The 9905-969 (Model: 9905-969) is a specialized distributed I/O module within Woodward’s LinkNet architecture. It is primarily engineered for industrial control systems like MicroNet and Atlas, where high-density, remote signal acquisition is required. Unlike digital speed controllers, the 9905-969 (Part Number: 9905-969) functions as a high-precision interface for six independent analog input channels, facilitating the monitoring of critical process variables such as pressure, temperature, and position via standard current loops.
This module is a "Smart" I/O solution that features integrated 24 V DC loop power. This internal power source allows the 9905-969 (Model: 9905-969) to energize two-wire field transmitters directly, significantly reducing the complexity of cabinet wiring and the need for external power distribution blocks. Communicating via a high-speed serial LinkNet bus, it provides the main control CPU with deterministic data updates and comprehensive loop diagnostics, ensuring that turbine and engine control logic operates on reliable, real-time information.
The 9905-969 (Model: 9905-969) provides optimized signal conditioning for demanding industrial environments.
| Feature | Details |
| Manufacturer | Woodward |
| Model Number | 9905-969 |
| Series | LinkNet Distributed I/O |
| Product Type | Analog Input Module |
| Input Channels | 6 Independent Channels |
| Signal Range | 4–20 mA DC |
| Loop Power | 24 V DC (Integrated for field sensors) |
| Power Consumption | 3.1 W (Maximum) |
| Communication Bus | Proprietary LinkNet Serial Interface |
| Operating Temperature | –40°C to +70°C |
| Isolation | Channel-to-Bus Galvanic Isolation |
| Dimensions | 12.7 cm $\times$ 2.5 cm $\times$ 20.3 cm |
| Weight | 0.59 kg (1.21 lbs) |
| Origin | USA |
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