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- 3500/20 125744-01
- Triple Modular Redundant (TMR) Rack Interface Module
- USA
- 25 mm × 250 mm × 240 mm
- 0.84kg
- Xiamen, China
- New & In Stock
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Product Overview: 3500/20 125744‑01
Triple‑Modular‑Redundant Rack Interface Module (RIM)
Specifications
| Parameter | Details |
|---|---|
| Model | 3500/20 125744‑01 |
| Module Type | Triple‑Modular‑Redundant Rack Interface Module (TMR‑RIM) |
| Function | Primary communication interface for rack configuration, data exchange, and redundancy voting |
| Power Consumption | Approx. 4.75 W (typical) |
| Communications | Serial RS-232 (38.4 k baud), internal modem comms (14.4 k baud) |
| Operating Temperature | –40 °C to +85 °C |
| Storage Temperature | –40 °C to +85 °C |
| Dimensions (H × W × D) | ~25 mm × 250 mm × 240 mm (approx. 2.5 cm × 25 cm × 24 cm) |
| Weight | ~0.84 kg |
| Redundancy | Triple Modular Redundancy (TMR)—fault‑tolerant architecture |
| Compatibility | Works with 3500 system, communicates with TDXnet/TDIX/DDIX processors |
| Installation Position | Slot‑1 in the rack, adjacent to power supply modules |
Product Description
The 3500/20 125744‑01 is the crucial rack communication module for the 3500 monitoring system. It employs a triple‑modular‑redundant design, enabling data voting across three parallel paths to enhance the reliability of mission‑critical systems. As a Rack Interface Module (RIM), it manages rack setup and real-time health data exchange with external processors. The module supports both serial and modem communications, consumes around 5 W, and integrates into harsh environments with temperature resilience from –40°C to +85°C.
Applications
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Rack configuration and communication in critical rotating machinery protection systems
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High‑reliability installations needing redundant monitoring logic
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Connectivity with external processing systems (e.g., TDXnet, TDIX, DDIX)
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Industrial environments like power generation, petrochemical, oil & gas, and centrifugal machinery control systems
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Settings requiring continuous, fault‑tolerant monitoring without data loss
Advantages
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Triple‑modular redundancy ensures utmost reliability and continuity
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Compatibility with multiple communication standards simplifies integration
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Compact form fits a single dedicated rack slot
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Robust environmental range, ideal for extremes
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Low power draw keeps the system’s thermal footprint manageable
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High uptime, with provision for diagnostic LEDs and fault voting logic
Series & Brand Context
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Series: 3500 Modular Machinery Protection System
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Role: Primary Rack Interface Module with TMR
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Brand Context: Developed by a global leader in condition-based monitoring systems (brand name omitted per guidelines)
Related Models (Same Series or Function)
| Model | Function / Highlight |
|---|---|
| 3500/20 125744‑02 | Standard Rack Interface Module (non‑TMR version) |
| 3500/20 125744‑02W | Rack Interface Module with wired RS-422 variant |
| 3500/20 125744‑04 | Advanced Rack Interface with broader I/O capabilities |
| 3500/20 TDI (125744‑02) | Transient Data Interface Module for high‑speed data capture |
| 3500/22 TDI | Transient Data Interface in alternate form factor |
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|---|---|
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| 3500/30M | Dual‑Channel Vibration Monitor |
| 3300/12B | Bump / Transient Vibration Detector |
FAQ
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Q: What is the purpose of the 125744‑01 module?
A: It serves as a triple‑modular‑redundant interface between the rack and external systems, providing reliable rack configuration and communication.
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Q: What does “TMR” mean?
A: Triple‑Modular Redundancy—three parallel modules vote to ensure correct results and enhance reliability.
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Q: What communication speeds are supported?
A: Up to 38.4 k baud for RS-232, 14.4 k baud for internal modem comms.
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Q: Where is it installed in the rack?
A: In slot 1 of the 3500 rack, just beside the power modules.
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Q: Is it hot-swappable?
A: It supports redundancy, enabling hot-swap replacement with minimal disruption.
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Q: What temperature range does it tolerate?
A: Safe operation from –40 °C to +85 °C.
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Q: How much power does it use?
A: Approximately 4.75 W in normal operation.
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Q: How much does it weigh?
A: Around 0.84 kg.
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Q: What does it connect to externally?
A: Communication processors like TDXnet, TDIX, DDIX, and supervisory systems.
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Q: Why choose the TMR version?
A: For maximum fault tolerance in high‑criticality applications where module failure must not halt monitoring.
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