MU-NTAP02 51201394-100 Honeywell UCN 2-Drop Tap Kit

Honeywell MU-NTAP02 2-Port Drop Tap Kit

The Honeywell MU-NTAP02, also cataloged as the Honeywell 51201394-100 UCN 2-Drop Tap Kit, operates as a dedicated hardware component for passive network traffic monitoring within Honeywell TDC 3000, TPS, and Experion PKS platforms. The kit installs directly into the standard I/O chassis to intercept communication lines between controllers and hardware I/O modules. By utilizing passive electrical taps, the device extracts data patterns for processing without loading down active transmission cables or introducing frame latencies.

Hardware Specifications

Process Control and DCS Interface Architecture

The hardware incorporates dedicated galvanic isolation circuits to isolate connected engineering diagnostics workstations from the primary industrial control network backbone. This architecture prevents external electrical transients, ground potential differences, or instrument failures on the monitoring side from leaking back into the active controller bus. High-speed signal processing matrices maintain signal path fidelity for Honeywell proprietary control network protocols, while integrated hardware LED components display binary real-time states for link verification, line activity, and overall transceiver health.

Frequently Asked Questions

Q: Does the connection of diagnostic equipment to the monitoring tap port risk dropping live I/O communication?

A: No. The passive internal layout decouples the monitoring tap port via physical galvanic isolation blocks, allowing technicians to hot-plug or disconnect external analyzers without inducing signal attenuation or packet reflections on the main controller network.

Q: What components are delivered inside the factory packaging for this part number?

A: The kit contains two individual 2-port drop tap assemblies equipped with designated line terminators, along with the specified mechanical mounting brackets and assembly hardware needed for chassis integration.

Q: How does the module obtain its internal operating power for the diagnostic LEDs?

A: The module draws its required electrical current directly from the system backplane connector rails once seated in the I/O chassis, requiring no external power cabling or auxiliary power supplies.

Field Installation Guidelines

• Chassis Seating and Mechanical Fastening: Insert the drop tap module straight into the slot guides of the I/O chassis to prevent pin misalignment. Tighten all supplied mounting bracket screws into the frame to eliminate physical vibration risks.
• Bus Termination Protocols: Verify that the included network terminators are firmly attached to the end-of-line nodes. Incorrect termination changes loop impedance, which causes data errors across the proprietary control network.
• Shield Ground Continuity: Connect all network cable shields directly to the chassis ground terminal blocks using low-resistance copper braids. Maintain unbroken shield coverage across the input and output lines to block electromagnetic field interference.
• Bend Radius Limits: Route the coaxial or twinaxial network drop cables away from sharp metallic edges. Keep all cable bends above the manufacturer specified minimum radius to avoid internal conductor deformation and signal distortion.