The ABB NKCL01-7, also cataloged as the NKCL01 Plant Communication Cable, operates as a dedicated hardware component for high-speed network signal transport and module interconnection within Bailey Infi 90 DCS platforms.

Model Assembly & Cable Length Code

• NKCL01: Core designation for pre-assembled multi-conductor plant communication interconnect cables.
• -7: Specific cable length suffix representing a factory-terminated assembly length of 7 feet (2.13 meters).

Hardware Specifications

Deterministic Network & Backplane Integration

The cable assembly provides physical media continuity to sustain full backplane bus communication velocity across nodes. Maintaining a matched characteristic impedance profile of 100-120 Ω mitigates signal reflection and high-frequency attenuation. The internal multi-conductor wiring design supports high I/O density scaling between module drop locations while maintaining full firmware flash compatibility for protocol translation devices.

Supply Items

• 1 x ABB NKCL01-7 Plant Communication Cable Assembly (7 ft)

Field Installation Guidelines

• Bending Radius Rules: Ensure the cable maintains a minimum bend radius of 50 mm along cabinet wireways to avoid physical stress on 22-24 AWG internal conductors.
• Routing & Isolation: Segregate the plant communication cable from high-voltage AC lines and motor lead channels to prevent electromagnetic induction.
• Connector Security: Insert male connectors fully into mating subrack ports and tighten integral retention screws to establish unbroken shield continuity.

Technical FAQ

• Can the NKCL01-7 cable be attached or disconnected while system bus power is active?

  Yes, passive plant communication cables can be connected or disconnected under power provided connected interface cards support hot insertion.

• What is the primary function of characteristic impedance matching in this assembly?

  Matching the 100-120 Ω impedance prevents signal degradation, line reflections, and data packet corruption across the 7-foot communication path.

• What current and voltage limits apply to individual conductors within the cable?

  Each 22-24 AWG conductor carries a maximum rating of 300 VAC and up to 2 A continuous current under standard operating conditions.

• How is shielding grounded through the cable assembly?

  Overall braided shielding terminates through metal connector hoods directly to the chassis ground rail upon physical mechanical mating.

• What effect does operating above +80 deg C have on cable performance?

  Temperatures above +80 deg C can compromise PVC conductor insulation, causing impedance shifts, signal attenuation, or short circuits.

• Is the NKCL01-7 approved for outdoor panel-to-panel field runs?

  No, the assembly is rated for internal cabinet and wireway routing; external outdoor deployment requires weather-resistant conduit.

• How do installation practices prevent strain on the end pin terminations?

  Apply strain-relief cable ties within 10 cm of the connector ends to absorb physical tension and prevent wire pull-out from the contacts.

• Can two NKCL01-7 cables be joined together using in-line adapters?

  In-line splicing or adapter extension is prohibited as it causes impedance mismatching and breaks noise immunity guarantees.