1769-CRL3 Allen-Bradley Expansion Cable

Allen-Bradley 1769-CRL3 CompactLogix Bank Expansion Cable

Allen-Bradley 1769-CRL3 CompactLogix Bank Expansion Cable

Availability: 99 left in stock

Allen-Bradley 1769-CRL3 CompactLogix Bank Expansion Cable The Allen-Bradley 1769-CRL3, also cataloged as the 1769-CRL3 Right-to-Left Expansion Cable, operates as a...

SKU: 1769-CRL3

Manufacturer: Allen Bradley
Product No.: 1769-CRL3
Product Type: Expansion Cables
Product Origin: USA
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Allen-Bradley 1769-CRL3 CompactLogix Bank Expansion Cable

The Allen-Bradley 1769-CRL3, also cataloged as the 1769-CRL3 Right-to-Left Expansion Cable, operates as a dedicated hardware component for backplane extension and bus signal routing within CompactLogix and MicroLogix 1500 networks.

Hardware Specifications

Parameter	Specification
Model	1769-CRL3
Brand	Allen-Bradley
Product Type	Right-to-Left Expansion Cable
Origin	USA
Length	1.0 Meter (3.28 Feet)
Weight	0.20 kg
Operating Temp	0 to 60 deg C
Storage Temp	-40 to 85 deg C
Backplane Connectivity	Transmits 5 VDC and 24 VDC logic power / bus signals
Max Cables per System	2 (supporting up to 3 I/O banks total)
Vibration Resistance	5G peak at 10-500 Hz
Shock Resistance (Operating)	30G (Panel Mount), 20G (DIN Rail)

Industrial Control & Backplane Bus Velocity

The expansion hardware dictates the physical extension of the 1769 parallel backplane bus communication velocity across distinct chassis boundaries. It maintains transmission integrity for the deterministic sub-millisecond execution loops required by CompactLogix 5370 L1, L2, and L3 processors. The internal conductor matrix is engineered to control impedance scaling across the 1-meter span, suppressing signal attenuation and propagation delays during multi-bank I/O density scaling routines.

Frequently Asked Questions

Q: Does the 1769-CRL3 cable support hot-swapping or live insertion? A: No. Connecting or disconnecting the expansion cable while the controller or any connected I/O banks are energized will disrupt backplane bus communication velocity, potentially causing immediate processor faults, data corruption, or hardware damage.

Q: What is the mechanical functional distinction of the Right-to-Left designation? A: The terminology defines the physical configuration of the hardware connections. The cable terminates on the right side of the primary or preceding module bank and routes across to interface into the left side of the subsequent downstream I/O module bank.

Field Installation Guidelines

Power down the controller and all connected power supplies across all system banks prior to installing or removing the cable assembly.
Align the left-hand connector pins with the expansion port of the downstream I/O bank and push firmly until the locking latches click into place.
Secure the right-hand terminator connector to the preceding module bank, ensuring a flush connection with the adjacent 1769 module.
Verify that the total number of expansion cables within the complete system architecture does not exceed the limit of 2, supporting a maximum of 3 I/O banks.
Avoid bending radii tighter than the standard minimum limits for industrial shielding to maintain optimal signal velocity and protect internal conductors from long-term stress fractures.

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