Key connectivity requirements for Industrial IoT in real-world deployments
By Nick Dutton
PUBLISHED 7 Apr 2026

Criteria | Wired connectivity | Wireless connectivity |
|---|---|---|
Installation complexity and cost | Wired connectivityOften higher in retrofit scenarios due to cabling, routing, and installation labor | Wireless connectivityOften lower and faster to deploy in retrofit scenarios, especially where cabling is difficult, access is constrained or downtime is expensive |
Flexibility / retrofit suitability | Wired connectivityLower flexibility once installed; changes may require rework or additional cable runs | Wireless connectivityHigher flexibility for phased rollout, asset additions and layout changes, with less disruption to existing operations |
Latency | Wired connectivityCan be very low, especially in fixed infrastructure designs | Wireless connectivityOften suitable for many condition monitoring and monitoring/control use cases, depending on architecture, update rates and network design |
Reliability | Wired connectivityCan be very strong where cabling is practical, protected and maintainable | Wireless connectivityCan be highly reliable when designed for the environment, with network design, redundancy and propagation planning aligned to the use case |
Scalability | Wired connectivityExpanding coverage can require significant and costly wiring, installation time and physical access | Wireless connectivityOften easier to scale physically, but scalability depends on architecture and how the network handles growth in traffic and device count |
Security | Wired connectivityMature controls available, with performance depending on implementation, segmentation and operational discipline | Wireless connectivityStrong security is achievable, with modern cryptography and good lifecycle management, especially when commissioning and key management are handled well at scale |
Maintenance burden | Wired connectivityPhysical infrastructure may be stable once installed, though changes, faults or cable damage can be prohibitively costly to locate and repair | Wireless connectivityLess cable infrastructure to maintain, with service planning focused on power strategy, device health visibility and network diagnostics |
Best fit examples | Wired connectivityFixed installations, deterministic requirements, accessible infrastructure, greenfield builds | Wireless connectivityRetrofit, distributed assets, phased rollouts, hard-to-cable locations, and environments where installation speed and adaptability matter |

Nick Dutton
Senior Director Technical Marketing & Strategic Partnerships, Wirepas











