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Allen-Bradley 1786-BNC2TNC ControlNet BNC-to-TNC Isolated Bulkhead Coaxial Adapter – Technical Specifications and FAQ
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Allen-Bradley |
| Manufacturer | Rockwell Automation |
| Model | 1786-BNC2TNC |
| Product Series | ControlNet |
| Product Type | BNC-to-TNC Coaxial Adapter |
| Connector Configuration | BNC to TNC |
| Bulkhead Type | Isolated Bulkhead |
| Main Function | Connects a BNC coaxial cable segment to a TNC coaxial cable segment |
| Network Application | ControlNet industrial communication |
| Installation | Panel, cabinet, or wall mounting |
| Isolation | Isolated coaxial bulkhead connection |
| Cable Type | ControlNet coaxial cable |
| Operating Temperature | 0–60°C |
| Storage Temperature | -40–85°C |
| Relative Humidity | 5–95%, non-condensing |
| Protection Rating | IP67 at the truck/tap connection when properly wired and locked |
| Dimensions | 50 × 20 × 40 mm |
| Weight | Approx. 0.1 kg (distributor-listed; verify actual item and packaging) |
| Country of Origin | Multiple countries, depending on manufacturing location |
| Lifecycle Status | Discontinued March 20, 2025; no planned Rockwell replacement |
| UPC | 612598207671 |
FAQ
FAQ
Q1: What is the Allen-Bradley 1786-BNC2TNC?
A: It is a ControlNet coaxial adapter designed to connect BNC coaxial cable segments to TNC coaxial cable segments.
Q2: What is the main function of this adapter?
A: It provides a connection between different ControlNet coaxial cable interfaces and allows a cable segment to be isolated or installed through a cabinet or wall bulkhead.
Q3: What connector types does it use?
A: It uses a BNC connection on one side and a TNC connection on the other side.
Q4: Is the 1786-BNC2TNC suitable for ControlNet networks?
A: Yes. It is specifically designed for ControlNet coaxial media installations.
Q5: Can it be installed in a control cabinet or wall?
A: Yes. Its isolated bulkhead design supports installation in cabinets, panels, and walls.
Q6: What is the operating temperature range?
A: The specified operating temperature is 0–60°C, while the storage temperature range is -40–85°C.
Q7: What are the dimensions and weight?
A: Rockwell’s installation instructions do not specify the complete overall dimensions. A distributor lists an approximate weight of 0.1 kg; confirm the actual packed weight with the supplier.
Q8: Is the 1786-BNC2TNC discontinued?
A: Yes. Rockwell Automation announced its discontinuation effective March 20, 2025, with no planned replacement.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
