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Category
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Details
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Inputs
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Power Consumption
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4.75 watts, typical
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Data (Front Panel)
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Standard
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RS232 serial communications
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Data Rate
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38.4 k baud
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I/O Modules
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Standards
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RS232/RS422 serial communications, Internal modem communications
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Data Rate
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38.4 k baud (serial communications), 14.4 k baud (internal modem communications)
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Outputs
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Front Panel LEDs
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OK LED
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Indicates when the RIM is operating properly
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TX/RX LED
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Indicates when the RIM is communicating with other modules in the 3500 rack
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TM LED
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Indicates when the 3500 rack is in Trip Multiply
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CONFIG OK LED
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Indicates that the 3500 rack has a valid configuration
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The Rack Interface Module (RIM) serves as the primary interface to the 3500 rack, facilitating essential communications and configurations within the monitoring system.
Compatibility
The RIM is compatible with various external communications processors from Bently Nevada, including TDXnet, TDIX, and DDIX.
It is designed to provide functions common to the entire rack but does not play a role in the critical monitoring path.
Operational Impact
The RIM does not affect the normal operation of the overall monitoring system, ensuring that monitoring continues uninterrupted regardless of the RIM's status.
Only one RIM is required per rack to ensure efficient functionality.
Triple Modular Redundant (TMR) Applications
For Triple Modular Redundant (TMR) configurations, the 3500 system requires a TMR version of the RIM.
The TMR RIM not only encompasses all standard RIM functions but also introduces the "monitor channel comparison" feature.
This configuration implements monitor voting based on the specified setup in the monitor options.
Error Detection
The TMR RIM continually compares the outputs from three redundant monitors.
If it detects that the output from one monitor is not within a configured percentage of the other two monitors, it flags that monitor as erroneous and logs an event in the System Event List.
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