Bently Nevada 146031-01 I/O Module
Full name: Transient Data Interface I/O Module (TDI Communication I/O Rear Card)
Bentley 3500 system specific, 3500/22M transient data interface matched with rear I/O module

146031-01 Physical Object

Terminal side view
1、 Complete pairing (core procurement points)
✅ Front card: 3500/22M-01-01-00 (body PN: 288055-01)
✅ Supporting I/O board: 146031-01 (RJ45 electrical port version)
Corresponding model meaning: 3500/22M-01-01-00, second segment 01=matched with 146031-01 Ethernet port I/O
⚠️ Cannot mix fiber optic version I/O card 146031-02, the hardware of the two is not compatible
2、 Core functions
External communication interface carrier
Provide a 10/100Base TX RJ45 Ethernet port as a physical communication channel between the 3500 rack and the upper System 1 diagnostic software and configuration software.
Signal conversion
Realize 3500/22M front card motherboard ↔ Signal transfer for external network cables and system OK relay terminals;
Data transmission carrier
Responsible for the external transmission of steady-state trends, vibration waveforms, axis trajectories, and transient tripping waveform data;
Equipped with a system status relay output, it can be externally connected to sound and light alarms.
Important concept differentiation:
3500/22M (front card): TDI main control operation unit;
146031-01 (Rear I/O Card): External interface terminal board, cannot be used alone on the machine, must be set with the front card.
3、 Key hardware parameters
Network interface: 1 x RJ45 10/100M adaptive Ethernet
Protocol: BN Host/TDI proprietary protocol (compatible with System1)
Power supply: Powered by the 3500 rack backplane
Power consumption of the whole machine combination: 10.5W
Working temperature: -30 ℃~+65 ℃, no condensation
Installation: On the rear side of the 3500/05 rack, plug in the corresponding 3500/22M front card one by one
Support hot swapping
4、 Version differentiation
Table
Part number interface type compatible with 3500/22M models
146031-01 RJ45 Copper Ethernet (this clause) 3500/22M-01-01-00
146031-02 100Base FX MT-RJ optical fiber 3500/22M-01-02-00
5、 Lifecycle information
Continuous supply from the original factory; New original and disassembled testing spare parts are available in the market
Warranty reference: Brand new original 12 months, disassembled spare parts 3-6 months
6、 Typical applications
TSI protection frame for steam turbine, gas turbine, centrifugal compressor, used for vibration fault diagnosis, waveform acquisition and communication.