Allen Bradley 1769-ECR CompactLogix Right-Side End Cap/Terminator

Overview

The Allen Bradley 1769-ECR is a right-side end cap/terminator designed for the CompactLogix 1769 I/O system. It is installed at the end of an I/O assembly to properly terminate the backplane communication bus, ensuring stable system operation and reliable data transmission across modular PLC networks. This passive component is essential for maintaining signal integrity in distributed control configurations.

General Information

Part Number: 1769-ECR

Manufacturer: Allen-Bradley (Rockwell Automation)

Brand: Allen-Bradley

Country of Origin: USA

Series: CompactLogix 1769

Type: Right-Side End Cap / Bus Terminator

Function: Provides termination for the right-side end of the 1769 I/O backplane

Mounting: Installed directly on the final module of a CompactLogix I/O rack

Technology: Passive electrical termination for bus stabilization and signal integrity

Power Specifications

Operating Power: Not required (passive component)

Backplane Consumption: 0 W

Input Power: None

Protection Function: Prevents signal reflection and communication instability on the I/O bus

Indicators: None (no LEDs or active components)

Communication & Interface

Bus Role: Terminates CompactLogix 1769 I/O backplane communication line

Interface Type: Backplane electrical termination interface

System Compatibility: Allen-Bradley CompactLogix 1769 series modules

Data Processing: None (purely passive termination function)

Diagnostics: Not supported

Environmental

Operating Temperature: 0 to 60 °C

Storage Temperature: −40 to 85 °C

Humidity: 5% to 95% non-condensing

Vibration Resistance: Industrial-grade control cabinet suitability

Protection Rating: IP20 for enclosed panel installation

Dimensions & Weight

Dimensions (H × W × D): 118 × 18 × 85 mm

Weight: 0.05 kg

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