Advertisement
6.5.3
Volume control using a passive Home control system.
The output power of the amplifier can also be set by a passive dimmer
control which is connected to the 3.5mm volume control jack on top of
the amplifier.
In this configuration the abitana amplifier provides a fixed current of
100µA on the ring of the 3,5mm connector. As soon as this current is
provided to the dimmer control module, this one can vary the control
voltage according to the user's commands (usually between 1 and
10V). The tip of the 3,5mm plug has to be connected to the ring to
provide the control voltage to the volume control of the amplifier.
The amplifier will be muted when a voltage between 0V and 1V is
applied.
The volume will be controlled in 64 (logarithmic) steps by changing the
control voltage from 1V to 10V. The maximum gain will be reached at
10V.
The following drawing shows the different signals on the control
connector:
[OUT] REFERENCE CURRENT 100µA
[IN] CONTROL VOLTAGE 0-10V
6.6
Line input
It is possible to connect the amplifier to any audio source with a line
level output. This source can be attached directly to the amplifier when
the source is located near the amplifier. In case the source is located
elsewhere in house, it can be connected to the amplifier using the
abitana cabling and the audio adapters (ABI-MM1009S00).
Connect the audio source to the line input connector of the amplifier
(
)
Turn on the power supply and check the functionality.
Français
120928_ABI-MM1001S40_QSG_ML
GROUN
AFSCHERMING
RING
TIP
LEFT
TIP
RIGHT
RING
GROUND
SHIELDING
6.7
Usage of the line output / Daisy chaining two amplifiers
It is possible to daisy chain 2 or more amplifiers for larger rooms where
more power is required and/or more speakers are required. This can
easily be achieved by connecting the line output of one amplifier to the
line input of a second amplifier, using the supplied 3.5mm stereo cable.
Remark: Only the line inputs and outputs should be connected
together! Every amplifier should be directly connected to its
corresponding speakers.
_
+
7
Installation of the ABI-MM1001S40
Open the patch cabinet and click the module ABI-MM1001S40 onto
the DIN-rail.
Page 10
ENGLISH
Option:
Volume Control
abitana
N.V.
S.A.
Advertisement
