Bently Nevada 146031-01 10/100BASE-TX Copper Ethernet I/O Daughter Sub-Board

Manufacturer Background: Bently Nevada (Baker Hughes GE) dedicated rear pluggable daughter I/O sub-board exclusively matching 3500/22M TDI transient data interface main module (288055-01); expands electrical copper Ethernet communication channel for rack machinery monitoring system, transmits steady-state vibration, axial displacement and pre/post-alarm transient waveform data to System 1 workstation, compliant with API 670, CE industrial standards.

Part Number Breakdown: 146031-01 - 146031 = Series code for rear expansion I/O daughter boards of 3500/22M TDI - -01 = Variant 1: 10/100BASE-TX copper RJ45 electrical Ethernet sub-board (electrical media version) - Contrast model: 146031-02 = 100BASE-FX MT-RJ fiber optic sub-board

Product Type: Small rear-mounted secondary daughter card, hot-plug compatible with 3500/22M main TDI module rear slot; provides independent industrial copper Ethernet communication port, expands network transmission channel for TDI data upload, works with front-panel RJ45 to realize dual redundant electrical Ethernet communication.

Matching System Components: Main TDI module 3500/22M (288055-01 / 288055-02); 3500 series 4/8/14-slot rack chassis; 3500/40M / 3500/42M / 3500/45M vibration & thrust monitor cards; System 1 predictive maintenance diagnostic software; industrial Ethernet switches, CAT5e shielded network cables.

Core Hardware Overview: 1. Interface Standard: IEEE 802.3 10BASE-T / 100BASE-TX auto-negotiation, Auto-MDIX adaptive cable straight/cross 2. Connector Type: Rear-side RJ45 copper Ethernet female port, integrated surge suppression circuit inside sub-board 3. Installation Method: Plug into dedicated rear expansion slot of 3500/22M main TDI module, no rack slot occupation, internal bus communication with main board 4. Communication Protocol Compatibility: BN Host proprietary TCP/IP protocol, TDI waveform data transmission protocol, compatible with System 1 upper monitoring software 5. Electrical Isolation: 2kV galvanic isolation between Ethernet port and TDI internal logic circuit, suppress ground loop interference 6. Power Supply: Powered by main TDI module rear internal bus, no independent external power required, additional power consumption ≤1.2W 7. Environmental Ratings: Operating temperature -30℃ ~ +65℃; storage -40℃ ~ +85℃; relative humidity 5%–95% non-condensing; IEC 60068 vibration & shock certified 8. Mechanical Spec: Compact small daughter board size 110mm × 32mm × 12mm, net weight ~0.2kg, metal shielding housing anti-electromagnetic interference 9. Redundancy Function: Cooperates with front-panel RJ45 port of TDI main module to build dual electrical Ethernet redundant communication path, automatic link switching during single-channel fault

1. Product Overview

146031-01 is a dedicated copper Ethernet expansion daughter sub-board for Bently Nevada 3500/22M TDI transient data interface main module, installed on the rear expansion slot of the TDI main card without occupying extra rack slots. It adds an independent rear 10/100M copper RJ45 Ethernet channel, forming dual redundant electrical Ethernet communication together with the front panel RJ45 port of the 3500/22M main module, greatly improving communication reliability of machinery monitoring system. The sub-board integrates built-in surge protection and 2kV isolation circuit, effectively eliminate electromagnetic interference and ground potential difference noise generated by high-voltage switchgear room equipment. Supports synchronous upload of all rack steady-state static data and alarm front/rear high-resolution transient waveform data via TCP/IP BN Host protocol to System 1 diagnostic workstation, used for rotor unbalance, misalignment, bearing failure spectrum analysis. Hot-swappable design allows replacement without powering off the TDI main module, no interruption to rack vibration protection logic operation during maintenance. Widely applied in thermal power steam turbine, petrochemical compressor and general cogeneration gas turbine monitoring racks requiring dual electrical network redundant communication.

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