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- Manufacturer: Bently Nevada 
-    Part Number: 3500/20 125744-02 
- Condition:New with Original Package 
- Product Type: Interface Module for Yokogawa Systems 
-   Country of Origin: USA 
- Payment:T/T, Western Union 
- Shipping port: Xiamen 
- Warranty: 12 months 
Product Description
The Bently Nevada 3500/20 Rack Interface Module (RIM) 125744-02 is a critical communication bridge for the Bently Nevada 3500 machinery protection system. Designed for reliability and flexibility, it connects the 3500 rack to external control and monitoring systems such as DCS, PLC, and SCADA.
Engineered for industrial automation environments, the 3500/20 module supports multiple communication protocols, including Ethernet (TCP/IP, Modbus TCP), RS-232, and RS-485, enabling seamless data exchange and remote monitoring. Moreover, its high-speed data handling ensures accurate and real-time transmission of machinery condition and vibration data, improving predictive maintenance and reducing downtime.
With its compact rack-mount design, this RIM module integrates easily into existing setups, ensuring stable connectivity and enhanced diagnostics for complex rotating machinery systems.
Functional Highlights
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Serves as the central interface between the 3500 rack and plant control systems. 
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Supports Ethernet, RS-232, and RS-485 protocols for versatile communication. 
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Provides real-time vibration and condition data to DCS or SCADA platforms. 
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Enables remote configuration and system diagnostics for improved accessibility. 
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Compact, durable design with wide operating temperature range for field reliability. 
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Fully compatible with Yokogawa vibration monitoring systems and legacy 3500 hardware. 
Technical Specifications
| Specification | Details | 
|---|---|
| Model Number | 3500/20 125744-02 | 
| Product Type | Rack Interface Module (RIM) | 
| Function | Communication bridge between 3500 rack and external systems | 
| Communication Protocols | Ethernet (TCP/IP, Modbus TCP), RS-232, RS-485 | 
| Data Rate | RS-232: up to 38.4 kbps | 
| Measurement Range | Frequency: 0–10 kHz | 
| Accuracy | ±0.5% | 
| Power Supply | 24 V DC | 
| Power Consumption | 4.75 W | 
| Operating Temperature | –40°C to +85°C | 
| Protection Rating | IP20 | 
| Dimensions (W × H × D) | 114.3 × 88.9 × 38.1 mm | 
| Weight | 0.23 kg | 
| Mounting Type | Rack-mounted | 
| Country of Origin | USA | 
| Condition | In stock (used/refurbished options available) | 
FAQ
Q1: What is the primary function of the 3500/20 module?
It acts as the main communication link between the 3500 monitoring rack and external control systems such as DCS or PLC.
Q2: Which protocols are supported by the RIM?
It supports Ethernet (TCP/IP, Modbus TCP), as well as RS-232 and RS-485 serial communication.
Q3: Can it operate in harsh industrial environments?
Yes. With a temperature range of –40°C to +85°C, it is suitable for extreme conditions.
Q4: Is the module compatible with Yokogawa systems?
Yes, it integrates seamlessly with Yokogawa vibration and control systems.
Q5: What warranty is included?
Each unit includes a 12-month warranty and after-sales support for configuration assistance.
