Cabletron Systems CBUQBR User Manual
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The Quad Basic Rate Module80-14004000-01 1–11 The Quad Basic Rate Module1.1 IntroductionThe Cyber Backup Quad Basic Rate Module (CBUQBR) is a single widthcard for use in either the CBU/14 or the CBU/6 Shelf, otherwise knownas a ‘Shelf System’.The CBUQBR connects to 4 basic rate ISDN lines providing up to 8 ‘B’channels for interfacing with other application cards in the Fivemere-Cabletron Shelf System. A Shelf System supports a single CBUQBR ora single CBUPRI but not both simultaneously. (Please see section 5 forthe Glossary of Terms used in this manual).Management is provided via the Cyber Backup Generic Shelf Manager(CBUGSM) which forms a standard part of the Shelf System.Local or remote access to the cards in the shelf is by password which isentered on the first poll of the shelf. Alarm messages from the cards inthe shelf are routed to the alarm and/or command ports on theCBUGSM.For cards other than the CBUQBR used in the Shelf System, please seethe relevant manual.1.2 General DescriptionThe CBUQBR comprises a front card and a rear interface card. |
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