OnQ Technologies, Inc.
P.O. Box 60907
Harrisburg, PA 17106-0907
800-321-2343
www.onqtech.com
P/N 364471 - A-Bus Volume Control
(shown w/decorator style cover plate)
Installation/Instruction Sheet
P/N 364472 - A-Bus Volume Control
w/IR
A-Bus Volume Controls
IS-0150 Rev. O
P/N 364473 - A-Bus Amplified
Keypad w/IR
1. Introduction
The product you have just purchased is an integral part of the OnQ A-BUS Multi-Room Audio System. It is a
component which, when combined with other essential components and your source equipment (receiver, CD
player, etc.), creates a versatile whole-house audio system that will fill your rooms with high-quality sound for
years to come. A-BUS technology is a new, innovative method of providing high quality audio to remote
locations with a single 8-conductor cable such as CAT 5. A-BUS technology provides many advantages over
other conventional methods of audio distribution such as simple, single CAT 5 wiring scheme, infrared control of
system components, infrared control of the optional P/N 364473 Amplified Keypad Module and system power
status.
2. Description
There are three (3) types of A-BUS volume controls offered by OnQ. The first style is the A-BUS Amplified
Volume Control (P/N 3644471-01, 364471-02, or 364471-03). It has a rotary knob for volume control, but does
not offer IR control. The next style is the A-BUS Amplified Volume Control with IR (P/N 364472-01, -02 or -03).
It offers IR control and also has a rotary volume control. The third style is the A-BUS Amplifier Keypad with IR
(P/N 364473-01, -02 or -03). It has push buttons for power and volume control and also controls IR. The OnQ
A-Bus Volume Controls contain both the amplifier for the room’s speakers, as well as, the control for those
speakers. One volume control should be used for each room you choose to control (one pair of speakers per
control). (Part Numbers: -01 = White, -02 = Almond, -03 = Ivory)
NOTE: The OnQ A-BUS Amplified Volume Controls and the OnQ Amplified Keypad require a decorator style
cover plate (shown above). This plate is not included.
IMPORTANT:
3. Operation
A.
IS-0150 Rev. O
Ref. P/N 100225-50
Read the manuals that are included with all associated A-BUS products before installation of any
single component! If you are unsure of any of the following installation procedures contact OnQ
Technical Support @ 1-800-321-2343 option 2 or contact an OnQ professional installer.
Volume Up/Down
Volume up and down can be controlled by rotating the knob on the Amplified Volume Control from
counter clockwise to clockwise or on the Amplified Keypad, pressing the Volume Up or Volume Down
buttons on the front. Refer to Figure 1.
Page 1 of 4
OnQ Technologies, Inc.
P.O. Box 60907
Harrisburg, PA 17106-0907
800-321-2343
www.onqtech.com
Installation/Instruction Sheet
A-Bus Volume Controls
IS-0150 Rev. O
Figure 1
B.
On/Off
The power on the Amplified Volume Control is turned ON by rotating the volume knob from full counter
clockwise position to clockwise position until a click is felt. Turning the volume control full counter
clockwise turns it off. The Amplified Keypad is turned ON and OFF by pressing the (I/0) push button.
Pressing this button toggles it ON and OFF. The markings on the power button are in binary.
The “I” is binary for ON and “0” is binary for OFF. To ensure that the Amplified Keypad Volume Control
does not power on with an excessive listening level, such as that used in a previous session, the keypad
volume control will default to a low volume position when powering up.
Refer to Figure 1.
C.
Source Component Control by IR
There is an infrared receiver window on the front of the Amplified Volume Control with IR and the
Amplified Keypad. These receivers can be used to control connected source equipment. Infrared
control signals are transmitted via the CAT 5 connecting cable to the A-BUS 4 Zone Distribution Hub
(P/N 364475-01). Infrared control signals can be transmitted to the source equipment by connecting
OnQ mini emitters (P/N 364494-01) into the A-BUS Source Input Unit (P/N 364474-01) emitter ports by
placing them onto the IR receiving windows of the source equipment. Refer to Figure 1.
D.
Infrared Confirmation:
When A-BUS Amplified Volume Control with IR or the A-Bus Amplified Keypad receives infrared control
signals from a remote control, the Status/IR indicator will flash red. Refer to Figure 1.
E.
System Status Control
This gives you a useful indication as to the power status of your equipment as well as providing an
“All Off” function. When your source equipment is on, the Status/IR indicator on the A-KP keypad will
illuminate green. When the source equipment off, all of the A-BUS Amplified Keypads in the system will
power down and all status/IR indicators will turn off.
