The Rack Interface Module (RIM) serves as the primary interface to the Bently Nevada™ 3500 rack. It supports a proprietary protocol used to configure the rack and retrieve machinery information. The RIM must be installed in slot 1 of the rack, adjacent to the power supplies. It also supports compatible Bently Nevada external communications processors including TDXnet, TDIX, and DDIX. While the RIM provides essential functions for the entire rack, it operates outside the critical monitoring path and does not affect the normal operation of the overall monitoring system. One RIM is required per rack.
Triple Modular Redundant (TMR) Applications
For Triple Modular Redundant (TMR) applications, the 3500 System requires a TMR version of the RIM. In addition to all standard RIM functions, the TMR RIM also performs monitor channel comparison. The 3500 TMR configuration implements monitor voting using the setup specified in the monitor options.
Using this method, the TMR RIM continually compares the outputs from three redundant monitors. If the TMR RIM detects that the information from one of those monitors is no longer within a configured percentage of the information from the other two monitors, it will flag that monitor as in error and place an event in the System Event List.
Module Features and Interfaces
- LEDs: Indicate the operating status of the module
- Hardware Switches: Manual configuration controls
- Configuration Port: Configure or retrieve machinery data from only this rack using the RS-232 protocol
- Rack Interface I/O Module: Daisy chain or configure racks using RS-232 and RS-422 protocols
- Data Manager I/O Module: Connect two Bently Nevada Communication Processors to the 3500 rack
Of course, the Rack Interface Module is just the communication gateway. To build a fully functional protection system, you need the right mix of power, monitoring, and relay cards. Here is the rest of the 3500 series lineup we stock to complete your chassis:
| Category | Module | Description |
| RACK & POWER | 3500/05 | System Instrumentation Frame |
| 3500/15 | Power Supply Module |
| RACK & POWER | 3500/22M | Frame Interface Module (TDI) |
| VIBRATION | 3500/40M | Proximitor Monitor |
| 3500/42M | Prox/Disp/Vel/Accel Monitor |
| VIBRATION | 3500/25 | Keyphasor Module |
| RELAYS | 3500/32 | 4-Channel Relay |
| 3500/33 | 16-Channel Relay |
| 3500/34 | TMR Relay |
| SPECIALTY | 3500/50 | Speed Module |
| 3500/53 | Overspeed Detection |
| 3500/60-61 | Temperature Monitors |
| 3500/63 | Gas Monitor |
| DISPLAY | 3500/92 | Communication Gateway |
| DISPLAY | 3500/93 | LCD Display |
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