Yokogawa AKB337-M020 Signal Cable

Hardware Specifications

DCS Signal Interface and Isolation Characteristics

The Yokogawa AKB337-M020 supports Yokogawa DCS field I/O signal routing through a shielded multi-core cable structure. In addition, the cable maintains signal integrity by reducing electromagnetic interference and external noise coupling during communication between FIO modules and terminal connection units.

For Yokogawa process control architectures, the cable assembly supports module-level signal transmission requirements associated with isolated I/O channels, including systems using 4-20 mA HART loop protocol, FOUNDATION Fieldbus, or Profibus PA communication interfaces. However, the cable itself does not perform protocol conversion or signal conditioning functions.

The shield layer provides additional noise suppression for industrial environments. Therefore, installation practices must maintain proper grounding and separation from high-current power cables to reduce signal disturbance.

Frequently Asked Questions

Q: Does the AKB337-M020 provide active signal conversion or amplification?
A: No. The AKB337-M020 is a passive signal cable assembly. It only provides electrical connection between compatible Yokogawa modules and terminal interfaces.

Q: Can the AKB337-M020 be installed without considering shielding requirements?
A: No. The cable uses shielding for noise reduction, so the shield termination and grounding method must follow the system installation requirements.

Q: What Yokogawa hardware interfaces are connected by this cable?
A: The AKB337-M020 connects compatible Yokogawa FIO modules and terminal boards using 50-pin KS interface connectors.

Field Installation Guidelines

• Verify the connector pin configuration before installation to prevent incorrect module-to-terminal connections.
• Install the cable with sufficient routing clearance from high-voltage and high-current conductors.
• Connect the cable shielding according to the Yokogawa system grounding specification.
• Avoid excessive bending, pulling force, or mechanical stress on the connector ends.
• Confirm that the connected FIO module and terminal board support the AKB337 interface configuration before system commissioning.