1492-ACABLE025WB | Allen-Bradley 2.5m ControlLogix Analog I/O Interface Cable

Product Description

The 1492-ACABLE025WB is a high-performance, pre-terminated cable assembly engineered for the Allen-Bradley 1756 ControlLogix platform. This cable is specifically designed to facilitate the transition from high-density analog I/O modules to remote interface modules (IFMs). By utilizing a factory-assembled connection, the 1492-ACABLE025WB (Part Number: 1492-ACABLE025WB) significantly reduces installation time and virtually eliminates the risk of wiring errors associated with manual point-to-point terminations.

This cable is optimized for sensitive low-level signals, making it an ideal choice for connecting thermocouple, RTD, and standard analog input modules. Its construction prioritizes signal integrity, ensuring that critical process data is transmitted with minimal interference from electromagnetic noise commonly found in industrial environments. At a fixed length of 2.5 meters, it provides ample flexibility for routing through wire ducts within standard control cabinets.

Technical Specifications

• Brand: Allen-Bradley (Rockwell Automation)

• Model Number: 1492-ACABLE025WB

• Cable Type: Analog Pre-Wired Interface Cable

• Compatible Platform: Bulletin 1756 ControlLogix

• Supported Signal Types: Analog Voltage/Current, RTD, and Thermocouple

• Total Length: 2.5 Meters (Approx. 8.2 Feet)

• Wire Construction: Shielded multi-conductor for analog precision

• Connector Type: 20-pin RTB interface to D-shell header

• Shipping Weight: 1.35 lbs (0.61 kg)

• Application Use: Process Control and Industrial Automation

Application Scenarios

This cable is typically deployed in process industries—such as oil and gas, water treatment, or chemical processing—where 1756-IF16, 1756-IR6I, or 1756-IT6I modules are utilized. The 1492-ACABLE025WB ensures that the millivolt signals from thermocouples or the resistance changes from RTDs are accurately reflected at the PLC without the signal degradation often caused by poor field terminations.

Technical FAQ

What makes the "WB" suffix different from other 1492 analog cables?The "WB" designation indicates a specific wiring pinout and connector orientation tailored to certain 1756 analog module types. It is essential to match this suffix to your specific I/O module and Interface Module (IFM) to ensure correct signal mapping.

Is shielding included in this cable assembly?Yes. Unlike standard digital cables, the 1492-ACABLE025WB features specialized shielding designed to protect low-voltage analog signals from crosstalk and external EMI, which is critical for maintaining high-resolution measurement data.