Description
The Cisco PWR-3900-POE is a Power over Ethernet (PoE) power supply module designed specifically for the Cisco 3900 Series Integrated Services Routers. Built to provide efficient and reliable power to connected PoE-enabled devices, this unit supports the delivery of inline power to IP phones, wireless access points, and other network endpoints. Its modular design allows for seamless installation into compatible router chassis, helping to reduce cable clutter and centralize power management. The unit is ideal for enterprise environments seeking to consolidate network infrastructure while maintaining flexibility and scalability.
Technically, the PWR-3900-POE delivers up to 1000 watts of PoE power when used in conjunction with an external AC power source and the appropriate PoE network interface modules (NIMs). It supports IEEE 802.3af and 802.3at standards, ensuring compatibility with a wide range of devices. The module is hot-swappable for minimal disruption during maintenance or upgrades, and features integrated status LEDs for easy monitoring. When purchasing used, it’s important to confirm the unit is tested, includes all necessary connectors, and is free from physical damage to ensure continued performance and reliability.