Allen Bradley | 1761-NET-AIC | MicroLogix Series | AIC+ Advanced Interface Converter

Product Description

The 1761-NET-AIC AIC+ Advanced Interface Converter from Allen Bradley is designed to provide reliable isolation and communication between controllers and peripheral devices. Supporting multiple protocols and connection types, it enables flexible integration of MicroLogix, SLC, and ControlLogix systems with operator interfaces, PCs, and modems. Although discontinued, it remains widely used in legacy automation environments requiring DF1, DH485, or RS485 communication.

Technical Specifications

• Manufacturer: Allen Bradley

• Product Line: MicroLogix 1000 / SST Communication Family

• Part Number: 1761-NET-AIC

• Category: Communication Interface Module

• Weight: 0.44 lbs (0.20 kg)

• Power Supply Requirement: 20.4–28.8 VDC

• Maximum Power Dissipation: 4.7 W

• Internal Isolation: 500 VDC

• Ports: 3 total (2 × RS-232, 1 × DH485)

• Supported Protocols: DF1, DH485, RS485

• Operation Modes:

• Point-to-point isolator

• RS-232 to RS-485 isolator

• RS-232 to half-duplex ASCII isolator

• Baud Rates Supported: 600, 1200, 2400, 4800, 9600, 14400, 19200 (auto-detect)

• Maximum Nodes: 32 per multidrop network

• Mounting Options: DIN rail or panel mount

• Operating Temperature: 0–60 °C (32–140 °F)

• Storage Temperature: –40–85 °C (–40–175 °F)

• Safety Feature: Master Control Relay

• Enclosure Type: Open-style

Device Compatibility

• SLC 500 processors (5/01, 5/02, 5/03 channel 1; 5/03, 5/04, 5/05 channel 0)

• MicroLogix controllers

• Logix controllers with 1756-DH485 module

• Operator interface devices

• PC serial ports (9-pin DTE)

• Modems

Key Features

• Provides isolation between RS-232 and DH485 networks.

• Supports multiple communication protocols for flexible integration.

• Compact design with DIN rail or panel mounting options.

• Enables ASCII communication in half-duplex mode.

• Legacy support for discontinued MicroLogix and SLC systems.

Application Scenarios

• Legacy automation systems requiring DH485 communication.

• Integration of MicroLogix controllers with operator interfaces.

• Industrial networks needing RS-232 to RS-485 isolation.

FAQ

Q: What protocols does the 1761-NET-AIC support?   A: DF1, DH485, and RS485.

Q: How many devices can be connected in a multidrop network?  A: Up to 32 nodes.

Q: Is this product still in production?  A: No, the 1761-NET-AIC is discontinued/obsolete but remains in use in legacy systems.

Q: How does this compare to the 1761-NET-DNI?  A: The 1761-NET-AIC supports DH485 and RS232 isolation, while the 1761-NET-DNI is designed for DeviceNet communication.