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Yokogawa KS10-20*A Signal Cable

The Yokogawa KS10-20*A, also cataloged as the KS10 Signal Cable, operates as a dedicated hardware component for stable mixed-signal transmission between field controllers, terminal boards, and subsystem I/O modules within Yokogawa CENTUM VP and ProSafe-RS platforms.

Suffix Breakdown & Model Matrix

Suffix / Style Code Option Description
KS10 Base Model Shielded Multi-Core Signal Cable (50-50 Pins)
-20 Cable Length Cable length 20 m class
*A Style Code Style A (Dual-layer aluminum foil shield with drain wire, EMI attenuation up to 90 dB)

Hardware Specifications

Parameter Specification
Model KS10-20*A
Brand Yokogawa
Origin Japan
Weight 1.45 kg (Net) / 2.0 kg (Shipping)
Dimensions Outer diameter 8.5 mm, Cable length 20 m
Operating Temp -20 deg C to 80 deg C
Power Consumption Passive wiring component (N/A)
Conductor Structure 10 cores, tinned copper stranded (0.5 mm2 per conductor)
Voltage Rating 300 V
Insulation & Jacket Flame-retardant PVC jacket (IEC 60332-1 compliant)
Shielding Aluminum foil with drain wire
Connector Type Yokogawa 50-pin standard signal connectors (KCN1 socket compatible)
System Compatibility Yokogawa CENTUM VP, ProSafe-RS, ADM 2C, KS3 / KS10 systems

4-20 mA HART Loop Protocol and Channel Isolation

The KS10-20*A cable passes high-density mixed analog and digital signals across 20-meter cabinet-to-cabinet interconnections without degradation. Full-length dual-layer aluminum foil shielding suppresses electromagnetic interference, maintaining channel-to-channel isolation limits across sensitive instrumentation channels. This noise attenuation preserves 4-20 mA HART loop protocol digital frequency-shift keying (FSK) signals during transmission through electrically noisy industrial control environments.

Frequently Asked Questions

Q: Does the KS10-20*A cable require external terminal grounding during installation?

A: The aluminum foil shield connects to an internal tinned drain wire. Field engineers must terminate this drain wire directly to a clean instrumentation earth ground at the cabinet entry terminal to optimize EMI attenuation and clear ground loop paths.

Q: Can the 20-meter cable assembly be cut or modified in the field?

A: Field modification is not recommended because factory-molded 50-pin connectors provide fixed-pin mapping and controlled impedance. Cutting the cable voids factory shielding integrity and pin-to-pin continuity standards.

Field Installation Guidelines

Lay the KS10-20*A signal cable into designated low-voltage instrument raceways. Observe a minimum bend radius equal to at least eight times the 8.5 mm cable outer diameter to prevent structural strain on the internal stranded conductors and foil shield layers.

Maintain strict separation between the KS10-20*A cable run and high-voltage AC power lines or variable frequency drive cables. Secure both 50-pin connector ends into their respective module or KCN1 terminal board headers using the integrated retention screws to prevent signal loss under continuous machine vibration.

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