F.
Volume Trim
Two rotary trim potentiometers are located on the backside of the A-Bus Amplifier Volume Controls and
the A-BUS Amplified Keypad. These can be used to adjust the maximum volume level of the volume
controls.; they can also be used as a balance control. Refer to Figure 6.
IS-0150 Rev. O
Ref. P/N 100225-50
Page 2 of 4
OnQ Technologies, Inc.
P.O. Box 60907
Harrisburg, PA 17106-0907
800-321-2343
www.onqtech.com
Installation/Instruction Sheet
A-Bus Volume Controls
IS-0150 Rev. O
4. Installation
A.
Make sure that the Power Supply (P/N 364447-01) is
not connected to the 4 Zone Distribution Hub
(P/N 364475-01). Also make sure that the status input
is not connected.
B.
Connect a CAT 5 cable from the A-BUS 4 Zone
Distribution Hub to the input of the volume control as
shown in Figure 2. Connection is made via 110 punch
down blocks and can be terminated with a 110 punch
down impact tool such as the OnQ model
(P/N 363293-01).
Figure 2
Be sure to follow the wire color code as follows:
moving left to right, with brown on the left, the white with color goes first followed by the solid. The pair
order is (left to right) brown/green/orange/blue. V+ = Brown, V- = Brown/White, L+ = Green,
L- = Green/White, R+ = Orange, R- = Orange/White, IR = Blue, ST =Blue/White. If the color code
above is not followed, you may encounter inconsistent operation of the A-KP. For optimal performance,
the maximum recommended wire length with standard CAT 5 cable is 100 feet.
C.
Connect Speaker wires to the speaker output terminals as shown in Figure 3.
Be sure to observe polarity (+ and -). Failure, reversal or mixed
polarity will cause performance loss or phasing effects to happen.
OnQ recommends using a high quality 16 gauge 2 conductor, UL
Class 2 speaker wire. Recommended strip length is ¼” or 6 mm.
D.
An external amplifier can be connected to allow for higher audio
output for areas that may require more power, such as a patio or
large listening area. This can also be used for adding a powered
sub-woofer for extended bass response. Connect the line input of
the external amplifier to the line output terminals as shown in
Figure 4.
E.
Once all of the connections have been made between A-BUS 4
Zone Distribution Hub, A-BUS Source Input Unit, A-BUS Amplified
Volume Controls and the A-BUS Amplified Keypads and speakers,
the A-BUS Power Supply 24VDC (P/N 364477-01) can then be connected to
the A-BUS 4 Zone Distribution Hub. The audio source can also be connected
to the Audio input jacks of the A-BUS Source Input Unit (P/N 364474-01).
See respective Instruction Sheets for more detail.
A-KP CONFIGURATION
F.
The status LED on the volume controls can be configured to be triggered by
an external source or to be constantly active. To use the status feature, set
the status selector on the volume control to the “ENABLE” position. All
Volume controls are shipped with the status Jumpers set to “OVERRIDE”
position by default. The status indicator jumper is located on the bottom side
of the volume controls. Refer to Figure 5 for status indicator jumper settings.
IS-0150 Rev. O
Ref. P/N 100225-50
Figure 3
Figure 4
Page 3 of 4
OnQ Technologies, Inc.
P.O. Box 60907
Harrisburg, PA 17106-0907
800-321-2343
www.onqtech.com
Installation/Instruction Sheet
A-Bus Volume Controls
IS-0150 Rev. O
G.
All volume controls have two volume-trim potentiometers
(L & R) located on the rear of them. These can be used to
limit the maximum volume level or to adjust balance.
Refer to Figure 6.
H.
Check all connections and proper system operation before
installing any volume controls in the wall.
I.
Using the included hardware, install the volume control into
a standard UL/CSA approved electrical J-box. Be sure to
Figure 5
leave some slack on the wire before you install the volume
control into the J-box, but avoid excess wire so as to
prevent putting undo stress onto the wire terminations and/or excessive pressure onto the rear of the
control by having an over stuffed J-box.
5. Specifications
A.
Input impedance: 28k Ohm Min. Line Input
B.
Power Requirements: +24VDC, 750mA
C.
Status input requirements: +12VDC, 20mA
D.
Weight: 6oz (.2kg)
E.
Dimensions (In-Wall): 1 3/4” W x 2 7/8” H x 1 3/4”
(4.5 x 7.3 x 4.5 cm)
Figure 6
IS-0150 Rev. O
Ref. P/N 100225-50
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