Enterasys STK-RPS-150PS P0973BP: Power Redundancy for High Availability
Reliability at the Edge
In modern enterprise networking, the edge switch is the critical point of entry for users and devices. The Enterasys STK-RPS-150PS, identified by part number P0973BP, is engineered to provide an additional layer of protection for these vital assets. By acting as an external redundant power source, it ensures that a hardware failure in the switch's primary power unit does not result in a localized network blackout.
Power Output and Efficiency
The STK-RPS-150PS delivers a steady 150 Watts of DC power. This output is specifically tuned to support the power requirements of Enterasys A-series and B-series stackable switches. The module operates with high energy efficiency, minimizing heat dissipation while providing the instantaneous current needed during peak switch loads. Its design adheres to strict voltage regulation standards to protect sensitive internal ASICs from power fluctuations.
Seamless Failover Mechanism
The core value of the P0973BP is its "hitless" failover capability. When connected to a compatible switch via the dedicated RPS cable, the module monitors the switch's internal power health. Should the internal voltage drop below the threshold, the STK-RPS-150PS takes over the load immediately without causing the switch to reboot. This ensures that active sessions, such as VoIP calls or database transactions, remain uninterrupted.
Mechanical Design and Rack Integration
The module is housed in a compact chassis that can be integrated into an RPS shelf or mounted alongside switches in a standard 19-inch rack. The front panel features LED indicators that provide real-time status updates on AC input health and DC output activity. This allows network technicians to perform quick visual inspections of power health during routine maintenance cycles.
Environmental and Safety Compliance
Designed for long-term industrial use, the STK-RPS-150PS is built with high-quality components that boast a high Mean Time Between Failures (MTBF). It complies with international safety standards including UL, CE, and RoHS. Its cooling system is optimized for quiet operation, making it suitable for wiring closets located in office environments where noise control is necessary.
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