Bently Nevada 3500/05 RIM I/O Module 125768-01 with 4-20mA Outputs and 124mm × 64mm Dimensions
The 125768-01 is the factory-standard Rack Interface Module I/O (RIM I/O) rear panel designed for use with the 3500/05 RIM in every 3500 protection rack system. This hot-swappable board consolidates all external communication interfaces and analog output terminations into a single, shielded assembly.
- RS-232 / RS-485 serial communication for local laptop or DCS connectivity
- Modem enable functionality for dial-out alarm call services
- System 1® Ethernet interface with 10/100 Base-TX for Bently Nevada software suite
- Four isolated 4-20 mA current sources proportional to monitor values (speed, vibration, thrust)
- Keyphasor buffered output for driving third-party instruments
By integrating all I/O on one surge-protected assembly, the 125768-01 eliminates extra terminal blocks, reduces wiring errors, and maintains API 670 / SIL 2 integrity standards.
| Parameter | Value |
|---|---|
| Part Number | 125768-01 |
| Manufacturer | Bently Nevada |
| Product Type | 3500/05 RIM I/O Rear Panel |
| Communications | RS-232 (DB-9), RS-485 (2-wire), 10/100 Base-TX (RJ-45) |
| Analog Outputs | 4 × isolated 4-20 mA, 12-bit resolution |
| Keyphasor Buffer | BNC, ±5 V TTL, 50 Ω |
| Power Consumption | Supplied by 3500/05 RIM ( |
| Isolation | 2 kV channel-to-ground, 500 V channel-to-channel |
| Operating Temperature | -40 °C to +85 °C |
| Storage Temperature | -55 °C to +105 °C |
| Relative Humidity | 5% to 95%, non-condensing |
| Dimensions | 124 mm × 64 mm × 45 mm (rear protrusion) |
| Weight | 0.18 kg (0.40 lb) |
| MTBF | > 300 years @ 40 °C (MIL-HDBK-217F) |
- Steam & gas turbines - export vibration to DCS via 4-20 mA
- Centrifugal compressors - dial-out modem alarms to remote SCADA
- Pumps & fans - local RS-485 Modbus link to PLC
- High-speed balancing machines - buffered Keyphasor to portable analyzer
- Offshore platforms - single-cable Ethernet to System 1® onshore
Compatible with all 3500/05 RIM firmware versions 3.3 and above. Works seamlessly with standard, TMR and SIL 2 rack configurations. No configuration changes required - true plug-and-play operation.
- 125768-01 RIM I/O rear panel
- M4 × 10 mm captive screws (pre-fitted)
- Calibration & conformity certificate
- Anti-static protective pouch
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