Cisco PWR-ME3KX-DC
ME3600X/ME3800X DC Power Supply
Product Highlights
Service provider and enterprise metro Ethernet deployments often rely on centralized DC power plants — and your switching infrastructure needs a power supply that integrates seamlessly with that architecture. The Cisco PWR-ME3KX-DC is a field-replaceable DC power supply and fan module purpose-built for the Cisco ME 3600X and ME 3800X Series Carrier Ethernet Switch Routers.
Supporting a wide DC input voltage range of 18–32 VDC or 36–72 VDC, this module connects to your DC power plant via a secure terminal block, eliminating the need for AC-to-DC conversion at the rack. The integrated fan tray delivers active cooling alongside power delivery, reducing the number of field-replaceable units you need to stock.
Designed for redundant operation, two PWR-ME3KX-DC modules can be installed in a single chassis to ensure uninterrupted service if one supply fails — a critical requirement for always-on carrier Ethernet access networks. Whether you are maintaining an existing ME 3600X/ME 3800X deployment or standardizing spares across multiple sites, the PWR-ME3KX-DC provides the reliability and flexibility your DC-powered environment demands.
Note: The Cisco ME 3800X platform has reached End-of-Life. This power supply remains a valuable spare for extending the operational life of installed ME 3600X and ME 3800X infrastructure.
Features & Benefits
Flexible DC Input Range
The PWR-ME3KX-DC accepts 18–32 VDC or 36–72 VDC input, accommodating both nominal −24 V and −48 V DC plant configurations. This dual-range flexibility means a single spare SKU covers multiple DC power environments, simplifying procurement and reducing warehouse complexity.
Field-Replaceable Power & Cooling
Power supply and fan module are combined into one field-replaceable unit. Technicians can swap the module on-site without specialized tools, minimizing mean time to repair (MTTR). The integrated design also reduces the number of discrete spares required per site.
Redundant Power Architecture
Install two PWR-ME3KX-DC modules in a single ME 3600X or ME 3800X chassis for 1+1 power redundancy. If one supply fails, the second maintains full system operation — essential for carrier-grade SLAs and mission-critical metro Ethernet access networks.
Carrier-Grade Reliability
With an MTBF exceeding 307,000 hours at 48 V / 25 °C, the PWR-ME3KX-DC is engineered for the continuous uptime demands of service provider central offices and enterprise wiring closets. Its operating temperature range of 0 °C to 40 °C supports a wide variety of deployment environments.
Deployment Scenarios
Service Provider Central Office / Metro Ethernet Access
Telecom central offices and metro Ethernet PoPs typically run on −48 VDC plant power. The PWR-ME3KX-DC integrates directly with this infrastructure, powering ME 3600X and ME 3800X switches that deliver Carrier Ethernet services to business and residential subscribers.
Enterprise Campus with DC Power Plant
Large enterprise campuses that have standardized on DC power distribution benefit from the PWR-ME3KX-DC's wide input range. It enables consistent power delivery to ME 3600X access switches without requiring per-rack AC conversion.
Spares & Lifecycle Extension
For organizations with an installed base of ME 3600X/ME 3800X switches, stocking PWR-ME3KX-DC modules as spares extends the operational life of existing infrastructure. A quick field swap restores service without a full platform replacement.
General
Electrical
Reliability
Physical
Environmental
Compatibility Notes
Compatible Platforms
- Cisco ME 3600X-24TS-M — ME 3600X 24-port copper Carrier Ethernet Switch Router
- Cisco ME 3600X-24FS-M — ME 3600X 24-port fiber Carrier Ethernet Switch Router
- Cisco ME 3800X-24FS-M — ME 3800X 24-port fiber Carrier Ethernet Switch Router
Notes
- The ME 3800X platform has reached End-of-Life (EOL). Verify current Cisco support and software availability before deployment.
- The AC variant of this power supply is PWR-ME3KX-AC. Ensure you select the correct input type for your power plant.
- A standalone spare fan tray (ME-FANTRAY=) is also available if only the fan module requires replacement.
Downloads & Resources
Frequently Asked Questions
| Part Number | Product | Key Difference |
|---|---|---|
| PWR-ME3KX-AC | ME3600X/ME3800X AC Power Supply | AC input (100–240 V) variant for sites without DC power plant infrastructure |
| PWR-ME3KX-DC= | ME3600X/ME3800X DC Power Supply (Spare) | Same DC power supply sold as an individually orderable spare unit (= suffix) |
| ME-FANTRAY= | ME 3600X/ME 3800X Spare Fan Tray | Standalone replacement fan tray — use when only the cooling module needs replacement |
