UAC-CX-01RS4 Unitronics UniStream CX Com 1xRS485

Why Choose the Unitronics UAC-CX-01RS4 RS485 Communication Module?

The Unitronics UAC-CX-01RS4 is a compact and reliable RS485 communication expansion module designed for compatible UniStream Built-in PLC controllers. As part of the advanced Uni-COM CX communication module series, it provides a dedicated RS485 serial communication interface for connecting drives, remote I/O systems, HMIs, instrumentation and Modbus RTU devices across industrial automation networks.

Designed for machine builders and automation engineers, the UAC-CX-01RS4 enables long-distance, multi-drop serial communications without requiring external communication converters. The module plugs directly into compatible UniStream controllers, providing a simple and cost-effective method of expanding communication capabilities.

Featuring one galvanically isolated RS485 port, support for communication speeds up to 115,200 bps, network connections of up to 32 devices and communication distances of up to 1,200 metres, the UAC-CX-01RS4 is ideal for demanding industrial networking applications.

Key Advantages

• Adds one dedicated RS485 communication port to UniStream Built-in PLCs.
• Supports multi-drop networks with up to 32 nodes.
• Communication distances up to 1,200 m.
• Ideal for Modbus RTU and industrial serial networking.
• Galvanically isolated interface improves system reliability.
• DIP-switch selectable termination.
• Compact plug-in installation for UniStream controllers.

Key Features

• Unitronics Uni-COM CX UAC-CX-01RS4 module.
• 1 × RS485 communication port.
• 4-pin terminal block connection.
• Baud rate range from 1,200 to 115,200 bps.
• Supports up to 32 network nodes.
• Maximum communication distance of 1,200 m.
• 500 VAC port-to-bus isolation.
• DIP-switch configurable termination.
• Communication activity LED indicators.
• IP20 / NEMA 1 protection rating.
• Compatible with UniStream Built-in PLC platforms.

Technical Specifications

• Manufacturer: Unitronics
• Series: Uni-COM CX
• Model: UAC-CX-01RS4
• Product type: RS485 communication module
• Communication interface: RS485
• Number of ports: 1
• Connection type: 4-pin terminal block
• Baud rate: 1,200 to 115,200 bps
• Maximum nodes: 32
• Maximum cable length: 1,200 m (4,000 ft)
• Cable type: Shielded twisted pair compliant with EIA RS485
• Isolation voltage: 500 VAC for 1 minute
• Termination: DIP-switch selectable
• Protection rating: IP20 / NEMA 1
• Operating temperature: -20°C to +55°C
• Dimensions (H × W × D): Approx. 29 × 66.6 × 37.2 mm
• Weight: Approx. 24 g
• Compatibility: UniStream US5, US7 and US10 Built-in PLC controllers

Reliable RS485 Networking for Industrial Automation

The UAC-CX-01RS4 enables UniStream PLC systems to communicate with multiple industrial devices over a single RS485 network. RS485 remains one of the most widely used industrial communication standards thanks to its excellent noise immunity, long transmission distances and support for multi-device communication architectures.

The integrated termination DIP switches simplify installation while the isolated communication interface helps protect control systems from electrical interference. This makes the module particularly suitable for distributed automation systems, machine control applications and industrial process monitoring.

Typical Applications

• Modbus RTU communication networks.
• Industrial automation systems.
• Remote I/O communications.
• Variable speed drive integration.
• Machine control and OEM equipment.
• Building and process automation.
• Long-distance industrial communication networks.

Trusted by Automation Engineers Worldwide

Unitronics Uni-COM CX communication modules provide dependable industrial networking solutions, enabling UniStream PLC systems to integrate seamlessly with field devices, remote I/O systems and industrial serial communication networks.