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Allen-Bradley 1734-485ASC | ASCII Interface Module

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About the Product

Allen-Bradley 1734-485ASC – RS-485/422 ASCII Interface Module

Core Functionality

Industrial-grade POINT I/O module for seamless ASCII device integration via RS-485 (2-wire) or RS-422 (4-wire) networks. Ideal for noisy environments with shielded cable support.

Key Specifications

Electrical
• 10-28.8VDC operating range
• 24VDC nominal voltage
• Low 15mA power consumption

Communication
• Dual RS-485/RS-422 support
• ASCII protocol compatibility
• Configurable buffer sizes

Mechanical
• DIN rail mounting
• Compact 1734 series form factor
• Key switch position: 2

Environmental
• Industrial noise immunity
• Shielded cable required
• No chassis ground on terminal block

Top Industrial Uses

  • ✔ Legacy device connectivity
  • ✔ Sensor data aggregation
  • ✔ Barcode/RFID systems
  • ✔ Quality control stations
  • ✔ Automated material handling

Shielding Best Practices

Critical Installation Note: Use shielded cables with single-end grounding (DIN rail only) to prevent ground loops. Never connect shield to logic ground.

Configuration Highlights

  1. Set buffer sizes (default: 20 bytes)
  2. Define end-of-string terminators
  3. Map DeviceNet messages to serial port
  4. Verify LED status indicators

Package Includes

✅ 1734-485ASC Module ❌ No terminal block
✅ Documentation ❌ No cables

Why Customers Choose This

Reliable
Industrial noise immunity

Flexible
Dual network support

Compact
Space-saving design

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  • Returns: 30-day return policy for defective or mismatched parts, ensuring peace of mind.
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  • Custom Calibration: Provide your specifications, and we’ll handle the rest with precision.
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