Overview
In a high-end hotel project in Dubai, several elevators were equipped with wireless bridge transmission between the machine room and elevator cabin to deliver network connectivity to multimedia screens. For nearly two years, the system functioned without issue. However, recently the hotel began experiencing intermittent signal loss, causing display content to freeze or desynchronize — especially during lift movement or at certain floors. This negatively impacted digital signage performance and the guest experience.
Troubleshooting Attempts
● Verified bridge alignment and signal strength — remained unstable during elevator movement.
● Replaced antennas and recalibrated devices — issues persisted.
● Updated firmware and checked system logs — no hardware faults detected.
● Suspected increased electromagnetic interference (EMI) or structural signal blockage — likely cause.
Solution
The system integrator consulted Ourten and tested the OT-PLC302POE/OT-PLC302-DC — a PoE extender designed to deliver Power + data over existing 2-wire elevator traveling cables, with strong EMI resistance. The team reused a pair of 1.5 mm² copper cores inside the hoist cable to connect the elevator cabin to the network switch in the machine room.
View the connection video here: https://www.youtube.com/watch?v=E9CRofClEfY
Result
Once the Ourten OT-PLC302POE/OT-PLC302-DC was deployed, the instability was resolved immediately. The multimedia display in the elevator cabin now receives real-time, uninterrupted IP content, regardless of movement or EMI. No additional cabling, no signal tuning, no external devices required.
Key Takeaways
● Replaces aging wireless bridges with a robust wired Ethernet solution.
● Supports PoE + 100Mbps transmission over 2-wire cables up to 500m.
● High EMI immunity, ideal for lift shafts and moving equipment.
● Compact, plug-and-play design, perfectly suited for elevator environments.
Why This Matters
For hotels and commercial buildings that rely on wireless bridges in lifts, performance degradation over time is common due to EMI and environmental changes. Ourten OT-PLC302POE/OT-PLC302-DC offers a maintenance-free, cost-effective, and reliable alternative — already proven in demanding hospitality environments.
