Allen-Bradley 1769-CRL1 CompactLogix Expansion Cable The Allen-Bradley 1769-CRL1, also cataloged as the 1769-CRL1 Expansion Cable, operates as a dedicated hardware...
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The Allen-Bradley 1769-CRL1, also cataloged as the 1769-CRL1 Expansion Cable, operates as a dedicated hardware component for right-to-left bus extension between CompactLogix and MicroLogix 1500 controller systems. It provides a physical connection path for CompactLogix I/O expansion assemblies.
Hardware Specifications
Parameter
Specification
Model
1769-CRL1
Brand
Allen-Bradley
Origin
USA
Weight
0.63 lbs (0.28 kg)
Dimensions
1 ft cable length
Operating Temp
32 deg F to 140 deg F
Power Consumption
33.6 Watts
Product Line
CompactLogix
Module Type
Expansion Cable
Connection Direction
Right to Left Bus Extension
Cable Length
1 ft
Isolation Voltage
30 Volts Continuous
Backplane Current
1.4 Amps at 24 Volts
Power Dissipation
7.5 Watts
Termination
Supplied with termination caps
Communication Function
CompactLogix bus extension connection
EtherNet/IP and CompactLogix Bus Integration
The 1769-CRL1 functions as a passive bus extension component within the Allen-Bradley CompactLogix platform. It maintains the physical connection between separated controller and I/O assemblies. Therefore, the cable supports right-to-left expansion arrangements where module positioning requires additional spacing.
The CompactLogix architecture uses backplane bus communication for controller and I/O module data exchange. The 1769-CRL1 provides the required electrical interconnection path while maintaining the specified isolation voltage and current loading characteristics. Furthermore, the cable enables connection between CompactLogix controllers and MicroLogix 1500 systems that use compatible 1769 expansion hardware.
Frequently Asked Questions
Q: What is the primary function of the Allen-Bradley 1769-CRL1 cable? A: The 1769-CRL1 provides a right-to-left bus extension connection for CompactLogix expansion assemblies. It transfers backplane communication signals between connected hardware sections.
Q: Does the 1769-CRL1 include termination components? A: Yes. The 1769-CRL1 includes termination caps required for proper installation within the CompactLogix expansion configuration.
Q: Can the 1769-CRL1 be used with MicroLogix 1500 controllers? A: Yes. The cable supports connection between compatible Allen-Bradley CompactLogix and MicroLogix 1500 controller systems.
Field Installation Guidelines
Install the 1769-CRL1 according to the CompactLogix hardware configuration requirements. Verify the required right-to-left bus orientation before connecting the cable between modules.
Ensure that the termination caps remain installed at the correct bus endpoints. Avoid excessive bending, mechanical stress, or routing near high-voltage conductors that may introduce electrical interference.
During installation, inspect connector contacts for contamination or mechanical damage. Maintain proper cabinet grounding practices and separate communication wiring from power circuits to reduce electrical noise exposure.
