Emerson Ovation 5A26147G12 Remote I/O AUI Interconnect Cable Assembly
5A26147G12 is an original factory-terminated dedicated AUI communication cable assembly built for Emerson Ovation DCS remote I/O systems. The suffix G12 refers to a confirmed locked hardware revision, which has passed factory continuity check, dielectric withstand test, shielding efficiency test and pinout matching verification. It serves as a dedicated high-speed physical signal link connecting Ovation remote I/O modules and local rack control units, responsible for reliable transmission of AUI bus communication signals and field I/O data signals. Equipped with dual-end precision locking connectors and full EMI/RFI shielding construction, it effectively mitigates electromagnetic coupling interference inside cabinets and ensures long-term stable high-speed data exchange between remote I/O stations and main control racks. It is widely adopted for new cabinet assembly, remote I/O station expansion, unit retrofit and spare parts inventory in thermal power, petrochemical and other critical process industries.
Description
1. Product Description
This prefabricated cable assembly uses industrial multi-layer shielded communication cable with factory preset fixed length, fitted with precisely crimped matched locking connectors on both ends. One connector inserts into the AUI communication port of Ovation remote I/O modules, and the other connects to main control rack backplanes or controller communication interfaces, implementing dedicated point-to-point hard wiring between field remote I/O stations and the central control layer. Every finished cable undergoes strict outgoing quality inspection to eliminate open circuits, short circuits, miswiring and poor crimping defects, fully adapting to 24/7 continuous operation and long-term vibration environments of industrial control cabinets.
2. Core Functional Features
2.1 High-speed Point-to-point AUI Bus Signal Transmission
Custom-designed for the Ovation AUI remote I/O bus architecture. Strict one-to-one pin assignment guarantees low-latency, high-speed transmission of I/O sampling data, control commands and status feedback signals between remote stations and master controllers, free of signal crosstalk and packet loss.
2.2 Dual-layer Full Shielding Anti-interference Structure
Adopts overall braided copper mesh shielding plus individual core wire independent dual shielding design, effectively isolating EMI and RFI interference induced by cabinet contactors, variable frequency drives, cooling fans and high-power on-site equipment. Signal integrity is significantly improved to avoid communication jitter, frame errors or link dropouts.
2.3 Gold-plated Anti-loose Precision Locking Connectors
Both ends are fitted with industrial gold-plated connectors with integrated snap-lock mechanisms. Gold-plated pins lower contact resistance and resist oxidation and corrosion in humid cabinet environments; the locking structure prevents poor contact caused by long-term equipment vibration and delivers consistent long-term connection reliability.
2.4 Flame-retardant, Oil-resistant and Anti-aging Outer Jacket
The outer sheath is made of high-tensile flexible flame-retardant PVC material, resistant to oil mist, dust and temperature fluctuations inside power plant cabinets. It features outstanding bending fatigue resistance, suitable for fixed routing and limited bending layout, with no insulation cracking or conductor breakage after repeated plugging and prolonged vibration.
2.5 Native Plug-and-play System Compatibility
No adapters, field wiring modifications or secondary crimping are required. It directly mates with standard AUI ports of the full range of Ovation remote I/O modules, rack backplanes and DPU controllers, perfectly matching the Ovation distributed control platform and simplifying on-site installation, troubleshooting and spare part replacement.
2.6 Standard Tagged Fixed-length Finished Cable
Supplied as pre-assembled fixed-length cable with unified ID tags and pin labels, facilitating cable sorting, identification and subsequent circuit maintenance inside cabinets, greatly shortening on-site engineering wiring and commissioning cycles.
3. Key Technical Specifications
Model Number: 5A26147G12
Product Type: Remote I/O AUI Interconnect Cable Assembly
Connectors: Matched locking precision connectors at both ends
Supported Bus: Ovation AUI remote I/O communication bus
Transmitted Signals: Remote I/O sampling data, control commands, bus communication signals
Shielding Structure: Dual-layer overall braided shielding + independent core wire shielding
Anti-interference Performance: Full EMI/RFI suppression, excellent signal integrity
Insulation Resistance: ≥100 MΩ (tested at 500 VDC)
Dielectric Withstand Voltage: 1000 VAC between conductors and shielding layer
Operating Ambient Temperature: 0 ℃ ~ +60 ℃
Storage & Transportation Temperature: −40 ℃ ~ +85 ℃
Relative Humidity: ≤95% RH, non-condensing
EMC Compliance: Meets industrial G3 anti-corrosion standard and anti-interference requirements for power plant control cabinets
Rated Mating Cycles: ≥1000 reliable plug/unplug operations
Application Scope
- Thermal Power IndustryUsed for communication interconnection between remote I/O stations and main control cabinets of boilers, turbines and generator sets, realizing stable upload of field analog and digital signals and reliable issuance of control interlock commands.
- Petrochemical IndustryInstalled in remote control cabinets for reactors, fractionators and compressor units to connect field remote I/O modules and the central control system, ensuring uninterrupted data interaction for safety interlocks and continuous process control loops.
- Metallurgy, Waste-to-energy Power Plants & District Heating StationsUsed for fixed communication wiring of distributed remote I/O stations in automatic control systems, supporting long-cycle unattended safe and stable operation of the complete Ovation DCS production control system.
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