Configured for coaxial network signal transmission in Bailey Infi 90 systems, the ABB NKCL01-25 (NKCL01 Communication Cable) provides a 75 ohm physical communication path for Infinet/RIO connections.

Model Configuration

The NKCL01-25 is identified as an ABB Bailey Infi 90 coaxial Infinet/RIO communication cable. The supplied model information does not define an internal suffix coding scheme beyond the complete NKCL01-25 catalog designation, so no additional suffix interpretation is assigned.

Cable Specifications

Infinet/RIO Signal Characteristics

The NKCL01-25 uses a 75 ohm coaxial transmission path intended for the Infinet/RIO communication environment. The specified 82% velocity of propagation and 20-25 pF/ft capacitance define the cable's electrical transmission characteristics. Maintaining the specified impedance through the complete cable path helps prevent impedance discontinuities that can affect signal integrity.

The 18 AWG conductor provides the specified conductor size, while the 500 V AC rating defines the stated insulation voltage capability. The cable itself is passive and does not require a separate power connection.

Ordering Information

• 1 x ABB NKCL01-25 coaxial Infinet/RIO communication cable
• 1 x 75 ohm coaxial cable assembly
• No separate power supply or electronic communication module is specified
• No additional termination kit is identified in the supplied product data

Installation and Cable Routing

• Verify that the connected Infi 90 interface is intended for the specified 75 ohm coaxial cable.
• Keep the coaxial path continuous and avoid unnecessary impedance discontinuities.
• Avoid crushing, excessive bending, or mechanical tension during installation.
• Route the cable away from strong electromagnetic interference sources where practical.
• Maintain connector and cable termination integrity throughout installation.
• Do not substitute cable with a different characteristic impedance without checking the associated communication circuit requirements.
• Inspect the cable for insulation or connector damage before connecting it to the communication network.

Frequently Asked Questions

• What is the NKCL01-25 used for?

  It is a coaxial communication cable specified for Infinet/RIO communication connections within ABB Bailey Infi 90 systems.

• What is the cable impedance?

  The specified characteristic impedance is 75 ohm. The connected communication path should maintain the intended impedance characteristics.

• What conductor size does the cable use?

  The supplied specification identifies an 18 AWG conductor. This is a cable construction parameter and does not define the communication data rate.

• What is the velocity of propagation?

  The specified velocity of propagation is 82%. This value describes signal propagation relative to the propagation velocity in free space.

• What capacitance is specified?

  The cable capacitance is specified as 20-25 pF/ft. Cable capacitance contributes to the electrical characteristics of the complete transmission path.

• Does the cable require external power?

  No independent power consumption is specified. The NKCL01-25 is a passive communication cable rather than an electronic powered module.

• What temperature range is specified?

  The operating temperature range is -20 to +80 deg C. Storage temperature is specified from -40 to +85 deg C.

• Can another coaxial cable be substituted?

  Substitution should only be made after confirming impedance, capacitance, conductor construction, insulation rating, and compatibility with the associated Infi 90 communication circuit.