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Allen Bradley 1747-AICR Isolated Link Coupler with 24VDC External Power 470mA Backplane Current
Allen Bradley 1747-AICR Isolated Link Coupler with 24VDC External Power 470mA Backplane Current
24VDC External Power Isolated Link Coupler
470mA Backplane Current Link Coupler
2.49 Watts Thermal Dissipation DH-485 Coupler
Place of Origin:
USA
Brand Name:
Allen Bradley
Model Number:
1747-AICR
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Product Details
Quality:
Original Module
Product Model:
1747-AICR
Country Of Origin:
USA
Shipping:
TNT, DHL, FedEx, EMS, UPS
Warranty:
365 Days
Condition:
New
Product Parameters:
Isolated Link Coupler
Place Of Shipment:
Xiamen,China
Highlight:
24VDC External Power Isolated Link Coupler
,470mA Backplane Current Link Coupler
,2.49 Watts Thermal Dissipation DH-485 Coupler
Payment & Shipping Terms
Minimum Order Quantity
1
Price
66USD
Packaging Details
Brand new and original
Delivery Time
2-3 work days
Payment Terms
T/T
Supply Ability
in stock
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Product Description
Product Specifications
| Product Model | 1747-AICR |
| Product Parameters | Isolated Link Coupler |
| Country of Origin | USA |
| Place of Shipment | Xiamen, China |
| Estimated Shipping Size | 3.5x13x14.5cm |
| Manufacturer | Allen-Bradley |
| Weight | 0.16 kg |
| External Power | 24VDC |
| Backplane Current (5 Volts) | 470 milliamps |
| Rated Current | 190 mA |
| Thermal Dissipation | 2.49 Watts |
Technical Questions & Answers
Thermal Management: Is the 2.49 Watts dissipation a concern in high-density racks?
At 2.49 Watts, the thermal signature is relatively low. However, in sealed NEMA enclosures with multiple high-output analog cards, heat stacking occurs. We recommend maintaining standard 2-inch (50.8 mm) clearance around the unit to ensure passive convection keeps the internal components within the rated operating temperature.
Physical Integration: Will the 0.16 kg weight and 3.5x13x14.5cm dimensions fit a standard DIN rail?
The 1747-AICR is designed for compact footprints. Its lightweight 0.16 kg build makes it ideal for door-mounting or DIN-rail installation without causing rail sag. The slim 3.5cm width (approx. 1.38 inches) allows for high-density mounting in "shoe-box" style control panels where rail space is at a premium.
Signal Integrity: Why is isolation critical for DH-485 links exceeding 10 meters?
On long cable runs, different points in a factory can have ground potential differences of several volts. Without the Isolated Link Coupler, these differences create "ground loops" that inject noise into the data stream, causing CRC errors and dropped nodes. The AICR breaks this path, ensuring clean signal transitions across the differential pair.
Maintenance Logic: Does the 1747-AICR require software configuration?
No. The 1747-AICR is a hardware-layer device. It does not require an IP address or node commissioning in RSLogix. It is "plug-and-play" regarding logic; however, you must ensure the baud rate and termination resistors on the physical DH-485 network are correctly set at the end-of-line nodes to match the coupler's throughput.
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