Bently Nevada 135031-01 RIM I/O Module with Modem Interface
The modem-interface I/O module used with a Bently Nevada 3500/20 Rack Interface Module.
Overview
135031-01 is the spare part number for the Bently Nevada 3500/20 Rack Interface Module I/O assembly with a built-in modem interface. It occupies the rear I/O position associated with the rack interface function.
135031-01 must not be confused with 125768-01, which is the alternate 3500/20 I/O module with an RS232/RS422 interface. Confirm the installed interface and host connection before exchange.
Specs
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Model | 135031-01 |
| System | 3500 Machinery Protection System |
| Associated Monitor | 3500/20 Rack Interface Module |
| Product Type | RIM I/O module with built-in modem interface |
| Installation Position | Rear I/O position associated with the rack interface module |
| Documented Alternative | 125768-01 RIM I/O module with RS232/RS422 interface |
| Compatible RIM Context | Standard 3500/20 or TMR 3500/20 architecture when configured with modem-interface I/O |
| RIM Ordering Code for this Interface | B = 01, I/O module with built-in modem |
| Agency Approval Code | Defined by the complete 3500/20 ordering string |
| Service Requirement | Exact rack, RIM type, firmware and host communication arrangement must be recorded |
| Static Handling | Grounded ESD handling required |
Features
- Provides the documented built-in modem interface for the 3500/20 rack-interface position.
- Keeps the communications termination separate from the front Rack Interface Module.
- Supports service replacement without changing the front module when the I/O assembly is the diagnosed item.
- Uses a distinct spare number to prevent substitution with the RS232/RS422 execution.
Applications
- 3500 racks whose host link uses the built-in modem version of the 3500/20 I/O module.
- Maintenance of machinery-protection racks in power generation, oil and gas, refining and process plants.
- Like-for-like replacement after cable, grounding and host communications have been checked.
Lifecycle
- Export the 3500 rack configuration and record RIM firmware before shutdown.
- Photograph the rear wiring, cable destination and all labels before removal.
- Confirm whether the installed front RIM is standard or TMR and preserve the complete approval configuration.
- After exchange, verify rack communications, event time, host data and System 1 or other connected software before returning the rack to service.
FAQ
Can 135031-01 replace the RS232/RS422 RIM I/O module?
No automatic substitution should be made. 135031-01 is the built-in modem version; the host interface, cable and rack configuration must match.
What evidence is needed to quote 135031-01 accurately?
Provide photographs of the front RIM and rear I/O labels, rack serial number, firmware, host connection, cable part number and approval markings.
Should the rack configuration be reloaded after replacing 135031-01?
Preserve a current backup and compare the rack configuration after service; any reload must follow the site change procedure and correct firmware baseline.
What should be tested before blaming 135031-01 for a communication loss?
Check rack power, front RIM health, cable continuity, grounding, host port settings, modem path and software communication diagnostics.
How should 135031-01 be commissioned in a running protection system?
Use an approved outage or bypass plan, apply ESD controls and verify communications without defeating active machinery-protection functions.
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