The Audac ARU204 Multi-Channel Digital Relay Unit with 4 Relays, redefines digital relay units with its exceptional flexibility and control. Effortlessly switch between audio sources, manage signal routing, and create custom automation setups – all through a user-friendly web interface or external control systems.

This innovative unit boasts four independent relays, capable of handling a wide range of signals. From delicate line-level audio to high-powered speakers and even AC mains voltage, the ARU204 adapts to your needs. Control options are equally diverse, with the ability to manage relays via web interface, paging consoles, or external dry contact triggers like buttons, switches, or alarm systems. Compatibility extends to balanced mono and unbalanced stereo signals, with both Normally Open (NO) and Normally Closed (NC) contacts for maximum versatility.

The ARU204 seamlessly integrates with any Ethernet network using TCP/IP control. A freely available command set further enhances this integration, allowing for effortless connection with existing control or automation systems. The modular design allows for simple expansion in larger installations. Utilize RS485 daisy-chaining to connect multiple ARU204 units and create a control system that scales with your needs.

Installation is a breeze thanks to the compact DIN rail mountable design. The spring mechanism ensures quick and secure installation in any standard electrical cabinet.

The AUDAC ARU204 is ideal for a variety of applications. Audio/video distribution becomes effortless, allowing you to switch between sources and route signals for optimal experiences. In the realm of home automation, the ARU204 integrates with lighting, security systems, and more to create custom automation routines. Commercial establishments like retail stores and restaurants also benefit from the ARU204's ability to control audio, video, or power distribution.

Take command of your audio, video, and more with the unparalleled control and flexibility offered by the AUDAC ARU204 digital relay unit.

Key Features

• Supports AUDAC Touch™ for seamless compatibility
  
• Allows remote control through a user-friendly web interface using HTML5 technology
  
• Designed with a DIN rail mounting enclosure for easy installation
  
• Provides control options through RS485 and TCP/IP protocols
  
• Features pre-programmed timed relay triggering for automated operations
  
• Equipped with terminal block connections for convenient input and output connections
  
• Includes double pole relays with both Normal Open (NO) and Normal Closed (NC) contacts for versatile functionality.

Technical Specifications

System
Number of relays
4
Contacts
Normal open & normal closed
Control
Digital communication bus (RS-485)
Manual (contact) relay activation
TCP/IP
Audac Touch™
Connectors
RJ45 (Ethernet)
1 x RJ45 (RS-485 + Audio)
Max. cable length
11811.024 "
Connection standard
TIA/EIA T568B
Relay Type
Two pole type
Inputs Signal
8 x 3-pin screw terminal for A & B input
Outputs Signal
8 x 2-pin screw terminal
Power Consumption
6 W (max.)
Supply
24 V DC

Product Features
Dimensions
4.21 x 3.44 x 2.13 " (W x H x D)
Weight
0.44 lb
Data protocol
RS-485
Required cabling
UTP CAT5E
Colours
Black
Construction
ABS
Accessories (Optional – NOT included)
PSD24x external Power supply