Cisco C3K-PWR-750WAC Power Supply User Manual

1. Introduction

This manual provides essential information for the safe and efficient use of the Cisco C3K-PWR-750WAC hot-plug AC power supply. This power supply is designed for use with compatible Cisco Catalyst network switches, including the 2960, 2960S, 3560E, and 3560V2 series. Please read this manual thoroughly before installation and operation.

2. Safety Information

Always observe the following safety precautions to prevent injury and damage to the equipment:

• Ensure the power source voltage matches the power supply's input requirements (AC 100-240 V).
• Do not operate the power supply in wet or damp conditions.
• Do not open the power supply casing. There are no user-serviceable parts inside.
• Disconnect power before installing or removing the power supply. Although it is hot-pluggable, exercising caution is recommended.
• Ensure proper grounding to prevent electrical shock.
• Keep ventilation openings clear to prevent overheating.

3. Package Contents

Verify that your package contains the following items:

• Cisco C3K-PWR-750WAC 750W AC Power Supply
• Power Cord (region-specific)
• Documentation (Quick Start Guide or similar)

4. Setup and Installation

The Cisco C3K-PWR-750WAC is a hot-pluggable power supply, meaning it can be installed or removed without powering down the host switch, provided the switch supports this feature and has redundant power. Always consult your switch's documentation for specific installation procedures.

4.1. Installation Steps

1. Prepare the Switch: Ensure the switch is powered on (if hot-plugging) or powered off and disconnected from all power sources (if installing into an empty chassis or replacing a failed unit without hot-plug support).
2. Locate Power Supply Bay: Identify the power supply bay on your Cisco Catalyst switch.
3. Remove Blank Panel (if applicable): If a blank panel covers the bay, remove it by loosening any captive screws and pulling it out.
4. Insert Power Supply: Carefully slide the C3K-PWR-750WAC power supply into the bay until it is fully seated. You should feel it click into place.
5. Secure Power Supply: Tighten any captive screws on the power supply to secure it in the bay.
6. Connect Power Cord: Connect the AC power cord to the power supply's inlet and then to a grounded AC power outlet.
7. Verify Operation: Check the status indicators on the power supply and the switch for proper operation. Refer to the "Operating" section for details.

Figure 1: Illustration of the Cisco C3K-PWR-750WAC power supply. This image shows the general appearance of the power supply, which is designed to be inserted into a compatible network switch bay.

5. Operating the Power Supply

Once installed and connected, the C3K-PWR-750WAC power supply operates automatically. It provides the necessary power to the connected Cisco Catalyst switch. The power supply typically features LED indicators to show its operational status.

5.1. Status Indicators

While specific LED behavior can vary slightly by switch model, common indicators include:

• Green/Solid: Indicates the power supply is operating normally and providing power.
• Amber/Flashing: May indicate a fault or a warning condition. Refer to the switch's documentation for specific error codes or patterns.
• Off: Indicates no power is being supplied to the unit, or the unit has failed.

Always consult the documentation for your specific Cisco Catalyst switch model for a detailed explanation of its power supply LED indicators.

6. Maintenance

The Cisco C3K-PWR-750WAC power supply is designed for minimal maintenance. However, periodic checks can help ensure optimal performance and longevity.

• Ventilation: Ensure that the air vents on the power supply and the switch chassis are clear of dust and obstructions to allow for proper airflow and cooling.
• Cabling: Periodically check all power cables for secure connections and signs of damage. Replace any damaged cables immediately.
• Cleaning: If necessary, gently clean the exterior of the power supply with a soft, dry, lint-free cloth. Do not use liquid cleaners or aerosols.
• Environmental Conditions: Ensure the operating environment remains within the specified temperature and humidity ranges for the switch and power supply.

7. Troubleshooting

If you encounter issues with your C3K-PWR-750WAC power supply, consider the following troubleshooting steps:

• No Power/Power LED Off:
  • Verify the power cord is securely connected to both the power supply and the AC outlet.
  • Check if the AC outlet is functional by plugging in another device.
  • Ensure the power supply is fully seated in its bay within the switch.
  • If using a power strip or UPS, ensure it is powered on and functioning.
• Fault LED On/Flashing:
  • This indicates a potential internal fault or an issue with the power input.
  • Try reseating the power supply.
  • If possible, test with a different power cord or AC outlet.
  • If the issue persists, the power supply may be faulty and require replacement.
• Switch Not Powering On (with power supply LED indicating normal operation):
  • The issue might be with the switch itself, not the power supply.
  • Consult the troubleshooting section of your Cisco Catalyst switch's documentation.

If these steps do not resolve the issue, contact Cisco technical support or your authorized reseller.

8. Specifications

Key technical specifications for the Cisco C3K-PWR-750WAC power supply:

9. Warranty Information

The Cisco C3K-PWR-750WAC power supply comes with a Five Year Advanced Replacement Warranty from Pure. For detailed terms and conditions, including how to claim warranty service, please refer to the official warranty documentation provided with your product or visit the Cisco support website.

10. Technical Support

For further assistance, technical support, or to report issues not covered in this manual, please contact Cisco support:

• Cisco Support Website: www.cisco.com/go/support
• Refer to your product's serial number when contacting support.