Q-Logic 5000 manual Power Supplies and Fans, Model 5202/5602 Switch Power Supplies

2 – General Description Power Supplies and Fans

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Power Supplies and Fans

The model 5200/5600 switch has a single power supply that converts 100–240 VAC to DC voltages for the various switch circuits. Four internal fans provide cooling. The switch monitors internal air temperature, and therefore does not monitor or report fan operational status. Air flow is front-to-back. To energize the switch, plug the power cord into the switch AC receptacle and into a 100–240 VAC power source.

The model 5202/5602 switch has two, hot pluggable power supplies that convert standard 100–240 VAC to DC voltages for the various switch circuits. Each power supply has an AC power receptacle and two status LEDs as shown in Figure 2-8:

„The Power Supply Status LED (green) illuminates to indicate that the power supply is receiving AC voltage and producing the proper DC voltages.

„The Power Supply Fault LED (amber) illuminates to indicate that a power supply fault exists and requires attention.

Status LED (Green)	AC Power
Fault LED (Amber)	Receptacle
Power Supply 1	Power Supply 2

Figure 2-8. Model 5202/5602 Switch Power Supplies

Each power supply is capable of providing all of the switch’s power needs. During normal operation, each power supply provides half of the demand. If one power supply goes offline, the second power supply steps up and provides the difference.

The power supplies are hot swappable and interchangeable. Hot pluggable means that you can remove and replace one power supply while the switch is in operation without disrupting service. Refer to Section 6 for information about replacing the power supplies.

Connecting a power supply to an AC voltage source energizes the switch logic circuitry. Internal fans provide cooling. Air flow is front-to-back.

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