Overview
Configured for UCN signal transmission in Honeywell DCS infrastructure, the Honeywell MU-NKD020 (51195153-020) (MU-NKD020 UCN Coaxial Drop Cable Assembly) provides a 20 m physical communication path between network hardware and UCN nodes.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MU-NKD020 |
| Part Number | 51195153-020 |
| Brand | Honeywell |
| Product Type | UCN Coaxial Drop Cable Assembly |
| Cable Type | RG6 Coaxial Cable |
| Cable Length | 20 m |
| Impedance | 75 Ohms |
| Operating Voltage Rating | Up to 1000 V |
| Current Capacity | 10 A |
| Operating Temp | -40 deg C to +85 deg C |
| Dimensions | 20 m cable length; other dimensions not specified |
| Power Consumption | Passive cable assembly; no specified power consumption |
| Application | Honeywell TDC 3000 and Experion PKS UCN infrastructure |
| Connection | Pre-terminated coaxial connectors |
Honeywell DCS and UCN Signal Characteristics
The MU-NKD020 uses a 75 Ohm coaxial transmission path for UCN network communication. Therefore, installers should maintain the specified cable impedance throughout the connected signal path.
The cable assembly uses shielding to reduce electromagnetic interference and signal attenuation. Consequently, cable routing should maintain separation from high-current power conductors and strong electromagnetic noise sources.
The assembly is passive and does not perform signal processing, protocol conversion, or power regeneration. Instead, it provides the physical transmission medium between compatible UCN network connection points.
For TDC 3000 or Experion PKS installations, verify the connector type, network topology, and cable termination before connection. Also, inspect the shield and connector condition before commissioning.
Frequently Asked Questions
Q: What network function does the MU-NKD020 provide?
A: The MU-NKD020 provides a 20 m, 75 Ohm coaxial physical transmission path for compatible Honeywell UCN network connections.
Q: Does the MU-NKD020 require an external power supply?
A: No. The supplied data identifies the unit as a passive coaxial cable assembly with no specified power consumption.
Q: What installation practice should be followed for the coaxial shield?
A: Maintain the intended shield continuity and use the system-defined grounding arrangement. Avoid routing the cable alongside high-current or high-noise power conductors.
Field Installation Guidelines
- Confirm the cable model and part number before installation: MU-NKD020, 51195153-020.
- Verify that both connection points support the specified 75 Ohm coaxial UCN interface.
- Inspect connectors for contamination, mechanical damage, or deformation before mating.
- Maintain coaxial shield continuity throughout the installed signal path.
- Route the cable away from high-current power cables, contactors, variable-frequency drives, and other significant EMI sources.
- Avoid excessive bending, crushing, or tensile loading during installation.
- Secure the cable without damaging the outer jacket or connector termination.
- After installation, verify connector engagement and perform the applicable UCN communication checks
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