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- Allen Bradley
- 1786-TNCL10
- ControlNet Media TNC Connector Plug
- USA
- 50 × 20 × 40 mm
- 0.1 kg
- Xiamen, China
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Product Overview
The Allen-Bradley 1786-TNCL10 is a TNC coaxial connector plug used in Allen-Bradley ControlNet IP67 media installations. It provides a threaded cable-end connection for coaxial cables used in industrial ControlNet communication networks.
Unlike TNC jack-to-jack or plug-to-plug connectors, the 1786-TNCL10 is a single male connector intended for cable termination. It is commonly used when preparing RG-6 coaxial cable assemblies that need to connect to sealed ControlNet taps, bulkhead connectors, or other compatible TNC interfaces.
A typical application involves routing ControlNet coaxial cable between electrical cabinets or distributed automation equipment. The cable is prepared and fitted with a 1786-TNCL10 at the required connection point, allowing it to mate with a compatible female TNC interface.
The connector is also included in the Allen-Bradley ControlNet IP67 Tap and Cable Assembly Kit. In this arrangement, TNC plugs are fitted to the cable ends to establish the threaded connections required by the sealed media system.
One practical consideration is the difference between TNC and BNC interfaces. Although both are coaxial connector types, they use different mechanical coupling arrangements and cannot be directly interchanged. The 1786-TNCL10 is intended for TNC connections and should be selected according to the connector requirements of the installed ControlNet media system.
The connector is a passive electrical component. It does not process communication data or amplify network signals. Its job is to maintain the center-conductor and shielding connections between the coaxial cable and the mating TNC interface.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Brand | Rockwell Automation |
| Model | 1786-TNCL10 |
| Product Series | ControlNet |
| Product Type | ControlNet Media TNC Connector Plug |
| Component Type | Coaxial Cable Connector |
| Connector Type | TNC |
| Connection Configuration | Plug |
| Media Compatibility | ControlNet Coaxial |
| Cable Compatibility | RG-6 Coaxial Cable System |
| Environmental Protection | IP67 when fully mated |
| Operating Temperature | -20 to +70°C |
| Package Quantity | 10 pieces |
| Application | ControlNet Coaxial Cable Termination |
| Dimensions | 50 × 20 × 40 mm |
| Weight | 0.1 kg |
Product Features
- TNC Plug Configuration: Provides a male threaded connection for compatible female TNC interfaces.
- ControlNet Media Compatibility: Intended for coaxial connections in Allen-Bradley ControlNet installations.
- IP67 Connection System: Supports sealed media connections when properly mated with compatible components.
- RG-6 Cable Application: Used in the ControlNet coaxial cable system.
- Threaded Coupling: Provides mechanical retention and helps prevent accidental loosening of the cable connection.
- Coaxial Signal Continuity: Maintains the center-conductor and shielding paths required for signal transmission.
- Industrial Installation: Suitable for sealed ControlNet media arrangements in industrial environments.
- Passive Construction: Requires no external power or network configuration.
- Cable Assembly Component: Allows compatible coaxial cable sections to be prepared for TNC-based connections.
- Multi-Piece Packaging: Supplied in a package containing 10 connectors.
Product Working Principle
The 1786-TNCL10 establishes an electrical connection between a coaxial cable and a compatible TNC female interface.
In a ControlNet coaxial network, communication signals travel through the center conductor of the cable. The surrounding dielectric and outer conductive shielding maintain the required coaxial transmission structure.
The 1786-TNCL10 is fitted to the prepared end of a compatible coaxial cable. Its center contact connects to the cable’s central conductor, while the outer connector structure maintains the shielding connection.
Once installed, the threaded plug mates with a corresponding TNC jack to form a mechanically secured coaxial connection.
A typical connection arrangement is:
ControlNet RG-6 Coaxial Cable → 1786-TNCL10 → Female TNC Interface → ControlNet Media Component
In an IP67 media installation, the threaded connection also forms part of the environmental sealing arrangement. The connector must be fully mated with a compatible sealed interface to achieve the specified protection level.
