What Is the HCI-P-I8D25GF-M6=? Technical Brea
Hardware Profile and Design Intent The HCI-P-I8D2...
Overview of the PSU-12VDC-70W-GR=
The PSU-12VDC-70W-GR= is a ruggedized 70-watt DC power supply designed for Cisco industrial networking and IoT devices operating in harsh environments. Engineered to meet ETSI EN 300 019 and IEC 60068-2 standards, this PSU delivers stable 12V output for equipment deployed in manufacturing, transportation, and energy sectors. Unlike generic power supplies, it integrates natively with Cisco’s industrial hardware ecosystem, ensuring reliability in temperature extremes and high-vibration settings.
Core Technical Specifications
Electrical Performance
- Input Voltage: 100–240V AC (50/60 Hz), auto-sensing for global compatibility.
- Output: 12V DC ±2%, 5.83A max (70W continuous).
- Efficiency: 89% typical at 230V AC, compliant with ErP Lot 7 and DOE Level VI regulations.
- Protections: Over-voltage (14V cutoff), over-current, short-circuit, and thermal shutdown.
Mechanical and Environmental Design
- Housing: Aluminum alloy with IP40 ingress protection.
- Operating Temperature: -40°C to +70°C (derating to 50W at +60°C).
- Cooling: Fanless design with passive heat dissipation for noise-free operation.
- Mounting: DIN rail (TS35/7.5/15) or panel-mount via M4 screws.
Compatibility with Cisco Industrial Devices
The PSU-12VDC-70W-GR= is validated for use with:
- Cisco IR1100 Rugged Router: Supports dual PSUs for redundancy in critical infrastructure.
- Cisco IE3200/IE3300 Industrial Switches: Powers PoE (802.3at) ports for connected sensors and cameras.
- Cisco IC3000 Industrial Compute Gateway: Delivers stable voltage for edge computing workloads.
Critical Note: This PSU is incompatible with Cisco Catalyst 9000 switches or Meraki MS series due to differing connector types (3-pin Phoenix vs. 4-pin barrel).
Deployment Strategies for Mission-Critical Networks
Step 1: Power Redundancy Configuration
- Deploy two PSU-12VDC-70W-GR= units in N+1 redundancy mode for Cisco IR1100 routers.
- Use Cisco StackPower (where supported) to balance loads across multiple devices.
Step 2: Environmental Hardening
- Avoid mounting near heat sources (e.g., motor drives) to prevent thermal throttling.
- In high-humidity environments (≥95% non-condensing), apply conformal coating to DC output terminals.
Step 3: Voltage Monitoring and Alerts
- Integrate with Cisco DNA Center to track PSU health metrics (load %, temperature).
- Configure SNMP traps for voltage fluctuations beyond ±5% of nominal.
Addressing Common User Concerns
Q: Can this PSU handle input voltage surges in regions with unstable grids?
A: Yes. The built-in MOV (Metal Oxide Varistor) suppresses spikes up to 4kV (per IEC 61000-4-5). For added protection, pair with a UPS.
Q: Is the fanless design prone to overheating in enclosed cabinets?
A: The derating curve ensures safe operation up to +70°C, but ensure at least 2 cm of clearance around the unit for airflow.
Q: What is the MTBF (Mean Time Between Failures) of this PSU?
A: Lab-tested for 500,000 hours at +40°C ambient, aligning with Telcordia SR-332 Zone 4 standards.
Procurement and Support
For guaranteed performance and warranty coverage, source the PSU-12VDC-70W-GR= exclusively from authorized partners like [“PSU-12VDC-70W-GR=” link to (https://itmall.sale/product-category/cisco/). Third-party units often lack Cisco’s firmware-integrated diagnostics and may void device warranties.
Final Observations
The PSU-12VDC-70W-GR= exemplifies Cisco’s focus on industrial reliability over consumer-grade convenience. While its lack of hot-swappable connectors may challenge rapid replacements, the fanless architecture eliminates a common failure point in dusty environments. Future iterations could benefit from USB-C compatibility for hybrid office/OT deployments. Until then, it remains a cornerstone for powering Cisco’s edge infrastructure in settings where downtime is not an option.