The ABB NKCL01-10, also cataloged as the NKCL01 Coaxial Cable, operates as a dedicated hardware component for high-speed plant signal transmission and node interconnectivity within Bailey Infi 90 RIO/Infi-Net communications. This 10 ft coaxial cable maintains steady 75 ohm line impedance across remote I/O links, preventing waveform reflection and high-frequency data corruption during continuous node-to-node telemetry exchanges.

Cable Assembly Variants & Dimensional Breakdown

• NKCL01: Base factory designator for Infi 90 network coaxial communication cables.
• -10: Physical length specifier designating a 10 foot (3.05 m) pre-terminated cable assembly.
• Inner Conductor: 20 AWG solid core conductor providing low-resistance RF signal propagation.

Technical & Environmental Specifications

Deterministic Network Telemetry & Flash Integrity

The NKCL01-10 cable assembly stabilizes backplane bus communication velocity and high-speed RIO network throughput by maintaining an 80% velocity of propagation. The 75 ohm matched impedance structure suppresses standing waves across Infi-Net communication loops, ensuring zero-loss packet transfer between distributed processing units. This physical layer stability prevents communication timeout resets, protecting firmware flash compatibility across active node interface cards during online system operations.

Standard Shipping Package & Contents

• 1 x ABB NKCL01-10 Coaxial Cable Assembly (10 ft length)
• Protective connector end caps and sealed polybag packaging

Cable Installation & Route Management Rules

• Static Bend Radius: Maintain a minimum bend radius of 65 mm along the entire cable run to avoid pinching the dielectric core and altering line impedance.
• Isolation Distance: Lay coaxial runs at least 300 mm away from 480 VAC power cables, motor leads, and variable frequency drive outputs to eliminate induced EMI noise.
• Connector Engagement: Hand-tighten coaxial BNC/F-type locking collars completely to ensure low-resistance shield contact and prevent signal intermissions.
• Physical Pulling Tension: Do not exceed a maximum pulling tension of 18 kg (40 lbs) during conduit pulls to preserve inner 20 AWG conductor integrity.

Engineering FAQ & Physical Limits

• What is the nominal characteristic impedance of the NKCL01-10 cable assembly?

  The cable maintains a 75 ohm nominal impedance to match standard Bailey Infi-Net line termination specs.

• Can the 10 ft cable length be cut and re-terminated in the field?

  Field cutting is not recommended; altering length disrupts factory velocity factor tuning and attenuation calibration.

• What voltage isolation rating does the outer jacket insulation provide?

  The dielectric and jacket construction is rated for continuous dielectric withstand up to 500 V AC.

• How does the 80% velocity of propagation affect data timing?

  It allows signals to travel at 80% of light speed, minimizing delay across RIO node communication loops.

• Does disconnecting this cable interrupt node bus communication?

  Yes, removing an active cable breaks the physical loop, causing communication timeouts on connected nodes.

• What wire gauge size is used for the center signal conductor?

  The central signal path utilizes a solid 20 AWG conductor for optimal high-frequency conductivity.

• How should spare cable slack be coiled inside marshalling cabinets?

  Loop extra cable in loose circles no smaller than 150 mm in diameter; avoid sharp right-angle bends.

• Can this coaxial cable be submerged or exposed to standing water?

  No, the cable is designed for dry industrial environments within 5-95% RH non-condensing limits.