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Overview of the CP-3905-HS= The CP-3905-HS=...
Core Capabilities of the 1783-MMX6T2S
The Cisco 1783-MMX6T2S is a 16-port managed industrial Ethernet switch optimized for harsh environments requiring dual 10G uplinks, 802.3bt PoE++ (90W/port), and sub-1ms network redundancy. Designed for Industry 4.0 deployments, it operates in -40°C to 85°C with IP67-rated protection against dust/water ingress, aligning with IEC 61850-3 for smart grids and ATEX Zone 2 for explosive atmospheres.
Technical Differentiation
- Port Configuration: 12x 10/100/1000BASE-T PoE++ ports + 2x 10G SFP+ uplinks + 2x 1G SFP redundancy ports
- Power Efficiency: 720W total PoE++ budget for high-density IoT deployments (e.g., 5G small cells, thermal cameras)
- Fault Tolerance: HSR (High-availability Seamless Redundancy) and DLR (Device Level Ring) with <1ms failover
- Security: MACsec-256 encryption, Cisco TrustSec microsegmentation, and Secure Boot against firmware tampering
1783-MMX6T2S vs. Conventional Industrial Switches
| Feature | 1783-MMX6T2S | Standard Industrial Switches |
|---|---|---|
| PoE Capacity | 90W/port (802.3bt) | 30W/port (802.3at) |
| Latency-Critical Redundancy | HSR + DLR dual-layer protocols | Single RSTP (50–100ms recovery) |
| Environmental Hardening | IP67, MIL-STD-810G vibration | IP30, limited shock resistance |
| Ecosystem Integration | Cisco Edge Intelligence + IoT Field Director | Third-party tools required |
Mission-Critical Applications
- Offshore Wind Farms: Survives salt fog corrosion while synchronizing SCADA systems across turbines via 10G uplinks.
- Mining Automation: Powers autonomous drilling rigs and collision sensors with -40°C cold-start capability.
- Railway Signaling: Delivers 5g vibration resistance for trackside CCTV and axle counters.
Addressing Operational Concerns
Q: Can it backward-support RS-485 PLCs?
Yes—via Modbus/TCP gateways (sold separately) for legacy industrial protocols.
Q: How does HSR improve uptime over traditional redundancy?
HSR eliminates packet loss during failovers by maintaining dual active data paths—critical for substation protection relays.
Q: Is zero-trust feasible in air-gapped OT networks?
Port-based ACLs and MACsec-256 enforce device authentication and traffic isolation without cloud dependencies.
Procurement and Support
For verified refurbished units or bulk orders, visit “1783-MMX6T2S”.
Engineering Perspective
The 1783-MMX6T2S redefines industrial networking by merging carrier-grade reliability with multi-gigabit scalability—a necessity for latency-sensitive automation. While its initial cost exceeds conventional switches, the dual 10G uplinks and HSR/DLR redundancy eliminate unplanned downtime in sectors where outages cost $500K/hour. For engineers modernizing brownfield facilities, this isn’t just hardware—it’s the operational backbone bridging legacy OT systems and modern IT demands.