Model A-H4D
In-Wall, 4-Zone Hub
for A-BUS™ System
Instruction Manual
INSTRUCTIONS FOR CONNECTING AND USING RUSSOUND MODEL A-H4D. REFER TO THE DIAGRAMS INSIDE. A-H4D OVERVIEW
The A-H4D is an A-BUS™ in-wall, 4-zone, 1-source Audio
Distribution Hub used with A-BUS™ Amplified Modules. The A-H4D
can accomodate 4 additional Amplified Modules when used with
the A-H4Dx Expansion Hub, which plugs into the side of the
A-H4D.
IMPORTANT – Before installation, review the manuals included
with each component in your system. If you are unsure of any of
the installation procedures described herein or elsewhere, consult a
professional electronics installer.
A-H4D KEY FEATURES
1) 1 source audio input and loop output
2) 4 common IR outputs
3) Status power input with selector jumper (on rear)
4) Power input
5) Link In and Out
6) Plug-in connection for A-H4Dx Expansion Hub
6) Decora® faceplate (2-gang)
7) Front-panel connections for Audio, IR Emitters, Power,
and Status
Although the A-H4D has only 1 audio input, it can be connected to
multiple audio sources via the Tape 2 or Zone 2 output of a stereo or
home theater receiver. Connecting to a receiver gives the A-H4D
access to any audio source connected to that receiver. If a single
audio source is connected directly, it can be shared with the receiver
by using the Audio Out on the A-H4D.
A-KP2 keypads can be operated manually or by using the optional
A-KP RC remote control. A-VC2 volume controls are operated manu-
ally using the rotary knob. If you installed IR emitters (see Step 2),
then sources can be operated with their own remote control by aim-
ing it at the IR window on an A-KP2 keypad.
Connect four (4) A-BUS™ Amplified Modules to the A-H4D Hub
using CAT-5 cables. Both the Hub and the Amplified Modules use
110 punchdwon connectors for the 8 individual conductors of the
CAT-5 cable (use a punchdown tool with a 110 blade to insert the
conductors).
Common IR Outputs. Connect an IR emitter such as the 845.1 to
each of the 4 IR connectors on the front of the A-H4D (you need
use only one IR emitter if you’ve connected a single source directly
to the A-H4D). The IR signal that is received through a zone’s
Amplified Module is routed to the A-H4D’s Common IR outputs.
This allows remote operation of sources such as CD, DVD or DSS
from each zone.
5SOURCE
The A-H4D Hub and Amplified Modules are powered by the A-PS
24VDC/4A power supply. The A-PS should be plugged into an
unswitched AC outlet (one that is live all the time).
6POWER SUPPLY
1AMPLIFIED MODULES
The A-H4Dx is an Expansion Hub for the A-H4D that provides connec-
tons for 4 additional Amplified Modules. It plugs into the side of the
A-H4D. Multiple A-H4Dx Hubs can be added. Each A-H4Dx requires its
own A-PS power supply.
4A-H4Dx EXPANSION HUB
2IR EMITTERS
7OPERATION
The status feature provides two functions:
-Visually confirms when the source component is on
-When the source component is turned off, all Amplified Modules
will also turn off
The status feature requires that the source component has a
switched AC outlet.
To enable the status feature:
-Move the status jumper on all Amplified Modules to the
“Enabled” position.
-Move the jumper on the A-H4D to the “2-3” position.
-Using a Russound Model 846C 120V/12VDC or comparable
adapter, connect the coaxial plug end to the STATUS input on
the Hub, and plug the adapter into a switched AC outlet on the
source component.
When the source is on and supplying status voltage to the Hub, the
Amplified Module’s LED indicator will illuminate green. When the
source is turned off, all Amplified Modules that are on will also
turn off (the A-VC2 will mute).
IMPORTANT: When the status feature is enabled, it must be used
(i.e., supplied with power) in order to ensure proper operation with
accessories such as the A-LC2 Local Source Input Module.
3STATUS
A-BUS™ SYSTEM OVERVIEW
The product you have just purchased is an integral part of the Russound
A-BUS™ Multi-Room Audio System. It is a component which, when combined
with other essential components and your source equipment (receiver, CD play-
er, 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 methods of audio
distribution, including: simple, single CAT-5 wiring scheme; infrared control of
system components; infrared control of the optional A-KP2 amplified keypad
module; and system power status.
Every A-BUS™ System is comprised of components from each of the following
three areas.
1. A-BUS™ Amplified Modules: The Module contains both the amplifier for
the room’s speakers as well as the control for those speakers. One Module
should be used for each room you choose to control. The Russound A-KP2
Amplified Keypad (with built-in IR receiver) and A-VC2 Amplified Volume
Control are examples of A-BUS™ Amplified Modules.
2. A-BUS™ Hubs: All components of the A-BUS™ system must be wired cen-
trally to a Hub located near your source equipment. The Hub provides the
connection for source equipment, volume controls, infrared emitters and
power supply. The A-H484, A-H4, A-H4D, and A-H2 are examples of
A-BUS™ Hubs. The A-H484, A-H4, and A-H2 are surface-mount units. The
A-H4D is an in-wall Decora© style unit.
3. Power Supply: The power supply plugs into the Hub. The Russound A-PS
24VDC/4A unit is an example.
A-H4D SPECIFICATIONS
Power Supply: A-PS. 24VDC/4A.
Status Power: 12VDC/100mA.
Keypad Connection: CAT-5, 110 Punchdowns
Link Connection: CAT-5, 110 Punchdowns
Expansion Connection: 8-pin female connector
Emitter Connections: 1/8" Male. Tip (+), sleeve (–)
Dimensions: 3.54"W x 2.91"H x 1.456"D (90x74x37mm)
Weight: 8 oz. (226g)
LIMITED WARRANTY
The Russound A-H4D is fully guaranteed for Two (2) years from the date of purchase against
all defects in materials and workmanship. During this period Russound will replace any defec-
tive parts and correct any defect in workmanship without charge for either parts or labor.
For this warranty to apply, the unit must be installed and used according to its written
instructions. If service is necessary, it must be performed by Russound. The unit must be
returned to Russound at the owner’s expense and with prior written permission. Accidental
damage and shipping damage are not considered defects under the terms of the warranty.
Russound assumes no responsibility for defects resulting from abuse or servicing performed
by an agency or person not specifically authorized in writing by Russound. Damage to or
destruction of components due to improper use voids the warranty. In these cases the repair
will be made at the owner’s expense. To return for repairs, the unit must be shipped to
Russound at the owner’s expense, along with a note explaining the nature of the service
required. Be sure to pack in a corrugated container with at least 3 inches of resilient mate-
rial to protect the unit from damage in transit.
5 Forbes Rd. Newmarket, NH 03857, USA
☎ 603.659.5170 • Fax 603.659.5388
Come visit us at:
English
Install the A-H4D near your receiver and source components. Check
all connections and test the system’s operation before installing the
A-H4D into the wall. Using the included hardware, install the
A-H4D into a standard UL/CSA approved electrical J-Box as shown.
8MOUNTING
A-BUS™ is a registered trademark of LeisureTech Electronics Pty Ltd
Decora© is a trademark of Leviton Corporation
A-H4D 28-1133
