Description
The HPE Aruba Networking 4000i POE 54VDC 240W 12–48VDC DIN Power Supply (JL821A) is a rugged and reliable DC power supply designed to deliver high-efficiency 240W output for industrial and harsh deployment environments. Supporting input voltages ranging from 12 to 48 VDC, this power supply is ideal for powering Aruba's rugged switches and access points. With compact dimensions and DIN rail mounting support, it offers easy integration into space-constrained or outdoor network setups.
| Specification | Details |
|---|---|
| Model Number | JL821A |
| Product Name | HPE Aruba Networking 4000i POE 54VDC 240W 12–48VDC DIN Power Supply |
| Power Output | 240W @ 54VDC |
| Input Voltage | 12–48 VDC |
| Use Case | Power supply for select HPE Aruba Networking products in harsh environments |
| Mounting Type | DIN Rail |
| Weight | 399.2 g (0.9 lb) |
| Dimensions (W x D x H) | 10.9 × 4.1 × 11.4 cm (4.3 × 1.6 × 4.5 in) |
| Environmental Suitability | Designed for industrial and outdoor deployment |
Payment & Security
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
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