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| Place of Origin: | U.K. |
| Brand Name: | Control Techniques |
| Certification: | COO & COC |
| Model Number: | AI-485 82500000000003 |
AI-485 Control Techniques 82500000000003 RS485 Communication Interface Module
The AI-485 installs directly into the option module slot on the front of supported Control Techniques drives, delivering galvanically isolated RS485 connectivity with built-in termination and biasing resistors. With support for up to 32 devices on a single bus and data rates up to 115.2 kbps, it ensures stable, noise-immune communication even in electrically noisy industrial environments.This module is fully compliant with EIA/TIA-485 standards and integrates natively with Modbus RTU, making it easy to connect to Rockwell, Siemens, Schneider, and other major automation platforms.
Core Functions
Plug-and-Play Drive Integration
Installs directly into the drive’s option slot—no external wiring or power supply needed
Automatic recognition by Unidrive SP and M700 series firmware
Galvanic Isolation for Noise Immunity
2.5 kV isolation between drive logic and RS485 bus
Protects against ground loops and electrical transients
Core Features
| Model Number | AI-485 |
| Manufacturer P/N | 8.25E+13 |
| Brand | Control Techniques (Nidec Industrial Automation) |
| Interface Type | RS485 (2-wire, half-duplex) |
| Protocol Support | Modbus RTU (default) |
| Baud Rate | 9600, 19200, 38400, 57600, 115200 bps (configurable) |
| Max Devices on Bus | 32 |
| Max Cable Length | 1,200 m (at 9.6 kbps) |
| Isolation Voltage | 2.5 kV |
| Termination Resistor | 120 Ω (switchable) |
| Mounting | Internal option slot on compatible drives |
| LED Indicators | TX (green), RX (yellow) |
| Certifications | CE, RoHS, EN 61800-5-1 |
Product details pictures
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