9C306 System Monitor Operation
3-2
System Voltages
The 9C306 System Monitor monitors speciÞc system power parameters to ensure
that they are within acceptable limits. The power parameters monitored from the
backplane are the 48-volt DC System Power Bus and the INB Termination Power
Bus. The power parameter monitored within the System Monitor is the 12-volt
internal line. The results of the monitoring are available to the network manager
via remote management. Voltages above or below the acceptable voltage limits
cause an alarm to be sent to the network manager. Table 3-2 summarizes these
acceptable voltage limits.
LANVIEW LED
The LANVIEW LED on the front of the 9C306 System Monitor Module is an aid in
troubleshooting.
There is one LED visible to the user (Figure 3-1), which is the STATUS LED.
Figure 3-1. 9C306 System Monitor LANVIEW LED
Table 3-2. Acceptable Voltage Limits
Description
Acceptable Voltage Limits
48-volt DC System Power Bus
From 40 volts to 59 volts
INB Termination Power Bus
From 3.1 volts to 5 volts
12-volt internal line
From 11 volts to 13 volts
STATUS
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Summary of Contents for 9C306
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