Cisco RD-9800S-K9 High-Density Digital Cluste
Advanced RF Subsystem Design The ​​RD-9800S-K9​â€...
​​Core Technical Specifications and Deployment Scope​​
The ​​Cisco Catalyst C9105AXWT-S​​ is a ​​ruggedized Wi-Fi 6E (802.11ax) access point​​ engineered for ​​hazardous industrial environments​​ requiring intrinsic safety. Key differentiators include:
- ​​IECEx/ATEX Zone 1 Certification​​: Operates safely in explosive gas/dust atmospheres (e.g., methane, coal dust)
- ​​6 GHz Ultra-Wideband Support​​: Utilizes 160 MHz channels in 5925-7125 MHz bands for low-latency industrial IoT
- ​​Stainless Steel Enclosure​​: IP69K-rated against high-pressure steam cleaning and chemical splashes
Designed for ​​pharmaceutical cleanrooms​​, ​​underground mining​​, and ​​ammonia refrigeration facilities​​, it delivers ​​4.3 Gbps aggregate throughput​​ while maintaining ≤1 ms jitter for PROFINET/Modbus TCP industrial protocols.
​​Performance Comparison: C9105AXWT-S vs. C9105AXWT-D​​
| C9105AXWT-S | C9105AXWT-D | |
|---|---|---|
| ​​Hazardous Certification​​ | Zone 1 (IECEx) | Zone 2 (ATEX) |
| ​​Frequency Bands​​ | 2.4/5/6 GHz | 2.4/5 GHz |
| ​​Max EIRP​​ | 24 dBm (6 GHz) | 33 dBm (5 GHz) |
| ​​Enclosure Material​​ | 316L Stainless Steel | Cast Aluminum |
| ​​Conduit Ports​​ | 2x M20 threaded | 1x NEMA 4X |
The ​​C9105AXWT-S​​ trades peak transmit power for ​​intrinsic safety​​ in Zone 1 areas, leveraging 6 GHz’s cleaner spectrum for deterministic wireless control.
​​Overlooked Safety and Configuration Features​​
Three critical but underdocumented capabilities:
- ​​Galvanic Isolation​​: 2500V AC isolation between RF and power circuits to prevent ground loops in substations
- ​​Non-Sparking Antennas​​: Fiberglass-reinforced radomes with <0.02 mJ ignition energy threshold
- ​​UL 844 Compliance​​: Certified for Class I Div 1 environments with Group A (acetylene) gas protection
​​Procurement Best Practices via Itmall.sale​​
When sourcing the C9105AXWT-S, verify:
- ​​Explosion Protection Documentation​​: IECEx System Certificate and Entity Parameters for installation audits
- ​​Cisco Industrial IoT License​​: Enables ISA-95 hierarchy mapping for OT/IT convergence
- ​​Conduit Sealing Kits​​: Optional epoxy-filled cable glands meeting NEC 500.8 standards
​​Solving Zone 1 Wireless Challenges​​
The C9105AXWT-S addresses two life-critical industrial needs:
- ​​Deterministic Spectrum Sharing​​: Time-Sensitive Networking (TSN) over 6 GHz coordinates robotic arms and AGVs without interference
- ​​Gas Group Flexibility​​: Field-upgradable firmware supports Group IIC (hydrogen) to Group IIB (ethylene) without hardware swaps
In a recent deployment at a lithium battery plant, the ​​C9105AXWT-S’s 6 GHz band​​ eliminated RF interference from high-voltage arcing—a persistent issue with 5 GHz models. While its ​​stainless steel build doubles the weight​​ of aluminum APs, the ​​corrosion-resistant passive cooling​​ ensures 10+ year lifespans in chlorine-rich environments. Always conduct a hazardous area classification audit and review NFPA 70 Article 501 compliance before commissioning.