Configured for high-integrity signal transmission in distributed control systems, the YOKOGAWA KS2-20 (KS2-20 Signal Cable) provides direct physical execution of data routing between field instrumentation and control modules. The cable assembly utilizes a high-density 20-pin D-subminiature connector interface to facilitate stable, low-latency signal transport across Yokogawa CENTUM series and PLC architectures.

Hardware Specifications

Electromagnetic Interference (EMI) Shielding and Conductivity

The KS2-20 cable is engineered with a braided tinned copper shield to mitigate electromagnetic interference, which is critical for maintaining signal accuracy in industrial control environments. The use of tinned copper conductors enhances solderability and provides superior corrosion resistance, ensuring long-term electrical conductivity. The PVC jacket and insulation provide the necessary mechanical protection against environmental stress, maintaining the integrity of the data transmission path even when routed through high-vibration or variable-temperature plant zones.

Frequently Asked Questions

Q: Can this cable be used for high-current power transmission?

A: No. The KS2-20 is designed specifically for signal-level transmission. Utilizing this cable for power distribution or high-current loads will result in overheating and failure of the internal conductors and connectors.

Q: How should I determine the correct length for my application?

A: The total length must account for the cable route from the field terminal to the control cabinet input. Measure the path along existing cable trays, adding a 10% slack margin to prevent tension on the D-subminiature connectors during thermal expansion or mechanical vibration.

Field Installation Guidelines

1. Inspect the 20-pin D-subminiature connectors for bent pins prior to mating.
2. Route the cable through dedicated signal conduits or cable trays, ensuring complete physical separation from high-voltage AC lines to prevent induced noise.
3. Secure the cable using strain relief hardware to ensure the weight of the cable does not cause the D-subminiature connector to sag or disconnect over time.
4. Verify the shield continuity to a clean signal ground at the control cabinet entry point to ensure the braided shield effectively drains electromagnetic noise.
5. Confirm that the locking screws on the connector are fully tightened to maintain electrical contact and resist disconnection from vibration.