1. General Information

• Manufacturer: Bently Nevada (Baker Hughes)

• Part Number: 125760-01

• Product Name: Rack Interface Module (RIM)

• Series: 3500 Machinery Protection System

• Module Type: Half‑height communication interface module

• Application: Serve as primary rack communication interface; exchange configuration, steady-state and transient data between rack modules and external host system.

• Installation Rule: Must be installed in Slot 1 of 3500 rack

• Compliance: API 670

2. Communication Interface

• Serial Port: RS232 / RS485 configurable

• Ethernet: 10/100BASE‑TX (for system configuration & data upload)

• Supported Processor: TDXnet, TDIX, DDIX communication processor

• Protocol: Bently Nevada proprietary protocol, Modbus compatible

3. Electrical Specifications

• Backplane Power: +5 VDC from rack backplane

• Power Consumption: 4.5 W typical

• Isolation Voltage: 1500 VAC isolation between communication port and system

• Data Sampling Rate: Max 24 kHz transient data acquisition

4. Environmental Specifications

• Operating Temperature: -30 °C ~ +65 °C (-22 °F ~ +149 °F)

• Storage Temperature: -40 °C ~ +85 °C (-40 °F ~ +185 °F)

• Relative Humidity: 5% ~ 95% (Non-condensing)

• Anti-vibration: Compliant with API 670 industrial vibration standard

5. Mechanical Specifications

• Structure: Half‑height single slot module

• Dimensions (H × W × D): 241 × 12.2 × 112 mm

• Weight: Approximately 0.41 kg

• Mounting: 3500 standard rack slot installation, hot-swap capable

6. Compatible Devices

7. Key Features

• Central data management for the entire 3500 rack

• Supports remote configuration, firmware upgrade and diagnostic

• High anti-interference communication for industrial harsh environment

• Half-height compact design to save rack slot resources

• Mandatory Slot 1 installation for system bus synchronization

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