Allen-Bradley 1771-ASB Remote I/O Adapter Module

FAQ

Q1. What is the 1771-ASB used for?
It is a Remote I/O Adapter used to connect 1771 I/O chassis to PLC-2/3/5 systems.

Q2. Which PLC systems support this module?
It is compatible with Allen-Bradley PLC-2, PLC-3, and PLC-5 platforms.

Q3. What communication protocol does it use?
It uses Allen-Bradley Remote I/O (RIO) communication.

Q4. What cable is required for connection?
Belden 9463 “Blue Hose” cable is commonly used for RIO networks.

Q5. What is the maximum communication distance?
Up to 10,000 feet at 57.6 kbps, depending on network configuration.

Q6. What is the power consumption?
Approximately 1.0 A at 5 V DC with about 5 W dissipation.

Q7. What are its physical dimensions?
About 105 mm × 375 mm × 350 mm.

Q8. Is it still in production?
No, it is a discontinued legacy module but still widely used in existing industrial systems.

1771-ASB Allen Bradley

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