Cisco RPS-ADPTR-2921-51 2921/2951 Redundant P/S RPS Adapter RPSADPTR292151

Description:

The Cisco RPS-ADPTR-2921-51 redundant power supply adapter is used with Cisco 2921 and 2951 Integrated Services Routers to connect the router to an external Cisco Redundant Power System for backup power protection. Commonly installed in enterprise network racks, branch office infrastructure, and telecommunications environments where uninterrupted router operation is required. Network administrators and system integrators use this adapter for power redundancy deployment, infrastructure reliability upgrades, and replacement of damaged or missing redundant power adapters.

Applications:

The Cisco RPS-ADPTR-2921-51 adapter is commonly deployed in enterprise branch networks and critical communication environments where Cisco 2900 Series routers must remain operational during power supply failures. It is used in corporate offices, financial institutions, healthcare networks, and government facilities to connect routers to external redundant power systems, ensuring network uptime and protecting critical routing infrastructure from power interruptions.

Technical Specifications:

• Manufacturer: Cisco Systems
• Manufacturer Part Number: RPS-ADPTR-2921-51
• Product Type: Redundant Power Supply Adapter
• Compatibility: Cisco 2921 and Cisco 2951 Integrated Services Routers
• Function: Connects router to Cisco Redundant Power System (RPS)
• Interface Type: RPS connection port adapter
• Deployment: External redundant power integration
• Installation: Rear chassis adapter connection
• Form Factor: External power adapter interface module
• Supported Systems: Cisco Redundant Power System units
• Application: Router power redundancy and backup power support

Common Replacements:

• Cisco RPS-ADPTR-2921-52 Redundant Power Adapter
• Cisco RPS-2300 Redundant Power System
• Cisco PWR-2921-51-AC Router Power Supply