The YOKOGAWA KS2-50*B, also cataloged as the KS2-50 Signal Cable, operates as a dedicated hardware component for the transmission of multi-channel analog and digital signals between field devices and control system I/O modules.

Hardware Specifications

4-20 mA HART Loop Protocol and Signal Integrity

The KS2-50*B cable is engineered to maintain high signal fidelity for 4-20 mA HART loop protocol loops and discrete digital I/O signals. Within Yokogawa DCS architectures, the integration of 20-pair shielded cabling is required to prevent crosstalk and electromagnetic interference (EMI) between adjacent channels. The use of high-density 40-pin connectors facilitates rapid deployment while ensuring individual pair shielding, which is necessary to maintain the signal-to-noise ratio required for precise process data transmission.

Frequently Asked Questions

Q: Can the KS2-50*B cable be shortened or modified in the field?

A: Field modification of the 40-pin connectors is not recommended. The factory-molded connectors ensure proper impedance and contact integrity. Modifying the cable assembly may compromise the shielding continuity and lead to signal attenuation or ground loop issues.

Q: Is this cable suitable for use in high-vibration environments?

A: The cable is designed for standard industrial control cabinet routing. If installed in areas subject to mechanical vibration, ensure the cable is properly secured with cable ties to prevent fatigue at the 40-pin connector interfaces.

Field Installation Guidelines

1. Cable Routing: Route the KS2-50*B away from high-voltage power lines and VFD output cables. Maintain a minimum separation distance of 300 mm to prevent induced electrical noise on the shielded pairs.
2. Connector Insertion: Align the 40-pin connector with the module interface port. Ensure the locking mechanisms are fully engaged to prevent intermittent signal drops caused by contact vibration.
3. Grounding: Verify that the cable shield is tied to the cabinet ground bus at the designated entry point. Proper shield termination is necessary to drain induced currents and maintain the integrity of the analog input signals.
4. Bend Radius: Adhere to the minimum bend radius requirements for multi-pair shielded cabling. Avoid sharp bends near the connector strain relief to prevent wire breakage within the molded boot.