The 1786-TNCL10 does not provide network termination by itself. It is a cable connector rather than a 75-ohm terminating resistor. Where a ControlNet segment requires termination at its physical end, the appropriate terminating component must be installed separately.
Role in Allen-Bradley ControlNet Network Architecture
The 1786-TNCL10 functions as a cable-end connection component within the ControlNet IP67 TNC media architecture. It allows compatible coaxial cable assemblies to connect to sealed taps, bulkhead interfaces, and other TNC media components.
Its role is especially relevant when ControlNet cables need to pass through equipment enclosures or connect to IP67-rated media assemblies.
A typical arrangement is:
ControlNet RG-6 Cable → 1786-TNCL10 → 1786-TNCJI4 / 1786-TNCJ4 → ControlNet Media Connection
| System Component | Function |
|---|---|
| Allen-Bradley 1786-TNCL10 | Provides a male TNC connector for coaxial cable termination |
| 1786-RG6 | Provides the standard ControlNet RG-6 coaxial trunk cable |
| 1786-TNCJ4 | Provides a TNC jack-to-jack bullet connection |
| 1786-TNCJI4 | Provides an isolated TNC jack-to-jack bulkhead connection |
| 1786-TNCLP4 | Provides a TNC plug-to-plug barrel connection |
| 1786-TNCLXT4 | Provides a 75-ohm TNC terminating resistor |
| 1786-BNC2TNC | Provides an isolated BNC-to-TNC bulkhead connection |
| 1786-TCT2BD1 | Provides an IP67 TNC tap with a straight BNC drop connection |
| 1786-TPST2T | Provides a straight TNC-to-TNC ControlNet tap |
| 1786-TPRT2T | Provides a right-angle TNC-to-TNC ControlNet tap |
| 1786-RPFS | Provides short-distance fiber communication between ControlNet network sections |
The 1786-TNCL10 is used at the cable termination stage, while the other connectors provide the corresponding coupling, bulkhead, tap, or termination functions.
Industrial Applications
The 1786-TNCL10 is used in ControlNet installations where coaxial cable assemblies require threaded TNC connections.
| Industrial Application | Typical Use |
|---|---|
| Automotive Manufacturing | Preparing coaxial cable connections for ControlNet production-line networks |
| Food and Beverage Processing | Terminating cables used with sealed media connections in processing areas |
| Chemical Processing | Establishing TNC connections in industrial control enclosures |
| Power Generation | Preparing coaxial cable assemblies for ControlNet equipment connections |
| Oil and Gas Automation | Connecting coaxial media through sealed TNC interfaces |
| Water Treatment | Terminating ControlNet cables in automation and monitoring installations |
| Packaging Machinery | Preparing cable connections between machine control cabinets and network taps |
| Steel Manufacturing | Maintaining coaxial network connections in electrically demanding environments |
| Material Handling | Connecting ControlNet media cables across distributed conveyor systems |
| General Manufacturing | Supporting cable assembly, replacement, and maintenance in existing ControlNet networks |
Installation and Maintenance
- Verify Cable Compatibility: Confirm that the coaxial cable is suitable for the ControlNet TNC media system and the intended connector assembly.
- Inspect the Connector: Check the 1786-TNCL10 for damaged threads, bent center contacts, corrosion, or contamination.
- Prepare the Cable End: Strip the coaxial cable according to the applicable connector installation procedure, preserving the center conductor, dielectric, and shielding arrangement.
- Check Cable Dimensions: Ensure that the prepared cable matches the connector’s specified cable-entry requirements before assembly.
- Install the Connector: Fit the TNC plug to the prepared cable end using the appropriate installation tools and termination method.
- Inspect the Center Contact: Confirm that the center conductor is correctly positioned and that there is no unintended contact between the center conductor and the outer shielding.
- Check Shield Continuity: Verify that the connector body maintains the required electrical connection to the cable shield.
- Inspect Mechanical Assembly: Check that the connector is securely attached to the cable and that the cable jacket is properly supported.
- Connect to the TNC Interface: Align the plug with the compatible female TNC interface and engage the threaded coupling without cross-threading.
