The ABB NKLS01-3, also cataloged as the NKLS01-3 Communications Cable, operates as a dedicated hardware component for high-speed Infi-Net bus connectivity within Bailey Infi 90 systems.

System Cable Configuration

The NKLS01-3 represents a factory-terminated 3-foot assembly optimized for point-to-point interconnectivity across Bailey Infi 90 process control nodes. The base designation NKLS01 specifies the dual-shielded twisted-pair cable design for industrial communication interfaces, while the suffix -3 defines the physical assembly length of 3 feet (0.91 meters).

Technical Specifications

Deterministic Backplane and Bus Architecture

Designed to support high-reliability distributed control system architectures, the cable construction preserves signal integrity across deterministic backplane bus structures and network communication links. The controlled 100-120 Ohm characteristic impedance prevents signal reflection during high-speed data transmission between modules, ensuring firmware communication alignment and minimal latency across active nodes.

Package Scope

• 1 x ABB NKLS01-3 Communications Cable Assembly (3 ft)

Field Installation Rules

• Maintain a minimum bend radius of 10 times the outer cable diameter during tray routing to avoid conductor strain.
• Ensure the overall cable shield makes 360-degree contact with the cabinet grounding rail at entry points.
• Route communication cabling in separate conduits or wireways from high-voltage AC power lines to prevent electromagnetic interference.
• Verify connector pin alignment before latching to avoid bending internal pin contacts.

Technical FAQ

• What is the primary function of the NKLS01-3 cable assembly?

  It serves as a factory-terminated communication cable designed to interconnect modules and network interfaces within the ABB Bailey Infi 90 DCS system.

• What is the maximum voltage rating for this cable assembly?

  The cable carries an insulation rating of 300 V AC across its working temperature range.

• How does the characteristic impedance impact network communication?

  The nominal 100-120 Ohm characteristic impedance minimizes signal attenuation and wave reflection, maintaining high data throughput across Infi-Net nodes.

• Can the NKLS01-3 cable be installed in high-humidity process environments?

  Yes, the assembly is rated for operation in non-condensing relative humidity levels ranging from 5% to 95%.

• What thermal conditions can the cable withstand during storage?

  The cable assembly supports storage temperatures ranging from -40 to +85 deg C without insulation degradation.

• What is the gauge size of the internal conductors?

  The assembly utilizes internal copper conductors sized between 22 AWG and 24 AWG for optimal signal transmission.

• Does the cable require external power to operate?

  No, the cable is a passive physical-layer assembly and draws zero backplane or external loop current.

• What ground practices should be followed during installation?

  The cable shield must be tied to the system reference ground at specified enclosure termination points to maintain noise immunity.