• Vibrant pink glossy Juniper fruit sticker on JPSU-550-DCAFO PSU
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Juniper

Juniper JPSU-550-DCAFO | 550W DC PSU | EX4300 | Front-to-back airflow (AFO) | Hot-swap | -48 VDC telco

JPSU-550-DCAFO

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Description

Telco-grade 550W DC power supply for EX4300 Series switches with front-to-back (AFO) airflow. Supports -48 VDC environments, hot swapping, and 1+1 redundancy.

Features

- 550W DC capacity for -48 VDC telco environments
- Front-to-back airflow (AFO) for data-center alignment
- Hot-swappable design minimizes downtime
- 1+1 redundancy support for high availability
- Optimizes PoE power on DC-fed EX4300 PoE deployments
- Reliable FRU replacement with straightforward installation

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Power capacity: 550 W
- Input type: DC (-48 VDC nominal)
- DC input range: -40 to -72 VDC
- Airflow: Front-to-back (AFO)
- Form factor: Field-replaceable PSU module for EX4300 Series
- Hot-swappable: Yes
- Redundancy: Supports 1+1 PSU redundancy
- Compatibility: EX4300 Series switches
- DC feed: Telco -48 VDC
- Use case: DC-powered sites and PoE support on EX4300 PoE models

FAQs

Q: What DC voltage does this PSU require?
A: It supports a -48 VDC nominal feed (typical range -40 to -72 VDC).

Q: What is the airflow direction?
A: Front-to-back (AFO). Match this with the switch’s fan modules for proper cooling.

Q: Is it hot-swappable?
A: Yes, you can replace it without powering down the switch.

Q: Can I mix AC and DC PSUs?
A: No. Do not mix AC and DC PSU types within the same chassis.

Q: Does this affect PoE power?
A: Yes, PSU capacity contributes to the available PoE budget on PoE-capable EX4300 models.

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