Cabletron Systems CBUQBR User Manual
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CBUQBR User Manual80-14004000-012–2The first interface (in the order 1, 2, 3, 4) that synchronises with thenetwork supplies clock to the system - if this clock source fails the nextinterface with a synchronised clock is used. If interface 4 is providingclock and synchronisation and it is lost, then interface 1 is tried. If noclocks are in sync then a free running clock is supplied to the system.2.4 Real Time ClockA Real time clock function is provided by the operating system on theCBUQBR. This software based real time clock facility calculates onlyhours minutes and seconds. The time and date used is set andmaintained by CBUGSM automatically for all cards in the shelf.2.5 ALERTSThere are three ALERTs specifically generated by the CBUQBR. Theseare output by the CBUQHSM on the Command and Alarms ports,depending on the settings in the CBUGSM menus.ALERT LAPD Activity Sends an ALERT indicating the state of LAPD.The ALERT message is:ALERT LAPD ActiveorALERT LAPD Inactiveas appropriate. |
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