- Verify Environmental Sealing: Ensure that the connector is fully mated with the compatible sealed interface before relying on the IP67 protection rating.
- Test Network Communication: After completing the cable connection, check the ControlNet network status and confirm that communication is operating normally.
- Perform Routine Inspection: During maintenance, inspect the connector threads, center contact, cable shielding, and cable attachment for signs of wear or damage.
During installation, avoid using excessive force when tightening the TNC connection. Incorrect cable preparation or damaged shielding can affect signal quality even when the connector appears mechanically secure.
Compatible System Components
| Component | Function |
|---|---|
| Allen-Bradley 1786-TNCL10 | ControlNet TNC coaxial connector plug |
| Allen-Bradley 1786-RG6 | Standard ControlNet RG-6 coaxial cable |
| Allen-Bradley 1786-TNCJ4 | TNC jack-to-jack bullet connector |
| Allen-Bradley 1786-TNCJI4 | Isolated TNC jack-to-jack bulkhead connector |
| Allen-Bradley 1786-TNCLP4 | TNC plug-to-plug barrel connector |
| Allen-Bradley 1786-TNCLXT4 | TNC 75-ohm terminating resistor plug |
| Allen-Bradley 1786-BNC2TNC | Isolated BNC-to-TNC bulkhead connector |
| Allen-Bradley 1786-TCT2BD1 | IP67 TNC tap with straight BNC drop cable |
| Allen-Bradley 1786-TPST2T | Straight TNC-to-TNC ControlNet tap |
| Allen-Bradley 1786-TPRT2T | Right-angle TNC-to-TNC ControlNet tap |
Recommended Related Models
| Model / Product | Product Type | Typical Application |
|---|---|---|
| Allen-Bradley 1786-TNCJ4 | ControlNet TNC Jack-to-Jack Connector | Joining two compatible TNC cable plugs |
| Allen-Bradley 1786-TNCJI4 | ControlNet Isolated TNC Jack-to-Jack Connector | Providing an isolated panel bulkhead connection |
| Allen-Bradley 1786-TNCLP4 | ControlNet TNC Plug-to-Plug Connector | Connecting two compatible TNC jack interfaces |
| Allen-Bradley 1786-TNCLXT4 | ControlNet TNC 75-Ohm Terminator Plug | Terminating a compatible coaxial network segment |
| Allen-Bradley 1786-BNC2TNC | ControlNet BNC-to-TNC Isolated Bulkhead Connector | Connecting BNC and TNC media interfaces |
| Allen-Bradley 1786-TCT2BD1 | ControlNet Media IP67 TNC Connector Tap | Providing a sealed network tap connection |
Key Advantages
- Male TNC connector for compatible ControlNet coaxial interfaces.
- Suitable for RG-6 coaxial cable assemblies.
- IP67 protection when fully mated with compatible sealed components.
- Threaded coupling for secure mechanical connection.
- Maintains coaxial signal and shielding continuity.
- Passive operation without external power.
- Supplied in a 10-piece package.
Technical FAQs
1. What is the difference between the 1786-TNCL10 and 1786-TNCLP4?
The 1786-TNCL10 is a single male TNC cable connector used to terminate a coaxial cable. The 1786-TNCLP4 is a plug-to-plug barrel connector with male TNC interfaces at both ends, allowing two female TNC connections to be joined.
2. Can the 1786-TNCL10 connect directly to a ControlNet IP67 tap?
Yes, when the tap assembly provides a compatible female TNC interface. The connector must be properly installed on the coaxial cable and fully mated to maintain the intended environmental seal.
3. Is the 1786-TNCL10 a 75-ohm terminating resistor?
No. It is a TNC coaxial cable plug, not a terminating resistor. For a 75-ohm TNC termination, use the appropriate 1786-TNCLXT4 component.
4. How many connectors are included in one order of the 1786-TNCL10?
The standard ordering quantity is 10 pieces. This makes it suitable for cable preparation work involving multiple TNC connection points in a ControlNet installation.