Excellent PLC
Product Introduction
The Allen Bradley 1769-CRR1 CompactLogix Compact I/O Communication Bus Expansion Cable is designed to extend the communication bus between CompactLogix 1769 I/O module banks. This cable enables reliable backplane communication when multiple Compact I/O banks are installed in separate mounting groups within a control cabinet.
The 1769-CRR1 cable specifically supports right bank to right bank connections, allowing the expansion of Compact I/O systems while maintaining stable data exchange between modules and the controller. By extending the communication bus, the cable enables system designers to create more flexible panel layouts and distributed I/O configurations.
In many automation systems, physical space limitations require I/O modules to be installed in multiple groups rather than in a single continuous rack. The 1769-CRR1 communication cable solves this challenge by maintaining the internal CompactLogix backplane communication across separated module banks.
Engineered for industrial environments, the cable supports stable communication performance under standard industrial operating temperatures and provides electrical isolation to ensure reliable signal transmission. Its durable construction and optimized electrical characteristics make it suitable for long-term operation in automation systems such as manufacturing lines, machine control systems, and process automation platforms.
Product Specifications
| Parameter | Description |
|---|---|
| Product Name | Compact I/O Communication Bus Expansion Cable |
| Model Number | 1769-CRR1 |
| Series | CompactLogix 1769 I/O Series |
| Manufacturer | Allen Bradley |
| Cable Type | Compact I/O communication bus expansion cable |
| Connection Type | Right bank to right bank |
| Cable Length | 0.3 m |
| Operating Temperature | 0 to 60 °C (32 to 140 °F) |
| Isolation Voltage | 30 V continuous |
| Backplane Current | 1.4 A at 24 V |
| Power Consumption | 33.6 W |
| System Function | Expands Compact I/O communication bus between module banks |
| Compatibility | CompactLogix 1769 I/O systems |
| Weight | 0.3 kg |
Applications
• CompactLogix I/O system expansion – Enables communication between separated Compact I/O module banks within the same automation system.
• Industrial control cabinet installations – Provides flexible layout options when I/O modules cannot be mounted in a single continuous rack.
• Machine automation systems – Supports communication between distributed I/O modules used for machine monitoring and control.
• Manufacturing production lines – Connects multiple Compact I/O banks used to monitor sensors and control actuators across production equipment.
• Process automation systems – Ensures stable communication between controller-connected I/O modules located in different cabinet sections.
• Distributed equipment control – Allows expansion of I/O infrastructure without redesigning the entire system architecture.
Advantages
• Flexible system layout – Allows Compact I/O modules to be installed in multiple banks while maintaining reliable backplane communication.
• Stable communication performance – Ensures continuous data exchange between CompactLogix controllers and connected I/O modules.
• Industrial-grade electrical isolation – Protects communication signals from electrical interference and voltage disturbances.
• Simple system expansion – Enables quick addition of new module banks without complex network configuration.
• Compact and easy installation – Designed for straightforward connection between module banks in control cabinets.
• High compatibility with CompactLogix systems – Specifically engineered for use with Allen Bradley 1769 series Compact I/O platforms.
• Reliable industrial operation – Built to operate within standard industrial temperature ranges for long-term system stability.
