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Allen-Bradley 1786-TNCLXT4 75 Ohm TNC Terminator Plug for ControlNet Networks

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Allen-Bradley 1786-TNCLXT4

by Allen-Bradley

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OverviewThe Allen-Bradley 1786-TNCLXT4 is a vital 75 Ohm TNC terminator plug specifically engineered for seamless operation within ControlNet™ coaxial networks. This compact yet resilient accessory is pivotal for upholding signal quality by delivering precise termination at the extremities of coaxial segments, unused connection points, or tap junctions. Through its effective prevention of signal reflections and impedance mismatches, the 1786-TNCLXT4 secures dependable data transfer and consistent network function, which is paramount in demanding industrial automation settings. Its robust construction and straightforward integration capabilities establish it as a cornerstone for achieving dependable and error-free ControlNet media setups.Key Features Designed for ControlNet: Exclusively developed to meet the rigorous demands of ControlNet coaxial systems, ensuring perfect compatibility and operation. Precise 75 Ohm Termination: Guarantees accurate impedance matching to eliminate signal reflections and maintain high-fidelity data communication. Enhanced Network Stability: Works to prevent signal loss and data corruption, leading to a more reliable and efficient ControlNet system. Robust TNC Interface: Features a male TNC connector for a secure, vibration-resistant, and simple installation, even in challenging industrial environments. Compact and Durable Construction: Built to withstand harsh industrial conditions, providing long-term reliability and performance within a small form factor. Diverse Application: Ideal for terminating trunk and drop cables, end-of-line connections, and unused taps across various ControlNet configurations. Global Shipping: Available for fast and efficient international delivery, ensuring prompt deployment wherever your operations are located. Technical Specifications Brand: Allen-Bradley / Rockwell Automation Series: Bulletin 1786 Part Number: 1786-TNCLXT4 Type: TNC terminator plug Impedance: 75 Ohm Connection Type: TNC (male) Application: ControlNet coaxial network termination Environmental Rating: IP20 Condition: New Applications Terminating ControlNet trunk and drop cable segments to preserve signal integrity. Providing essential end-of-line resistance in coaxial media systems to avert signal bounce. Integration into OEM panels and machinery that require dependable ControlNet connectivity. Critical for field maintenance, upgrades, and retrofit projects on existing ControlNet infrastructures. Ensuring correct termination of unused taps on ControlNet coaxial networks. Deployment in new ControlNet installations to establish a stable and interference-free communication backbone. Why Choose This Model? Unmatched Reliability: As an Allen-Bradley product, the 1786-TNCLXT4 ensures the highest standards of quality and performance for your critical ControlNet applications. Optimize Network Performance: By effectively terminating your coaxial segments, this plug eliminates signal reflections, leading to clearer data transmission and fewer errors. Seamless Integration: Designed specifically for ControlNet, it offers perfect compatibility and effortless installation, saving valuable time and reducing potential setup complications. Industrial-Grade Durability: Engineered for resilience, its robust construction guarantees reliable operation even in the most demanding industrial environments. Prevent Costly Downtime: A properly terminated network reduces troubleshooting efforts and minimizes the risk of system failures, safeguarding your operational continuity. Expert-Backed Assurance: Invest in a component trusted by industry professionals worldwide for its critical role in robust industrial automation networks. Order NowEnhance the reliability and performance of your ControlNet coaxial network with the Allen-Bradley 1786-TNCLXT4 TNC terminator plug. This essential component is readily available and ships worldwide for your convenience. Don't compromise on signal integrity – ensure your industrial automation systems operate flawlessly with genuine Allen-Bradley parts.FAQWhat is the primary function of the Allen-Bradley 1786-TNCLXT4?The primary function of the 1786-TNCLXT4 is to provide precise 75 Ohm termination for ControlNet coaxial networks. This prevents signal reflections and impedance mismatches, ensuring stable and reliable data transmission.What type of connector does the 1786-TNCLXT4 use?The 1786-TNCLXT4 features a male TNC connector, designed for secure and easy installation within ControlNet systems.Can this terminator plug be used in harsh industrial environments?Yes, the 1786-TNCLXT4 is designed with robust construction and a compact form factor to withstand demanding industrial conditions, offering long-term reliability.

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PRODUCT DETAILS

Allen-Bradley 1786-TNCLXT4

Overview

This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Allen-Bradley catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Allen-Bradley automation ecosystem

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Allen-Bradley platform with documented conversion notes

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Brand: Allen-Bradley / Rockwell Automation
  • Series: Bulletin 1786
  • Part Number: 1786-TNCLXT4
  • Type: TNC terminator plug
  • Impedance: 75 Ohm
  • Connection Type: TNC (male)
  • Application: ControlNet coaxial network termination
  • Environmental Rating: IP20
  • Condition: New

Applications

  • Terminating ControlNet trunk and drop cable segments to preserve signal integrity.
  • Providing essential end-of-line resistance in coaxial media systems to avert signal bounce.
  • Integration into OEM panels and machinery that require dependable ControlNet connectivity.
  • Critical for field maintenance, upgrades, and retrofit projects on existing ControlNet infrastructures.
  • Ensuring correct termination of unused taps on ControlNet coaxial networks.
  • Deployment in new ControlNet installations to establish a stable and interference-free communication backbone.

Why Choose the 1786-TNCLXT4?

  • Unmatched Reliability: As an Allen-Bradley product, the 1786-TNCLXT4 ensures the highest standards of quality and performance for your critical ControlNet applications.
  • Optimize Network Performance: By effectively terminating your coaxial segments, this plug eliminates signal reflections, leading to clearer data transmission and fewer errors.
  • Seamless Integration: Designed specifically for ControlNet, it offers perfect compatibility and effortless installation, saving valuable time and reducing potential setup complications.
  • Industrial-Grade Durability: Engineered for resilience, its robust construction guarantees reliable operation even in the most demanding industrial environments.
  • Prevent Costly Downtime: A properly terminated network reduces troubleshooting efforts and minimizes the risk of system failures, safeguarding your operational continuity.
  • Expert-Backed Assurance: Invest in a component trusted by industry professionals worldwide for its critical role in robust industrial automation networks.

Availability & Shipping

  • In stock: 1786-TNCLXT4 ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every 1786-TNCLXT4 ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Allen-Bradley

The primary function of the 1786-TNCLXT4 is to provide precise 75 Ohm termination for ControlNet coaxial networks. This prevents signal reflections and impedance mismatches, ensuring stable and reliable data transmission.

Machine down? We ship parts the same day.

New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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