



Introduction
The YNT511D-P42 is a bus repeater module from Yokogawa, intended to extend and stabilize communication in distributed control system (DCS) networks. It serves as a signal repeater or converter — capable of regenerating bus data and bridging between electrical and optical link segments. In large or widely spread plants, where remote I/O racks or field modules are located far from central controllers, YNT511D-P42 enables reliable, long-distance, noise-resistant communication.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | YNT511D-P42 |
| Module Type | Bus / Optical Bus Repeater Module |
| Supported Network Systems | Yokogawa V-net / RIO / CENTUM / DCS bus architectures |
| Core Function | Electrical ↔ Optical conversion; signal regeneration; bus extension |
| Bus Types Supported | Standard Yokogawa control-system bus types (electrical or optical) |
| Maximum Link Distance | Up to 4 km per optical-link segment (with appropriate fiber and repeater configuration) |
| Data Rate | Suitable for typical DCS communication loads (system-dependent) |
| Supported Nodes (per segment) | Up to 32 devices in a given bus span (depending on system configuration) |
| Mounting Style | Rack-mount, standard industrial control rack format |
| Physical Dimensions | ≈ 328 × 130 × 258 mm (H × W × D) |
| Approximate Weight | ≈ 5.3 kg |
| Power Supply & Environment | Industrial AC mains, suitable for control-room or plant ambient conditions; designed for industrial EMI/noise resilience |
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