3500/40M 126615-01 is the external-termination Proximitor I/O Module for the Bently Nevada 3500/40M four-channel monitor. It routes transducer signals through the supported external termination arrangement.

The external blocks and cables are selected separately. This form is useful where field wiring must terminate away from the rack while preserving the 3500/40M monitoring channel structure.

• Connects the 3500/40M monitor to a supported external termination system.
• Keeps field terminal blocks away from the rack when the panel design requires remote termination.
• Provides the standard non-barrier 10 kΩ input interface.
• Supports four proximity-transducer channels through the associated monitor.
• Uses separately ordered external termination blocks and interconnect cables.

• Designed for the Bently Nevada 3500 machinery-protection rack and the 3500/40M four-channel monitor arrangement.
• Works with compatible Bently Nevada proximity transducers selected for radial vibration, position, differential expansion, eccentricity or REBAM measurement.
• Channel pairs 1–2 and 3–4 are configured by the rack configuration software; each pair uses one supported measurement function.
• Standard and barrier rear I/O modules have different operating ranges and must be matched to the installed application.
• External-termination I/O requires the separately selected termination blocks and cables; it is not interchangeable with internal termination hardware without an installation review.

• Preserve the full 3500/40M 126615-01 identity because it defines the external-termination I/O form.
• Verify the exact external termination block and cable before exchange.
• Document cable routing, connector orientation and all four channel assignments.
• Do not substitute an internal-termination I/O module without redesigning the field termination.
• Perform channel validation and machinery-protection testing after replacement.