Product Details
Product Overview
The Allen Bradley 1747-AIC serves as the primary network interface for connecting SLC 500 processors and peripheral devices to a DH-485 network. This isolated link coupler provides a critical physical layer connection, ensuring stable data transmission between controllers, HMIs, and programming terminals. We supply this unit as 100% Brand New original hardware, delivering the electrical isolation necessary to protect your automation assets from ground loops and industrial noise.
Technical Specifications
The 1747-AIC features specialized circuitry designed to maintain signal integrity across extended DH-485 cable runs.
| Feature | Specification |
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Product Type | Isolated Link Coupler |
| Network Support | DH-485 (Full-Duplex & Half-Duplex) |
| Isolation Voltage | 1500V DC (Cable to Device) |
| Terminal Block | 6-Position Removable Terminal Block |
| Operating Temperature | 0 to 60°C (32 to 140°F) |
| Relative Humidity | 5% to 95% (Non-condensing) |
| Weight | 0.69 lbs (0.31 kg) |
| Compatible Hardware | SLC 500, 1747-PIC, 1747-DTAM-E |
Engineering Advantages
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1500V DC Electrical Isolation: The 1747-AIC incorporates a robust isolation barrier that withstands up to 1500V DC. This protects the SLC 500 processor from transient voltages and ground potential differences that often occur in large-scale plant networks spanning long distances.
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Versatile Network Topology: This coupler supports both full-duplex and half-duplex DH-485 configurations. It enables seamless communication between the controller and a variety of peripherals, including 1747-PIC interface converters and 1747-DTAM-E modules, without requiring external power for the link signals.
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Simplified Field Wiring: The 6-position removable terminal block allows for rapid wiring and maintenance. Technicians can pre-wire the network trunk and simply plug the block into the coupler, reducing the risk of wiring errors and minimizing downtime during system expansions.
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Industrial Grade Durability: Designed for high-temperature environments, the 1747-AIC operates reliably up to 140°F (60°C). Its compact, lightweight design fits easily into crowded control cabinets while maintaining the physical rigidity needed for vibration-prone industrial settings.
FAQs
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When do I need to use a 1747-AIC instead of a direct cable connection?
You must use the 1747-AIC whenever you connect an SLC 5/01, 5/02, or 5/03 to a DH-485 network trunk. The coupler provides the necessary 1500V isolation that standard cables lack, preventing ground loops from damaging the CPU’s communication port.
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Does the 1747-AIC require an external power source?
The 1747-AIC typically draws power from the SLC 500 processor or the peripheral device connected via the communication cable. If you are using the coupler as a standalone repeater or with certain non-powered devices, you may need to provide an external 24V DC source to the link side.
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Can I use this coupler with 1747-PIC Personal Interface Converters?
Yes. The 1747-AIC fully supports the 1747-PIC. This allows you to connect a PC for programming or monitoring while maintaining the isolation barrier between the computer and the industrial network.
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What is the maximum distance supported by the 1747-AIC?
In a standard DH-485 network using the 1747-AIC, the total trunk length can reach up to 4,000 feet (1,219 meters). Ensure you use high-quality shielded twisted-pair cable to maintain signal quality at these maximum distances.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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