Configured for loop signal routing and module interconnectivity in Bailey Infi 90 platforms, the ABB NKLS02-10 (NKLS02 Loop Interface Cable) provides direct physical/electrical execution.

Cable Identification & Length Nomenclature

• NKLS02: Base designator representing multi-conductor factory-terminated loop interface cables.
• -10: Cable assembly length code specifying a physical length of 10 feet (3.05 meters).

Technical Parameters

Bus Communication & Impedance Properties

The assembly maintains continuous backplane bus communication velocity across loop interface connections by matching the 100-120 Ω characteristic impedance required by Infi 90 subracks. Preserving controlled impedance attenuates high-frequency signal noise and prevents standing wave reflections during rapid bus state transitions. The internal 22-24 AWG multi-conductor structure optimizes I/O density scaling inside control enclosures while maintaining full firmware flash compatibility for attached bus modules.

Component Package

• 1 x ABB NKLS02-10 Loop Interface Cable Assembly (10 ft)

Wiring & Physical Routing Rules

• Bending Clearance: Maintain a minimum bend radius equal to 5 times the cable outer diameter to prevent internal conductor strain.
• Conduit Isolation: Route loop interface cabling in separate low-voltage wireways away from high-voltage AC power distribution lines.
• Connector Engagement: Fully insert end connectors into module headers and secure strain-relief hardware to preserve shield continuity.

Technical FAQ

• Can the NKLS02-10 cable assembly be connected or disconnected while system power is active?

  Yes, passive loop interface cables can be hot-swapped under power provided connected subrack modules support live maintenance.

• What is the maximum current capacity per conductor in the NKLS02-10 assembly?

  Each 22-24 AWG conductor inside the assembly is rated to carry up to 2 A continuous current at standard operating temperatures.

• Why is characteristic impedance matching essential for the loop interface cable?

  Matching the 100-120 Ω characteristic impedance prevents signal reflections and maintains pulse integrity across high-speed data paths.

• How does shield grounding function through the cable termination?

  The overall cable shield ties directly to the metal connector housing, grounding through the subrack chassis earth upon connection.

• What temperature range must be maintained during active operation?

  Operating ambient temperatures surrounding the cable must remain strictly between -20 deg C and +80 deg C to ensure dielectric stability.

• Can the NKLS02-10 be spliced in the field to alter total run length?

  Field splicing is prohibited because altering physical conductor topology alters characteristic impedance and degrades signal transmission.

• What installation precaution prevents mechanical strain on internal conductors?

  Secure the cable with strain-relief ties within 15 cm of the module header to prevent pull-out stress on pin connections.

• Is the NKLS02-10 cable jacket designed for outdoor atmospheric exposure?

  No, the outer insulation layer is specified for internal cabinet and tray routing; exposed outdoor runs require protective conduit.