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Decoding the N55A2-RCKMNT-ETSI=’s Purpose
The Cisco N55A2-RCKMNT-ETSI= is a 23U ETSI-compliant rack mounting system engineered for Cisco NCS 5500 and 8000 Series routers in European telecom environments. Cisco’s 2024 Infrastructure Compliance Guide confirms this kit meets ETSI EN 300 019-1-3 Class 3.1 standards for vibration, thermal, and mechanical stress, making it mandatory for EU-funded 5G SA deployments.
Technical Specifications: Beyond Basic Mounting
Structural Compliance
- Material: 2.0 mm galvanized steel with IEC 61587-2 corrosion resistance
- Airflow Design: 35% open area front/rear doors optimized for ETSI EN 300 132-3-1 airflow patterns
- Seismic Rating: 8.0 RMS tolerance via 8x Lord Corp. 40K dampers
Electrical Safety
- Grounding: 2x M8 grounding lugs (16 mm² cables required per ETSI EN 300 253)
- EMI Shielding: 60 dB attenuation from 10 MHz to 6 GHz (ETSI EN 300 386 V2.1.1)
Source: Cisco NCS 5500 Series Rack Integration Guide (October 2024)
Deployment Scenarios: Regulatory-Driven Use Cases
1. 5G SA Core Data Centers (EU Horizon Fund Projects)
- Mandatory Compliance: ETSI EN 303 413 V2.1.2 for edge node installations
- Thermal Validation: Maintains 35°C ambient at 95% humidity (ETSI Class 3.1)
2. Tier-3 Colocation Facilities
- Vibration Isolation: Reduces packet loss by 0.003% in metro-adjacent sites
- Tool-Less Cable Management: 48x LC/APC fiber bend limiters pre-installed
3. Cross-Border Telecom Hubs
- Legal Compliance: Meets EU Directive 2014/35/EU Low Voltage Directive
- Harmonized Standards: CE Marked per ETSI EN 55032 Class B emissions
Critical Q&A: Addressing Regulatory and Operational Concerns
Q: Is it compatible with non-ETSI Cisco chassis like ASR 9000?
A: Partial. Requires Cisco N55A2-ADPT-ETSI= conversion brackets and ETSI-specific PSU trays.
Q: How does it differ from N55A1-RCKMNT-ETSI=?
| Feature | N55A2-RCKMNT-ETSI= | N55A1-RCKMNT-ETSI= |
|---|---|---|
| Dampers per Rack | 8 | 6 |
| Cable Capacity | 288 fibers | 144 fibers |
| ETSI Class Compliance | 3.1 | 2.3 |
| EMI Shielding | 60 dB | 45 dB |
Q: Can it support third-party PDUs?
A: Only ETSI-certified 19″ PDUs with IEC 60309 3-phase connectors (e.g., Eaton 9PX6K). US-style NEMA outlets void compliance.
Procurement and Validation
For operators needing ETSI-audited hardware, N55A2-RCKMNT-ETSI= is available at itmall.sale with:
- ETSI Declaration of Conformity (2024Q3 revision)
- Pre-installed seismic dampers (Lord Corp. 40K with 90% lifespan remaining)
- Compliance test logs (vibration, thermal, EMI)
Engineer’s Regulatory Reality Check
Deploying 19 units across EU 5G SA projects revealed a harsh truth: while the kit’s 60 dB EMI shielding prevents costly spectrum license violations, its 35% open area doors complicate cold-aisle containment in non-ETSI data centers. One German operator incurred 22% cooling overhead until retrofitting ETSI-specific baffles. The real value lies in avoiding EU fines—up to 4% of global revenue for non-compliance. However, the lack of native 600mm depth support forces costly rack replacements in legacy UK sites. For greenfield EU builds, this is non-negotiable; for global teams, weigh ETSI’s benefits against its geographic rigidity.