Rear Panel Description - Apex Digital LIVIAU S User Manual

Audio/video/lightning controller

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Table Of Contents

Table of Contents

Rear panel

All connections to LIVIAU, with the exception of the side panel

USB and HDMI input ports are made via the rear panel.

Phoenix Contact power connector – use the 24V DC power

supply provided with LIVIAU device and connect it by using

the wiring diagram in the wiring section

Audio amplified outputs – connect your passive speakers

via Phoenix Contact 1x4 connector plug using the schema-

tic in the wiring section. Audio signal on this terminal is am-

plified to the speaker signal level by a 2x50W @4Ω internal

amplifier.

Audio Out DB-25 – provides balanced audio LINE output

signals used for connecting the device onto stable ampli-

fied platforms such as Hi-Fi amplifiers and receivers, PA

systems, 100V amplifiers, powered speakers, headphones,

etc. Line out signal is an alternating current signal without

a DC offset. Line output signals have a maximum level of

20dBu.

Audio In DB-25 – Input channels 1 and 2, also known as

MIC channels, are intended for use with electronically ba-

lanced microphone audio signals, in addition channels 3 to

6 are intended for use with LINE in audio signals. Differential

input resistance for MIC channels is 9.2kΩ and is designed

to meet the requirements of low level microphone signals

that are amplified and brought up to line level. LINE in dif-

ferential input resistance is 16kΩ and is designed to allow

20dBu line level signals. It is intended by designers that the

line in of one device be connected to the line out of another.

General purpose input/output connection

Negative Terminal (–) - Each negative terminal is coupled

with positive terminal above it.

Positive Terminal (+) - General input output pins that are

electrically isolated via optocoupler.

There are four dedicated outputs, two dedicated inputs and

two software selectable input/outputs. GPIOs are designed

for controlling 24V devices. Inputs do not have current

limiting resistors so these must be provided outside the

device.

DMX512 connection – LIVIAU can be used to control

DMX512 enabled devices such as those used in stage

lighting or in office ambient light level equipment. Phoenix

Contact connector is intended for use with XLR-3 ready sy-

stems. Use the wiring diagram in the wiring section to deter-

mine the right pinout.

RS232 transceiver – used for serial communication and

UART3 loopback testing.

Ethernet port - The rear panel Ethernet port allow the

LIVIAU to be connected to a Gigabit Ethernet network and

gain access to the internet. Although it has wireless network

capabilities built in, it is always preferred to have a stable,

wired, network access.

HDMI output connection – standard HDMI port that utilizes

a type D Micro HDMI connector. Used for connecting HDMI

compatible devices such as computer monitors, video pro-

jectors, digital TVs, etc.

Infrared connection – used for connecting external infra-

red controller units. Pin+ has a stable voltage of 5V DC

@200mA max current, and Pin- outputs a modulated data

signal with peak voltage of +5V.