Allen-Bradley 1492-ACABLE025UD 1492 Pre-Wired Analog Cable Assembly

Product Overview

The Allen-Bradley 1492-ACABLE025UD establishes a secure, shielded interface path between Bulletin 1756 ControlLogix analog, RTD, or thermocouple input modules and external 1492 interface blocks. This premium pre-wired analog cable preserves micro-volt signals, eliminates manual wire stripping, and prevents the installation errors that cause measurement drift in complex process control systems.

Technical Specifications

Engineering Advantages

• Suppresses Electromagnetic Interference (EMI): The cable features dedicated shielding layer architecture that repels high-frequency noise from nearby variable frequency drives (VFDs) and high-voltage power lines. This engineering configuration protects delicate thermocouple and RTD millivolt inputs from signal corruption.

• Simplifies Temperature Loop Installation: The factory-terminated connectors plug directly into 1756 I/O chassis modules. This design bypasses traditional, tedious point-to-point manual screwdriver wiring, saving critical field-commissioning hours.

• Eliminates Measurement Cross-Wiring: Standardized pin assignments guarantee precise tracking between field transmitter terminals and corresponding PLC input addresses, ensuring absolute measurement fidelity from day one.

• Optimizes Space in Dense Wire Ducts: A rugged, flexible outer sheath encapsulates the internal conductor bundles. This slim cross-section allows tight bends inside overcrowded control cabinets without crimping conductors or degrading signal pathways.

FAQs

• Is this cable assembly suitable for 1756 discrete digital I/O modules?

  No. Rockwell Automation builds the 1492-ACABLE025UD specifically with internal shielding and conductor arrangements optimized for low-voltage analog, RTD, and thermocouple input signals. Digital signals require unshielded or differently bundled digital cable counterparts.

• Do you ship this item in authentic, factory-sealed condition?

  Yes. We supply the 1492-ACABLE025UD as a 100% brand new, original manufacturer product in its pristine, original packaging.

• Does this 2.5-meter cable require additional external shielding considerations during installation?

  The cable provides integral shield protection throughout its 2.5-meter length. Technicians must connect the cable’s pre-designated shield drain wire directly to a clean instrument ground point according to standard ControlLogix installation instructions to prevent ground loop noise.