AUDAC ARU20 Series, Руководство пользователя

Страница: 10 / 28

10
Chapter 2
ARU20x Overview
Connections description
Power supply (24V DC):
A 24 Volts power supply connection is provided on the left side of the ARU20x. An external
power supply should be connected to these terminal block connectors for powering the
device. Pay attention to the correct voltage and polarity when connecting the power supply.
Ethernet:
The ARU20x can be connected to an IP network using the ‘Ethernet’ RJ45 connector. When
connected in an IP network, all functions can be accessed over the network including
configuration, monitoring and control. The control of the system is possible through the
integrated HTML5 web-page which runs on the integrated web server, while control through
commands or the Audac Touch™ application is also possible. To ensure a reliable connection,
always use CAT5E (or better) cabling and 10 Mbit compatible network infrastructure.
RS485:
The RS485 databus is connected using RJ45 connectors and allows integration of the ARU20x
in any RS485 controlled system. It allows integration with peripheral devices connected to
your audio system or any other RS485 based network. The ARU208 contains two RS485
connections allowing daisy chaining of multiple units. The RS485 shall be terminated using
a bus termination jumper at the end of the line. More information about this can be found
in the next chapter.
Contacts inputs:
The contact inputs on the ARU20x are dry contact inputs which can be used for triggering
relays by external devices or actuators. These analogue dry contacts priority over the digital
functions / triggers. Typical applications are activations by external buttons, switches or alarm
contacts. Activation is done by making a contact between the ground and the contact for
the particular relay. When triggering the ‘A’ contact, all contacts will switch simultaneously.