Product Overview

The Extreme Networks X440-48P-10G delivers 1005 W of redundant power for selected Extreme Networks stackable switches with 802.3at PoE support. It supports backup power, load sharing, and additional PoE capacity, helping network switches maintain reliable power for connected devices.

If a compatible switch loses power from its internal supply, the unit can deliver up to 1005 W of operating power, including system and PoE power. This capability supports network environments that require continuous operation and dependable PoE delivery.

Technical Specifications

These specifications come from Extreme Networks technical documentation for the product.

Key Features

1005 W Power Capacity

The power supply delivers up to 1005 W for supported PoE networking equipment. In the relevant operating configuration, Extreme Networks specifies up to 180 W for system power and 740 W for PoE power.

Redundant and Load-Sharing Operation

The unit supports backup power and load sharing. It also adds PoE capacity, giving network administrators more flexibility when they plan power arrangements for compatible switches.

Dual Voltage DC Output

The unit provides -55 VDC and +12 VDC outputs. The -55 VDC output supports PoE operation, while the +12 VDC output supports system power requirements.

Status Monitoring

Two front-panel indicators help operators monitor the power supply. The AC OK LED shows whether the AC input remains within the normal operating range. The DC OK LED confirms successful 55 VDC delivery.

Physical Design

The compact external power supply includes front-panel status LEDs, cooling fans, an AC input connector, and a handle. An 18-pin redundant power connector on the rear connects the unit to compatible network equipment.

The power supply also fits the STK-RPS-1005CH3 three-slot modular shelf for rack deployment. The shelf fits a standard 19-inch rack and supports centralized network equipment installation.

Compatible Network Applications

The unit supports selected Extreme Networks stackable switches with 802.3at PoE. Extreme Networks documentation specifically lists the X440-G2-48p-10GE4 among compatible switch configurations.

Typical application environments include:

• Enterprise network infrastructure
• PoE access networks
• Campus networking
• IP telephone deployments
• Wireless access point networks
• Security camera systems
• Industrial and commercial Ethernet networks
• Network installations requiring additional power redundancy

Installation Notes

Follow proper installation procedures when connecting an RPS to a network switch. Extreme Networks recommends turning off both the redundant power supply and the switch before connecting the RPS cable. After you complete the connection, turn on the RPS first and then turn on the switch.

For rack installation, mount the STK-RPS-1005CH3 shelf securely in a 19-inch rack. Then insert the power supply into an available shelf bay and tighten the captive screws.

Use only the approved RPS cable supplied for the product. Extreme Networks warns that non-approved cables may affect safety and warranty coverage.

Maintenance Recommendations

Keep the cooling fan openings free from dust and obstructions to support reliable long-term operation. Maintain the installation environment within the specified temperature and humidity ranges.

During routine maintenance, technicians can use the front-panel LEDs to identify abnormal conditions. If the AC OK indicator turns off, inspect the AC input. If the DC OK indicator turns off, inspect the power supply and connected equipment for possible faults.

Why Choose This Redundant Power Supply?

This power supply suits organizations that need additional power protection for compatible Extreme Networks PoE switches. Its 1005 W capacity, redundant operation, load-sharing capability, and dedicated PoE support make it suitable for network infrastructures that depend on stable power availability.

For replacement projects, maintenance programs, and spare-parts inventories, the unit provides a valuable power option for supported Extreme Networks switching platforms.