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- Bently Nevada
- 3500/20 125744-02+125768-01
- RIM I/O Module System Rack Interface Module
- USA
- 250 × 112 × 242 mm
- 1.36kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
Product Name
Bently Nevada 3500/20 125744‑02 + 125768‑01
Series
3500 Series – Machinery Protection and Condition Monitoring System
Product Introduction
This combination features two pivotal modules within the 3500 Series:
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125744‑02 – A Rack Interface Module (RIM) serving as the primary interface between the 3500 rack and external systems such as host configuration tools or data processors. It does not participate in the critical monitoring path, ensuring separation of communication from protection logic.
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125768‑01 – A Rack Interface I/O Module (RIM I/O) embedded with RS‑232/RS‑422 communications capability, facilitating external device interactions (e.g. PLCs, DCS, or transient data modules).
Together, they enable robust system configuration, monitoring, and external linkage without compromising on the rack’s protection integrity.
Applications
This module pair is essential in industrial settings where machinery protection and external integration are required:
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Rotating equipment such as turbines, compressors, pumps, and generators
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Industries including power generation, oil & gas, petrochemical, marine, mining, and heavy manufacturing
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Installation within instrument racks for condition monitoring systems employing remote configuration, data retrieval, or trending capabilities
Product Advantages
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Secure communication interface that isolates rack protection logic from external networks
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Modular hot‑swappable design supports maintenance without downtime
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Redundant‑ready architecture, allowing TMR (triple modular) configurations if needed
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Extended temperature tolerance for demanding industrial environments
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Clear LED status feedback for power, communications, and configuration states
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Efficient power usage, minimizing electrical burden on rack power supplies
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Versatile baud‑rate support, making integration with legacy systems straightforward
Technical Specifications
| Parameter | 125744‑02 (RIM) | 125768‑01 (RIM I/O) |
|---|---|---|
| Function | Rack interface, configuration, data exchange | External communication via RS‑232 / RS‑422 |
| Communication Protocol | Proprietary, up to 38.4 k baud | RS‑232 or RS‑422 (switchable), proprietary |
| Power Consumption | ~4.75 W typical | ~5 W max |
| Power Supply | 24 V DC | 24 V DC |
| Hot‑Swappable | Yes | Yes |
| Form Factor | Full‑height front slot | Full‑height rear slot |
| Dimensions (approx.) | ~241 × 24 × 99 mm (9.5″ × 0.96″ × 3.9″) | ~250 × 112 × 242 mm (2.5 × 11.2 × 24.2 cm) |
| Weight (kg) | ~0.91 kg | ~0.45 kg |
| Operating Temperature | –40 °C to +85 °C | –40 °C to +85 °C |
| Cable Length Support | Up to ~2 m or more depending on interface | Same as RIM, supports long cable runs |
| Indicators / Controls | LEDs – Power, RX/TX, Config OK, TM; keylock switch | No front LEDs specified (rear slot module) |
| Redundancy Support | TMR configuration possible with channel comparison | N/A |
Related Models (Same Series)
| Model | Function | Form Factor | Weight (kg) |
|---|---|---|---|
| 3500/20 125744‑01 | TMR (Triple‑Modular) Rack Interface Module | Full‑height | ~0.9 kg |
| 3500/20 135031‑01 | RIM I/O Module with Modem Interface | Full‑height rear | ~0.8 kg |
| 3500/20 125760‑01 | Data Manager I/O Module | Full‑height rear | ~0.7 kg |
| 3500/20 125744‑04 | Rack Interface Module with Modbus/CANopen | Compact front | ~0.3 kg |
| 3500/20 125744‑02W | Standard Rack Interface Module (variant) | Full‑height front | ~2 kg (shipping) |
Popular Models (Same Brand)
| Model | Function | Form Factor | Weight (kg) |
|---|---|---|---|
| 3500/40M | Proximitor / Vibration Monitor | Full‑height | ~0.75 kg |
| 3500/22M | Transient Data Interface Module | Full‑height rear | ~0.8 kg |
| 3500/60 | Temperature Monitoring Module | Full‑height | ~0.8 kg |
| 3500/45 | Speed / Keyphasor Monitoring Module | Full‑height | ~0.9 kg |
| 3500/65 | 16‑Channel Temperature Monitor | Full‑height | ~0.85 kg |
FAQ (De‑AI’d Q&A)
Q1: What is the role of the 125744‑02 module?
A1: It acts as the rack interface, handling configuration commands and data exchange with external tools without affecting the protection path.
Q2: What does the 125768‑01 module do?
A2: It provides RS‑232 or RS‑422 I/O to connect external devices for configuration and data logging.
Q3: Are these modules hot‑swappable?
A3: Yes—they can be replaced while the system is active, without shutting down the entire rack.
Q4: How much power do they consume?
A4: The rack interface consumes about 4.75 W; the I/O module consumes up to 5 W.
Q5: What temperature range do they operate within?
A5: Both modules operate reliably from –40 °C to +85 °C.
Q6: Do they support redundancy?
A6: Yes—the 125744‑02 supports a TMR configuration to compare module outputs across three redundant systems.
Q7: What physical space do they occupy?
A7: They occupy full‑height front and rear slots of a standard monitoring rack.
Q8: What LED indicators are available?
A8: The rack interface has LEDs for power, RX/TX, config validity, and trip multiplier status, plus a key‑lock switch.
Q9: Can they be used with long cables?
A9: Yes, RS‑422 communications support long cable distances (hundreds of meters), suitable for remote control rooms.
Q10: Why separate interface from monitoring path?
A10: To ensure that communication errors or maintenance do not interfere with machine protection functions, keeping them distinct for safety.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.