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by Juniper
Product Line: Juniper EX-PWR-320-AC
Product Type: Power supply unit
Original price $0.00 - Original price $126.00
Original price
$0.00 - $126.00
Current price $126.00
Title: Used

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Product Description

The EX-PWR-320-AC is equipped with a 320 W AC Power Supply Unit (PSU) that supports hot-plug and redundancy, with an input voltage range of 36 V - 72 V and dual input feed, ensuring consistent power delivery. It features a 128 Gbps Virtual Chassis backplane, along with versatile connectivity options including a 4-port GbE module and a 2-port 10GbE module, both with pluggable optics, and a dual-mode module supporting both 10GbE SFP+ and 4-port GbE SFP. Designed for durability and efficient operation, it operates within a temperature range of 32° to 113° F, supports up to 10,000 ft operating altitude, and has a packet switching capacity of 88 Gbps.

Key Feature for the EX-PWR-320-AC

  • What is the input voltage range for the 320 W AC Power Supply Unit?
    The input voltage range is 36 V to 72 V.
  • How does the PSU support redundancy?
    The power supply unit (PSU) is designed for hot-plug and redundant operation, allowing for continuous power supply without interruption.
  • Can the 320 W AC PSU handle both 110 V and 220 V AC input voltages?
    Yes, it supports AC input voltages of both 110 V and 220 V.
  • What are the dimensions of the device equipped with the 320 W AC PSU?
    Dimensions are 17.41 x 1.72 x 16.43 inches (44.21 x 4.32 x 41.73 cm).
  • What is the airflow specification for the 320 W AC PSU?
    Airflow is specified at 20.3 cubic feet per minute (cfm).
  • Describe the backplane capacity of this device.
    The backplane has a 128 Gbps Virtual Chassis capacity.
  • What is the operating temperature range for this hardware?
    The operating temperature range is 32° to 113° F (0° to 45° C).
  • How does the device handle network module expansions?
    It includes a 4-port GbE module, a 2-port 10GbE module, and a dual-mode module supporting both 2-port 10GbE SFP+ and 4-port GbE SFP with pluggable optics.
  • What are the storage temperature limits for this device?
    Storage temperature ranges from -40° to 158° F (-40° to 70° C).
  • What are the CPU and memory specifications?
    The device is equipped with a 1 GHz PowerPC CPU and 1 GB of DRAM with ECC.

Product Review

The Juniper EX-PWR-320-AC power supply unit offers compatibility with a wide input voltage range and supports hot-plug and redundancy, enhancing system reliability. However, its maximum output of 320W may limit expansion capabilities in power-intensive environments. The unit's support for dual input feed and high switching capacities is advantageous for high-availability network setups, though the operating temperature range could be restrictive for environments with extreme conditions.


The Juniper EX-PWR-320-AC is an AC Power Supply Unit designed to deliver efficient power management and operation for networking hardware. This PSU provides a power output of 320W and is engineered for hot-plug and redundant power supply systems, ensuring continuous operation and minimal downtime for network infrastructures. It supports an input voltage range from 36V to 72V with dual input feed capabilities, accommodating various electrical environments and enhancing system reliability. This power supply unit is compatible with a backplane that supports up to 128Gbps Virtual Chassis configurations, facilitating high-speed data transfer and connectivity. It includes a 4-port GbE module and a 2-port 10GbE module, both equipped with pluggable optics for SFP and XFP, respectively. Additionally, there's a dual-mode module that supports either 2-port 10GbE SFP+ or 4-port GbE SFP, offering flexibility in network design and expansion. Key hardware specifications include: - Dimensions of 17.41 x 1.72 x 16.43 inches, fitting into a 1 Rack Unit (RU) space. - An airflow rate of 20.3 cubic feet per minute, contributing to efficient cooling and operation. - The system is powered by a 1GHz PowerPC CPU and contains 1GB of DRAM with ECC, ensuring reliable and fast processing capabilities. The unit operates effectively within a temperature range of 32° to 113° F and can be stored in temperatures ranging from -40° to 158° F. It is designed to function up to an altitude of 10,000 feet while operating and up to 16,000 feet when not in use. The relative humidity levels for operation are set between 10% to 85%, and for non-operating conditions, it can withstand humidity from 0% to 95%, all non-condensing. This PSU is not only built for performance but also for durability and resilience in various environmental conditions, making it a suitable choice for a wide range of networking setups. Its packet switching capacities reach up to 88Gbps, allowing for significant data handling capabilities, essential for modern, high-demand network environments. In summary, the Juniper EX-PWR-320-AC is a versatile and dependable power supply unit that offers: - A 320W AC output power within a dual input feed system for enhanced reliability. - Compatibility with high-speed backplane configurations and various optical modules for flexible network design. - Robust physical and operational specifications, including efficient cooling, wide temperature and humidity tolerance, and high packet switching capacities. Designed to meet the needs of complex and demanding network infrastructures, this PSU provides a solid foundation for supporting high-performance networking equipment and applications.


Model NumberJuniper EX-PWR-320-AC
Type320 Watt AC Power Supply Unit
FeaturesSupports hot-swapping and redundancy
Primary Input Voltage220 Volts AC
Secondary Input Voltage110 Volts AC
Output Power320 Watts AC
Voltage Input Range36 Volts to 72 Volts
Feed TypeSupports dual input feeds
Interconnect Capacity128 Gbps through Virtual Chassis technology
4-port GbE ConfigurationIncludes SFP optic slots
2-port 10GbE ConfigurationIncludes XFP optic slots
Hybrid 10GbE/GbE Configuration2-port 10GbE SFP+ or 4-port GbE SFP with flexible SFP+/SFP optics
Physical DimensionsWidth: 17.41 in, Height: 1.72 in, Depth: 16.43 in
Unit Height1 Rack Unit (RU)
Depth Including Power Supply UnitsIncludes 320 W AC and 190 W DC PSU dimensions
Cooling Airflow20.3 cubic feet per minute (cfm)
Memory1 GB DRAM with Error-Correcting Code (ECC)
Processor1 GHz PowerPC
Operational Temperature32°F to 113°F (0°C to 45°C)
Storage Temperature-40°F to 158°F (-40°C to 70°C)
Maximum Operating Altitude10,000 feet (3,049 meters)
Maximum Non-operating Altitude16,000 feet (4,877 meters)
Humidity during Operation10% to 85%, non-condensing
Humidity during Storage0% to 95%, non-condensing
Switching Capacity88 Gigabits per second (Gbps)

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