5
Optional Step Five: Status Power Connection
If your system requires that the remote A-BUS models are active and able to
receive commands when the host receiver, processor or preamplifier is not
turned on, connect an optional power supply to the
Status Input
¡
. The
power supply is the small type typically used to power portable electronics
products and should provide a nominal 12 volts DC at 200 mA, using a
standard 2.1 plug with “Center Positive”.
Optional Step Six: Connect IR Emitters
If you are not using direct IR control connections to “IR In” jacks on products
by Harman Kardon and wish to control a receiver, processor or preamp, or a
source product such as a CD or DVD player, connect optional IR emitters to the
IR Emitter Jacks
¶
and then place them over the IR sensor on the front
panel of the unit to be controlled in accordance with the emitter manufacturer’s
instructions.
Optional Step Seven: Remote IR Sensor Connection
If the source and control equipment is behind cabinet doors or dark glass and
you wish to have an optional IR sensor in the main listening room control those
products, connect that sensor (not included) to the
Local IR Input Terminals
§
. To make the installation easier, the black connector block may be removed
by grasping the top and bottom of the block and pulling it out toward you.
Reinstall it after the connections are made by simply pushing it back into the
socket.
When using an optional IR receiver (not supplied) the connections are as follows:
ABH 4 “Local IR”
Connection Point
Sensor Connection Point
V+
+12V
SIG
IR OUT
GND
GND
NOTE:
The STAT connection is not used in standard installations.
If you are not familiar with the use of external IR sensors in systems integration
applications, we strongly recommend that a trained custom installer perform the
installation.
Connections to a Non-A-BUS/
READY
Product
The ABH 4 may also be used to bring the benefits of A-BUS technology to
audio systems that are not A-BUS/
READY
. To do this, a few additional steps are
required to connect an audio feed and to install any required infrared emitters
that are used to control the source equipment. Although this installation is rela-
tively simple, you may wish to have it completed by a trained installer who is
familiar with A-BUS and audio/video systems integration.
Step One: Connect an Audio Source
Connect the audio outputs of the source that will be used to feed the A-BUS
modules by using a standard audio interconnect cable (not included) connecting
the
Audio Inputs
£
on the ABH 4 to the audio outputs of the source device.
The source may be the tape outputs of a stereo preamplifier or receiver, the tape
outputs or multiroom outputs of an audio/video receiver or surround processor,
or it may be a direct connection to a single source such as a CD player or tuner.
Step Two: Connect the A-BUS Modules
Connect the RJ-45 jacks on the Cat. 5 cabling that runs to the remote room
modules to the
A-BUS Outputs
•
on the ABH 4. Make certain that the con-
nector is wired in accordance with the standard TIA 568A color-coding. Connect
the A-BUS modules in the remote rooms to the cable in accordance with the
instructions for the module.
Step Three: Connect the AC Power Supply
Connect the AC Power Supply furnished with the ABH 4 to the
Power Input
™
. Plug the AC power cord into the socket on the Power Supply. Do not
connect the power cord to an AC outlet at this time.
Optional Step Four: Multiple ABH 4 Connections
If you are using more than one ABH 4 in a system, connect the
Expansion Out
Jack
∞
to the
Expansion In Jack
¢
on another ABH 4, using the RJ-45
jumper cable supplied with the second ABH 4. Then, follow steps two and three
as shown above.
NOTE:
The following steps provide additional options that extend the flexibility of
your A-BUS system. If you are not familiar with audio/video systems installations,
you may wish to have them completed by a properly trained installer.
