adapter Module in an AN/ANH, ARN, Passport 5430 or Passport 2430 for
the first time or who need to install or replace any customer-replaceable unit
(CRU). A qualified service person should have appropriate technical training and
experience and be aware of the hazards involved in installing and replacing
CRUs.
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