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Home Product 1786-TNCJ4 Rockwell Automation Flex I/O ControlNet Dual-Port Hot-Swap Communication Module
Redundant Ethernet/IP to Profibus-PA Link device

1786-TNCJ4 Rockwell Automation Flex I/O ControlNet Dual-Port Hot-Swap Communication Module

1786-TNCJ4 Module
ControlNet Coax Junction
ControlNet T Tap Connector
1786-TNCJ4
1786-TNCJ4 Module functions as a ControlNet Coax Junction and T Tap Connector, enabling reliable network branching and device integration in industrial ControlNet systems.
Categories:Automation
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Product Description

The 1786-TNCJ4 Module is a ControlNet Coax Junction designed as a ControlNet T Tap Connector for robust industrial networking. It interfaces directly with up to 10 ControlNet-compatible modules, supporting high-speed data transmission (5 Mbps) over coaxial cables. Operating within 10-30V DC and a temperature range of -40°C to 75°C, this module is ideal for manufacturing, automation, and process control systems. Its compact design enables seamless integration into ControlNet backbones, featuring a durable 50-ohm coaxial port for reliable signal integrity. Key advantages include easy installation and rugged construction, though it requires specialized configuration tools. This module lacks integrated I/O, battery, or display but ensures precise network segmentation and minimal signal loss over extended distances.
Parameter Specification
Model Number 1786-TNCJ4 Module
Function ControlNet Coax Junction
Connector Type ControlNet T Tap Connector (TNC/BNC)
Network Compatibility ControlNet v2.x and later
Data Rate 5 Mbps (ControlNet)
Cable Interface Coaxial RG-6/Q, 75 Ω impedance
Termination Active termination via external network
Mounting DIN rail or panel mount
Operating Voltage 24V DC ±10%
Ingress Protection IP20 (indoor use)
Temperature Range 0°C to 60°C
Certifications UL, CE, RoHS compliant
question:Why did the product arrive with removed labels?
answer:Labels might be removed during logistics or customs. Please contact support with evidence for resolution.
question:How is warranty handled if a malfunction reveals refurbished parts?
answer:We will investigate, replace, or refund as needed. Contact our support team with order details.
question:Do you offer technical consultation for product selection?
answer:Yes, our experts provide guidance based on your needs. Share your requirements for assistance.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Why did the product arrive with removed labels?
answer:Labels might be removed during logistics or customs. Please contact support with evidence for resolution.
question:How is warranty handled if a malfunction reveals refurbished parts?
answer:We will investigate, replace, or refund as needed. Contact our support team with order details.
question:Do you offer technical consultation for product selection?
answer:Yes, our experts provide guidance based on your needs. Share your requirements for assistance.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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