


Product Description
Product Details
- Manufacturer: Bently Nevada
- Series: 3500/20
- Model/Part Number: 3500/20-01-02-CN
- Model Type: Rack Interface Module (RIM)
Description
The Rack Interface Module (RIM) serves as the primary interface for the 3500 rack. It supports a proprietary protocol used to configure the rack and retrieve machinery data. The RIM must be installed in slot 1 of the rack, located next to the power supply modules.
Specifications
Inputs
-
Power Consumption: 4.75 watts (typical)
-
Front Panel Data:
- Standard RS232 serial communications
- Data Rate: 38.4 k baud
-
I/O Modules:
- RS232/RS422 serial communications
- Internal modem communications
- Data Rates:
- Serial Communications: Up to 38.4 k baud
- Internal Modem Communications: 14.4 k baud
Outputs
-
Front Panel LEDs:
- OK LED: Indicates when the RIM is functioning properly.
- TX/RX LED: Signals communication activity between the RIM and other modules in the 3500 rack.
- TM LED: Lights up when the 3500 rack is in Trip Multiply mode.
- CONFIG OK LED: Confirms the rack configuration is valid.
-
I/O Module OK Relay:
- Indicates whether the rack is functioning normally or has detected a fault.
- User-configurable as "OPEN" or "CLOSED" contact for a NOT OK condition.
- Relay is "Normally Energized."
- Relay Rating: 5A @ 24 Vdc / 120 Vac, 120 Watts / 600 VA Switched Power.
- Arc Suppressors: Included for normally closed contacts.
Environmental Limits
- Operating Temperature: -30°C to +65°C (-22°F to +150°F)
- Storage Temperature: -40°C to +85°C (-40°F to +185°F)
RS232/RS422 I/O Module Physical Dimensions
- Dimensions (H x W x D): 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)
- Weight: 0.45 kg (1.0 lb)
Ordering Information
The part number format is 3500/20-AA-BB-CC, with the following options:
-
A: Rack Interface Type
- 01: Standard RIM (for standard monitoring applications)
- 02: TMR RIM (for Triple Modular Redundant configurations)
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B: Type of I/O Module
- 01: I/O module with built-in modem
- 02: I/O module with RS232/RS422 interface
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C: Agency Approval Options
- 00: None
- 01: CSA/NRTL/C