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Bently Nevada 16925-25 Interconnect Cable

The Bently Nevada 16925-25, also cataloged as the 16925 interconnect cable, operates as a dedicated hardware component for transmission of low-level vibration and position sensor signals within 3300 and 3500 series machinery protection loops. The Bently Nevada 16925-25 (16925 interconnect cable) provides direct physical and electrical execution of shielded signal routing between proximity probes, seismic velocity transducers, and TSI monitoring rack input termination points, maintaining defined impedance continuity and shield reference integrity along the full 25 ft assembly length.

Hardware Specifications

Parameter	Specification
Model / Brand	Bently Nevada 16925-25
Dimensions	25 ft (approx. 7.6 m) length
OperatingTemp	-40 degC to +85 degC
PowerConsumption	Passive component (no supply required)
Cable Type	Shielded multi-conductor / coaxial signal cable assembly
Conductor Gauge	Typically 22 AWG (application dependent)
Shielding	Full-length EMI/RFI shield with drain wire
Connector Type	Factory-terminated sensor and rack-side connectors
Signal Compatibility	Proximity, seismic velocity, Keyphasor, displacement signals

Eddy Current Signal Integrity and Cross-Talk Suppression Architecture

The cable assembly is designed to maintain stable electrical referencing for eddy-current proximity probe circuits used in rotor dynamics measurement chains. Shield continuity and controlled impedance geometry reduce induced noise coupling between adjacent signal runs, supporting gap voltage validation behavior in the -10 VDC to 0 VDC operating window typical of proximity transducer systems. Cross-talk suppression is achieved through continuous shield termination strategy and low-leakage dielectric separation between conductors, minimizing phase distortion in high-resolution vibration measurement loops.

Frequently Asked Questions

Q: Can the 16925-25 cable be used in hot-swap conditions within a running 3500 rack system?
A: The cable itself is passive; however, disconnection under energized proximity probe loops may introduce transient voltage spikes. Isolation of loop power is required before reconnection.

Q: Does the shielding require grounding at both ends?
A: Standard practice is single-point grounding at the monitor rack end to prevent ground loop current circulation. Dual-end grounding is application dependent.

Q: Is signal attenuation introduced over the full 25 ft length?
A: Within specified Bently Nevada transducer loop impedance limits, attenuation remains within system calibration tolerance and does not require compensation.

Field Installation Guidelines

Cable routing shall maintain physical separation from high-voltage conductors and switching devices to preserve EMI rejection performance. Minimum bend radius shall follow standard industrial shielded cable practice to avoid shield fracture and conductor micro-deformation. The drain wire shall be terminated at the designated ground reference point in the monitoring rack only. Avoid multiple shield contact points along the cable run to prevent circulating current loops. Mechanical fastening shall prevent vibration-induced fretting at connector interfaces, particularly in turbine skid environments.

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