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9C206-1 Power Supply Operation
This chapter describes the operation of the SmartSwitch 9000-6 Slot chassis power
supply. The chapter also details the use of LANVIEW LEDs for troubleshooting
and status information.
The 9C206-1 power supply can operate with input voltages ranging from
100Ð250 Vac at 50/60 Hz. Each 9C206-1 provides a maximum of 1000 watts of
power to the SmartSwitch 9000-6 Slot.
When two power supplies are installed, the system uses a current sharing scheme
where each supply provides 50% (± 5%) of the required load.
Each 9C206-1 power supply converts the 100Ð250 Vac to three different dc outputs
for internal use by the system. Each of these outputs is described below.
¥ 56 volts supplied to the 48 volt dc System Power Bus for use throughout the
chassis for each installed module and the cooling fans.
¥ 5 volts supplied to the Diagnostic Power Bus used by the diagnostic controllers
and the System Monitor.
¥ 3.3 volts supplied to the INB Termination Power Bus.
9C206-1 Power Supply LANVIEW LEDs
The LANVIEW LEDs on the front of the 9C206-1 power supply may be used as an
aid for troubleshooting.
There are three LANVIEW LEDs visible to the user, as shown in Figure 3-1:
¥ PWR Status LED
¥ Power Supply Level Indicator LED
¥ PWR Redundancy LED
Chapter 3
3-1
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