Description

Yokogawa AKB331-M020 DCS 50-Pin Shielded I/O Signal Cable

Technical Specifications

• Product Model: AKB331-M020
• Brand: Yokogawa
• Warranty: One Year
• Input Voltage: Rated 250V AC maximum withstand voltage
• Operating Temperature: -20°C to +80°C
• Storage Temperature: -40°C to +85°C
• Response Time: Zero signal delay for parallel digital I/O transmission
• Protection Class: IP20 for indoor cabinet installation
• Accuracy Class: 100% pin-to-pin signal integrity without crosstalk
• Output Frequency: DC digital discrete signal transmission only
• Rated Current Range: Low-current instrumentation loop ≤0.5A per core
• Communication Interface: Dual 50-pin male molded locking connectors
• Supported Protocols: Parallel discrete digital I/O for CENTUM VP DCS system
• Overload Capacity: 500V DC dielectric withstand test, short-circuit resistant internal wiring
• Dimensions: 20m total cable length, outer diameter 6.8mm, total weight 1.5kg
• 

Product Overview

The AKB331-M020 is a factory-terminated 50-pin male-to-male shielded signal cable exclusively designed for Yokogawa CENTUM VP and ProSafe-RS DCS distributed control systems. The suffix M020 denotes a fixed 20-meter overall length, engineered to establish dedicated wiring between SDV series digital I/O modules (SDV144, SDV531, SDV53A, SDV541) and SAT145 terminal interface boards in process control cabinets. Its full aluminum polyester foil shielding with integrated drain wire suppresses electromagnetic interference induced by variable-frequency drives, high-power contactors and heavy industrial power circuits, eliminating false digital trigger signals and data loss over long wiring runs. Instrumentation engineers, DCS maintenance technicians and process system integrators benefit from pre-assembled locked connectors that eliminate on-site soldering errors, abrasion-resistant PVC outer jacket for repeated bending during cabinet layout, and strict pin mapping matching Yokogawa native module standards. This standardized assembly cuts field wiring labor hours, reduces commissioning faults, and stabilizes continuous 24/7 operation in petrochemical, power generation and heavy industrial process plants.