Allen Bradley 1769-AENTR Ethernet IP Adapter

The AB 1769-AENTR is a Compact I/O EtherNet/IP adapter designed to interface 1769 I/O modules with controllers over EtherNet/IP networks. Equipped with dual Ethernet ports, it supports star, linear, and Device Level Ring (DLR) topologies, enabling high availability and fault-tolerant communication in distributed control systems.

This module allows up to 30 local I/O modules to connect to a Logix controller via standard Ethernet infrastructure. Its compact form factor and DIN rail mount design make it an ideal solution for distributed I/O in small-to-mid-sized machine control applications using CompactLogix or ControlLogix systems.

Technical Specifications

Model: 1769AENTR
Series: Compact I/O
Type: EtherNet/IP Communication Adapter
Network Ports: 2 x RJ45 (10/100 Mbps)
I/O Expansion Support: Up to 30 1769 I/O modules
Application: Distributed I/O connectivity for EtherNet/IP systems

Electrical Specifications

Input Voltage: Supplied via backplane (from power supply or upstream module)
Power Consumption: 3.3 W
Backplane Current Draw (5V): 500 mA
Backplane Current Draw (24V): 0 mA
Ethernet Speed: 10/100 Mbps auto-negotiation
IP Address Configuration: DHCP, BOOTP, or static
Redundancy Support: Yes – Device Level Ring (DLR) capable
Isolation: 1500V RMS Ethernet isolation
Inrush Current: <30 A

Mechanical Specifications

Width: 56.7 mm
Height: 132 mm
Depth: 105.1 mm
Mounting Type: DIN rail or panel mount (with adapter)
Connection Type: Dual RJ45 ports
Weight: Approx. 350 g
Installation Orientation: Vertical preferred
Housing Material: Industrial-grade plastic

Environmental Specifications

Operating Temperature: 0…60 °C
Storage Temperature: –40…85 °C
Relative Humidity: 5% to 95% non-condensing
Shock Resistance: 30 g, 11 ms (IEC 60068-2-27)
Vibration Resistance: 2 g, 10–500 Hz (IEC 60068-2-6)
Pollution Degree: 2
Altitude Rating: Up to 2000 m
Ingress Protection: IP20 (when installed in enclosure)
Certifications: CE, cULus, RCM, RoHS
Explosion Safety (Gas/Dust): Not rated

Compliance & Communication

Protocols Supported: EtherNet/IP
Unsupported Protocols: Data Highway, DeviceNet, Modbus, PROFIBUS
Programming Tools: Studio 5000 Logix Designer, RSLinx Classic / Enterprise
Network Diagnostics: Status LEDs for Link and Activity
System Compatibility: CompactLogix, ControlLogix (via Ethernet bridge)
Topology Support: Linear, Star, DLR (redundant ring)

Key Features & Benefits

✅ Dual Ethernet Ports with DLR – Enables fault-tolerant network topologies and high availability

✅ Supports 30 Local I/O Modules – Provides reliable remote I/O connectivity over EtherNet/IP

✅ Compact DIN Rail Mount Design – Ideal for distributed systems with limited panel space

✅ Integrated IP Address Configuration – DHCP, BOOTP, or static assignment for flexibility

✅ Status LEDs for Easy Diagnostics – Quickly identify network and module status

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