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Q
What is a Cisco Power Supply?
A
A Cisco Power Supply is a dedicated module that delivers stable, regulated power to Cisco networking devices, ensuring optimal performance and reliability.
Q
How do I choose the right Cisco Power Supply for my device?
A
Select a Cisco Power Supply by matching your device’s model number and total wattage requirements, then confirm compatibility in Cisco’s hardware installation guide.
Q
What wattage options are available for Cisco Power Supplies?
A
Cisco Power Supplies range from 150 W to 3,000 W, covering entry-level switches, routers, firewalls, and high-density data center appliances.
Q
Are Cisco Power Supplies hot-swappable?
A
Yes. Hot-swappable Cisco Power Supplies allow you to replace a faulty unit without shutting down the device, minimizing network downtime.
Q
How do I install a Cisco Power Supply?
A
Power off the device, slide the Cisco Power Supply into the module bay until it clicks, then reconnect the AC or DC power cord and power on.
Q
How do I check the health of my Cisco Power Supply?
A
Use the Cisco IOS command ‘show environment power’ or view the device’s front-panel LEDs to verify voltage, load, and temperature status.
Q
What warranty does Cisco offer on its Power Supplies?
A
Cisco Power Supplies carry a one-year limited hardware warranty, with extended support options available through Cisco SMARTnet Service.
Q
Can I use third-party power supplies with Cisco equipment?
A
Cisco recommends using genuine Cisco Power Supplies to ensure full compatibility, warranty protection, and compliance with safety standards.
Q
How do I replace a failed Cisco Power Supply?
A
Power down the device if non-hot-swappable, remove the defective module, insert a new Cisco Power Supply, reconnect power, and verify via status LEDs.
Q
What is power redundancy in Cisco devices?
A
Power redundancy uses dual or multiple Cisco Power Supplies in active-standby or load-sharing mode to eliminate single points of failure.
Q
Are Cisco Power Supplies energy efficient?
A
Yes. Cisco Power Supplies are designed to meet ENERGY STAR® and 80 PLUS® efficiency standards, reducing power consumption and operating costs.
Q
How do I troubleshoot Cisco Power Supply issues?
A
Check AC/DC input, verify LED indicators, run ‘show environment power’ in CLI, and swap modules to isolate failures before contacting Cisco TAC.
Q
Where can I buy genuine Cisco Power Supplies?
A
Purchase genuine Cisco Power Supplies through authorized Cisco partners, resellers, or the Cisco Commerce Workspace for guaranteed authenticity.
Q
What certifications do Cisco Power Supplies have?
A
Cisco Power Supplies hold UL, CE, ENERGY STAR®, and RoHS certifications, ensuring compliance with global safety, environmental, and efficiency standards.
Q
Can I mix different models of Cisco Power Supplies in one chassis?
A
Mixing different Cisco Power Supply models is not recommended. Use identical modules to maintain balanced load distribution and full redundancy.
Q
How do I update firmware for an intelligent Cisco Power Supply?
A
Connect to the device’s management interface, upload the latest firmware via Cisco IOS or CIMC, and follow on-screen prompts to complete the update.
