Allen-Bradley 1738-ACNR | ArmorPoint ControlNet Redundant Communication Adapter with TNC Connectors

Overview

The Allen-Bradley 1738-ACNR is an ArmorPoint I/O ControlNet adapter designed to provide redundant communication for distributed I/O systems. Featuring dual TNC-style connectors for ControlNet A and B channels, this adapter ensures reliable and continuous network connectivity. Its IP67-rated sealed housing makes it suitable for harsh industrial environments without the need for additional enclosures.

Key Features

• Redundant ControlNet Communication:

  • Dual TNC connectors for primary (A) and secondary (B) channels

  • Supports redundant media configurations for enhanced reliability

• Robust Industrial Design:

  • IP67-rated for protection against dust and water ingress

  • Suitable for use in demanding environments without additional enclosures

• High I/O Capacity:

  • Supports up to 63 ArmorPoint I/O modules

  • Provides 1.0A of backplane current; expandable with 1738-EP24DC modules

• Integrated Power Supply:

  • Operates on 24V DC input voltage

  • Consumes a maximum of 10.2W at 28.8V DC

• Diagnostic Indicators:

  • LED indicators for Adapter Status, PointBus Status, ControlNet A and B Status, System Power, and Adapter Power

Technical Specifications

• Model: 1738-ACNR

• Communication Protocol: ControlNet

• Connectors:

  • Two TNC-style for ControlNet A and B

  • One mini-style for auxiliary power

• Power Requirements:

  • Input Voltage: 24V DC (10–28.8V DC range)

  • Inrush Current: 6A max for 10ms

  • Field Side Power: 425mA @ 24V DC

• Environmental Ratings:

  • Operating Temperature: -20°C to +60°C (-4°F to +140°F)

  • Storage Temperature: -40°C to +85°C (-40°F to +185°F)

  • Relative Humidity: 5% to 95% non-condensing

  • Shock: 30g operating, 50g non-operating

  • Vibration: 5g @ 10–500Hz

• Dimensions:

  • Height: 4.41 in (112 mm)

  • Width: 2.83 in (72 mm)

  • Depth: 2.56 in (65 mm)

• Certifications:

  • UL Listed

  • CE Marked

  • C-Tick

  • ControlNet International conformance tested

Applications

• Distributed I/O Systems:

  • Facilitates reliable communication between controllers and remote I/O modules in industrial automation setups

• Harsh Industrial Environments:

  • Suitable for applications requiring rugged, dust-tight, and water-resistant components

• Redundant Network Configurations:

  • Ideal for systems where network redundancy is critical to maintain continuous operation

Order Now

Available and ships worldwide. Ask about compatible ArmorPoint I/O modules, power extenders, or ControlNet accessories.