Operation
3-4
System Diagnostic Controller
This diagnostic controller is composed of a Z-80 microprocessor and its
supporting logic. The diagnostic controller performs the following:
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Controls the power-up sequencing of modules
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Monitors the 9A600 input and output power parameters
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Keeps watch over the main host processor
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Monitors the temperature
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Controls the SMB LANVIEW diagnostic LED
Although the diagnostic controller and the main host processor can operate
independently of each other if needed, they exchange information about each
otherÕs status and overall module condition. The information gathered by the
diagnostic controller is available to the network manager via Local/Remote
Management and the LCD located on the environmental module. The 9A600 has
been designed so that in the event of a diagnostic controller fault, the modules
continue to function.
DC/DC Converter
The DC/DC converter converts the 48 Vdc on the system power bus to the
necessary operating voltages for its host network services module. The diagnostic
controller controls the operation of the dc/dc converter.
Содержание SmartSwitch 9500
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