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by Juniper
Product Line: Juniper PTX1000, PTX10001, PTX10002, AND PTX10003 Series
Product Type: Power supply
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Product Description

The JPSU-1600W-AC-AFO is a Juniper PTX1000 power supply offering a 1600 W AC power input with a system throughput of 3 Tbps and a forwarding capacity of up to 2 Bpps. It supports a maximum density of 288 10GbE ports, 72 40GbE ports, and 24 100GbE ports, enclosed within a 17.4 x 3.46 x 31 in frame that weighs 68 lb and occupies 2 U in rack space. Key features include an Intel Quad Core Ivy Bridge 2.5 GHz CPU, 32 Gb SDRAM, 24 Gb packet buffer, and 3 hot-swappable redundant fans for cooling, ensuring reliable performance and efficiency in high-demand environments.

FAQs for the JPSU-1600W-AC-AFO

  • What is the maximum power supply available for the PTX1000?
    The PTX1000 is equipped with a 1600 W AC power supply.
  • How does the system throughput of PTX1000 contribute to its performance?
    The system offers a throughput of 3 Tbps, enhancing data transmission efficiency and network performance.
  • What forwarding capacity does the PTX1000 support?
    It supports up to 2 billion packets per second (Bpps) forwarding capacity.
  • Can you detail the port density for 10GbE, 40GbE, and 100GbE on the PTX1000?
    The maximum port density is 288 for 10GbE, 72 for 40GbE, and 24 for 100GbE.
  • What are the physical dimensions of the PTX1000?
    Dimensions are 17.4 x 3.46 x 31 inches (44.2 x 8.8 x 78.7 cm), occupying 2 rack units.
  • Describe the processing and memory specifications of the PTX1000.
    It is powered by an Intel Quad Core Ivy Bridge 2.5 GHz CPU with 32 Gb SDRAM.
  • What is the typical power consumption of the PTX1000?
    Typical power draw is 1050 W, translating to 3583 BTU/hr.
  • How is the PTX1000 cooled?
    Cooling is managed by 3 hot-swappable redundant fans, ensuring front-to-back airflow.
  • What are the operating and storage temperature ranges for the PTX1000?
    Operating temperature ranges from 32° to 115° F (0° to 46° C), and storage temperature ranges from -40° to 158° F (-40° to 70° C).
  • What power efficiency does the PTX1000 offer?
    The power efficiency is rated at 0.4 watts per Gbps, ensuring energy-efficient operation.

Product Review

The Juniper JPSU-1600W-AC-AFO, designed for the PTX1000, offers a high system throughput of 3 Tbps and a forwarding capacity of up to 2 Bpps, supporting dense configurations up to 24 100GbE ports, which is beneficial for scaling network infrastructure. However, its substantial power draw, peaking at 1425W, alongside a considerable weight of 68 lb, requires careful consideration regarding power efficiency and rack space allocation. Additionally, the device's cooling system, equipped with three hot-swappable redundant fans, ensures reliable operation under varying temperature conditions, enhancing system resilience.


The Juniper JPSU-1600W-AC-AFO is a 1600 W AC power supply designed for the PTX1000 series, delivering high performance in power efficiency and operational capabilities. This power supply unit (PSU) is integral to maintaining the system's reliability and uptime, ensuring that network operations are seamless and resilient. With a system throughput of 3 Tbps and a forwarding capacity of up to 2 Bpps, the Juniper JPSU-1600W-AC-AFO stands out for its ability to handle extensive data loads efficiently. This PSU supports a maximum 10GbE port density of 288, 40GbE port density of 72, and 100GbE port density of 24, making it versatile for various network architectures and demands. Its dimensions are 17.4 x 3.46 x 31 inches (44.2 x 8.8 x 78.7 cm), and it occupies 2 rack units (U) in a standard equipment rack, weighing 68 lb (31 kg). The hardware is powered by an Intel Quad Core Ivy Bridge 2.5 GHz CPU and comes with 32 Gb SDRAM, ensuring robust processing capabilities. The power supply's maximum power draw is rated at 1425 W for both AC and DC inputs, with a typical power draw of 1050 W, translating to 4862 BTU/hr and 3583 BTU/hr, respectively. It features four 1600 watt power supplies, which can be either AC or DC, catering to different power input requirements. The device is equipped with three hot-swappable redundant fans for cooling, ensuring the system remains operational even if a fan fails, with front-to-back airflow.
  • Packet buffer size is 24 Gb, facilitating smooth data processing and transfer.
  • Latency is minimized to 2.5 μs within the Packet Forwarding Engine (PFE) and 5 μs between PFEs, enhancing the speed of data transmission.
  • The power efficiency is optimized at 0.4 watts per Gbps, reducing operational costs and supporting sustainable network operations.
The operating temperature range of the Juniper JPSU-1600W-AC-AFO is from 32° to 115° F (0° to 46° C), with a storage temperature range from -40° to 158° F (-40° to 70° C). It can operate at altitudes up to 10,000 feet, ensuring reliability in various environmental conditions. The operating relative humidity is between 5 to 90% (noncondensing), and for nonoperating conditions, it is between 5 to 95% (noncondensing), providing resilience against environmental fluctuations. In summary, the Juniper JPSU-1600W-AC-AFO is a critical component for networks demanding high throughput, extensive port density, and efficient power usage. Its design and specifications ensure that it can support the rigorous demands of modern data centers and networking environments, making it an essential part of the PTX1000 series' infrastructure.


Item Number Juniper JPSU-1600W-AC-AFO
Manufacturer Juniper
Device Model PTX1000 1600 W AC Power Unit
System Throughput 3 Terabits per second
Forwarding Rate Up to 2 Billion packets per second
Maximum Density for 10GbE Ports 288 Ports
Maximum Density for 40GbE Ports 72 Ports
Maximum Density for 100GbE Ports 24 Ports
Dimensions 17.4 x 3.46 x 31 inches (44.2 x 8.8 x 78.7 cm)
Height in Rack Units 2U
Mass 68 pounds (31 kilograms)
Processor Intel Quad-Core Ivy Bridge 2.5GHz
Memory 32GB SDRAM
Peak Power Consumption 1425 Watts / 4862 BTU per hour
Standard Power Consumption 1050 Watts / 3583 BTU per hour
Power Supply Capacity 4 x 1600W (AC/DC)
Cooling Mechanism 3 hot-swappable redundant fans, front-to-back airflow
Buffer Size 24GB
Network Latency 2.5μs within PFE, 5μs between PFEs
Power Efficiency 0.4 Watts per Gbps
Operational Temperature Range 32° to 115°F (0° to 46°C)
Storage Temperature Range -40° to 158°F (-40° to 70°C)
Maximum Operating Altitude 10,000 feet
Operating Humidity Range 5% to 90%, non-condensing
Non-Operating Humidity Range 5% to 95%, non-condensing

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