DC power supply unit (PSU). Front-to-back (AFO) airflow—port-side intake. Qualified for 2RU QFX5240, QFX5241, QFX5241E switches with JPSU slots. Official Juniper FRU. Self-cooling design with internal fans (4,000–28,000 RPM). Hot-swappable. Blue pull-tab. Captive screws. No tools required.
Power & Thermal Specs
- Input: -48VDC nominal (-40V to -72VDC)
- Supports N+1 redundancy in QFX5240 chassis
- PSU fan speed controlled by internal firmware based on load and temperature
Airflow & Cooling
- AFO (front-to-back, port-side intake)
- Matches QFX5240-2U-FANAO fan modules
- Exhaust toward rear FRU side
