Bently Nevada 125744-01 3500/20 TMR Rack Interface Module
The Bently Nevada 125744-01 is a precision tmr rack interface module for the Bently Nevada 3500 Series machinery protection platform. Compatibility: Works with Bently Nevada processors like TDXnet, TDIX, and DDIX. | Functionality: Not part of critical monitoring path but provides essential rack functions. | Requirement: One RIM per rack.. Factory-sealed, fully tested on a live 3500 rack with 48-hour burn-in at 55°C. 12-month warranty. Ships within 24 hours from Shenzhen.
Technical Specifications
| Primary Interface | Essential for configuring the 3500 rack and retrieving machinery data. |
|---|---|
| Location | Occupies slot 1 next to power supplies. |
| Compatibility | Works with Bently Nevada processors like TDXnet, TDIX, and DDIX. |
| Functionality | Not part of critical monitoring path but provides essential rack functions. |
| Requirement | One RIM per rack. |
| TMR Support | TMR version available for Triple Modular Redundant setups. |
| Additional Feature | Performs monitor channel comparison in TMR configurations, flagging discrepancies in output. |
| Manufacturer | Bently Nevada |
| Part Number | 125744-01 |
| Product Name | TMR Rack Interface Module |
| System Compatibility | Potentially compatible with Bently Nevada 3500/20 system |
| Operating Temperature | -30°C to +65°C (-22°F to +150°F). |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F). |
| Model / SKU | 125744-01 |
✓ Ships within 24 hours | ✓ 12-Month Warranty | ✓ Worldwide Delivery
Detailed Product Information
🎯 System Integration
The Bently Nevada 125744-01 connects the 3500 rack to plant condition monitoring and historian infrastructure, streaming real-time vibration and temperature data to System 1, OSIsoft PI, or DCS via Modbus TCP.
Network Options
- Copper (146031-01): 10/100Base-TX, max 100m.
- Fiber (146031-02): 100Base-FX, max 2km — ideal for long runs or high-EMI areas.
Configuration
Static IP mandatory — DHCP expiry causes data gaps. Configure NTP for accurate timestamps. Allow TCP 3500 + TCP 502 through OT firewall.
🔧 Technical Specifications
Specifications
| Parameter | Value |
|---|---|
| Primary Interface | Essential for configuring the 3500 rack and retrieving machinery data. |
| Location | Occupies slot 1 next to power supplies. |
| Compatibility | Works with Bently Nevada processors like TDXnet, TDIX, and DDIX. |
| Functionality | Not part of critical monitoring path but provides essential rack functions. |
| Requirement | One RIM per rack. |
| TMR Support | TMR version available for Triple Modular Redundant setups. |
| Additional Feature | Performs monitor channel comparison in TMR configurations, flagging discrepancies in output. |
| Manufacturer | Bently Nevada |
Installation
- Install in assigned rack slot per configuration drawing.
- Copper: CAT5e UTP 100m max. Fiber: 62.5/125μm multimode SC 2km max.
- Assign static IP. Configure NTP. Document settings.
- Verify STATUS LED green and data flowing before returning to service.
📦 Shipping & Warranty
24-hour handling. Anti-static packaging. DHL/FedEx/UPS. 12-month warranty covering port failure, firmware issues, communication dropout.
❓ FAQ
Q: Copper or fiber?
A: Fiber for runs over 100m, high-EMI environments, or electrical isolation requirements. Copper for standard control room under 100m.
Q: Does replacement require reconfiguration?
A: Yes — IP settings are stored on the module. Document your settings before removing the old module.
💰 ROI
The TDI module enables predictive maintenance. One avoided bearing failure on a 50 MW turbine saves $250K-500K. Without it, your 3500 rack is just a trip system.
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