Audac ARU104MK2


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Audac professional Digital Relay Group – 4 Zones

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Number of relays 4
Contacts Normal open & normal closed
Control Digital communication bus (RS-485)
Manual (contact) relay activation
Indicators Relay activation indicator LED’s
Connectors 2 x RJ45 (input & linkthrough outputs)
Max. cable length 300 m
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 112.8 x 50.4 x 132 mm (W x H x D)
Weight 0.580 kg
Data protocol RS-485
Required cabling UTP CAT5E
Colours Green
Construction Unbreakable plastic housing

Audac ARU104MK2 flexible relay module – Doneo Malta

The ARU104MK2 is a special designed flexible relay module, consisting of 4 relays.

These can be used for switching between two different input signals. In the most common situations, a background music signal and a priority signal are applied. In combination with the APM paging consoles, it offers a simple and versatile paging solution that can be applied to all types of systems. It has full priority and can be switched between 100V and standard low impedance speaker signals as well as line level signals. There’s the possibility to connect multiple units in cascade which offers a wide range of possibilities for all kinds of applications.

They are suitable to be mounted on a standard DIN rail, providing connection strips for the in- and output signals.

Additional information



Product Type

Audio Switches

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