Introduction
Thank you for choosing this Harman Kardon
®
product.
With your purchase of a new
you will be able to extend the flexibility of your home enter-
tainment system so that it delivers sound to another room
in your home Custom-designed for use exclusively with
Harman Kardon A-BUS
®
-equipped products and
hubs the
remote room and power most speakers – without
the need for
an additional amplifier – through one single Category 5/5e
cable
The keypad and built-in IR sensor compatible with the included
remote and Harman Kardon A
offer control over source selection and operation, local volume
and system power
T please take
a few minutes to read this owner’s manual. It contains important
information that will guide you through the correct and safe
installation of your If you do not have
experience installing in-wall electrical and telecommunications
components consult a qualified low-voltage contractor or
custom installer
If you have any questions about this product, its installation or
its operation, please contact your retailer or custom installer
They are your best source of product information.
Features
■
Simple connection to
equipped Harman Kardon products or ABH series hub
■
8-Key button control for source selection, transport control,
volume up/down and mute
■
Built-in IR sensor for control of compatible sources; remote
included
■
Decora
®
-style wall plate (not included) blends perfectly with
other in-wall electrical controls
■
Mounts in standard electrical junction boxes or plaster rings
■
Uses standard Category 5/5e cable
Important Safety and Installation Information
Low-voltage wiring systems must be properly installed to mini-
mize the possibility of accidental contact with hazardous power
and lighting wiring Never place audio or remote control wiring
near bare power wires or lightning rods antennas transformers
steam or hot water pipes or heating ducts Never run low-voltage
wire in any conduit, box, channel, duct or other enclosure
containing power or lighting circuits of any type In addition to
ensuring proper separation between any
the Category 5/5e cable used for A-BUS avoid running the
A-BUS cable in parallel to any Always maintain at
least the minimum separation between
cable or
(National Electrical Code) or any applicable local building codes
or regulations
Make sure to follow all instructions when preparing wiring for
use with the Failure to do so may result in a
potential safety hazard, including possible danger to persons
and/or equipment.
If you will be running the cable through a ventilation riser or
plenum,
use plenum-rated cable to comply with NEC and local
electrical codes Failure to do so may result in a potential fire
or safety hazard.
Always observe the appropriate safety codes for concealed
wiring Be extremely careful not to cut through or drill into
concealed wiring or pipes Make a small inspection opening
before cutting or drilling
Dust or dirt can cause special problems on wiring contacts
Be sure all contacts are clean, and that all parts are installed
correctly to protect them from dust and dirt.
Y
custom-designed for use with Harman Kardon A-BUS-equipped
products; it is also compatible with many other
systems Do not connect it to any other device
The
per the requirements of all applicable state and local building
codes as well as NEC requirements. Check with your local
authorities as needed to ensure that all wiring inside walls is
installed in compliance with the proper standards Failure to
do so may present a potential safety hazard.
If you have any doubt about your ability to work with electrical
and telecommunications wiring you are advised to hire a
licensed electrician or custom installer to install this
product.
Installation Planning
The
standard in-wall electrical components Y
selecting and properly installing an appropriate electrical junction
box or plaster ring Check the fit of the box or ring with the
AB 2 before installation.
Since the
avoid installing it near potential sources of interference including
plasma video displays dimmer bright sunlight,
and reflective surfaces such as mirrors or blank walls T
place the
IR signals
The
may be operated manually
any place in the room. The
other wall switches but it should NEVER be installed in the same
gang box as any product (e light switch or dimmer) where
AC line voltage is present.
Consider the distance from the
particularly when they are in-wall- or in-ceiling-mounted. Be certain
that there are no solid walls or load-bearing structures that
would prevent the speaker wires from reaching their location.
The cable used to connect the
receiver or hub should be Category 5/5e (or better). Be certain
that any local building or electrical codes mandating the use
of plenum or riser wiring are taken into account. The speaker
wiring should be in-wall-rated as required, and may not exceed
14 T you may use two pairs of CL-3-rated
in-wall wiring and run a single cable from the
locations One pair will be used to connect the first speaker
and the other will continue to the second speaker
NOTE: T the cable length
between an
should not exceed 1
Speaker Selection
The
have an efficiency rating of 88dB or greater and a minimum
speaker impedance of 6 ohms
What Is Included
• universal-head machine screws for mounting
• Remote control
Y
available in a variety of colors at your local hardware retailer
Y
Category 5/5e (or better) UTP (unshielded twisted pair) cable
and an RJ-45 modular plug The wiring scheme is the standard
TIA 568A configuration. The maximum length should not exceed
100 feet, to avoid degrading the signal. Further information on
the correct wiring configuration is provided in Step
Keypad Controls
Wall-Plate Screw Holes – Use these screw holes to attach
your Decora-style wall plate to the
Mounting Screw Slots – Use the supplied machine screws
to attach the
through these slots
Volume
⁄
/
¤
Buttons – Press these buttons to raise or
lower the volume of the speakers connected to the
T
T
tap the Power Off button again.
IR Sensor – This sensor receives signals from the included
remote control, the main or second-zone remote supplied with
some Harman Kardon multizone receivers or a source remote
and uses them internally or passes them on to other components
When a command is received, the Status LED blinks and the
AB 2 sounds a tone through the speakers connected to it in
acknowledgement of the command. The operating range of
the infrared system is up to 60 feet in ideal lighting conditions
and up to 15 feet in bright sunlight.
Status LED – The LED behind the red window indicates the
system’s status
• the AB 2 is not connected to a
powered
• the system is operational.
•
code from a compatible remote control.
AVR T
A-BUS-equipped Harman Kardon A/ V receiver’s (A
multiroom system and select the tuner as the multiroom
(remote-zone) source Each additional tap changes the tuner band.
Wall-Plate Screw Hole
Wall-Plate Screw Hole
Mounting Screw Slot
Mounting Screw Slot
Power Off/Mute
IR Sensor
Status LED
Skip Up/Down
Volume Up/Down
AVR T
CD Source Control
DVD Source Control
MP3 Source Control
Input-Cable Connection Block – Using standard IDC punch-
down tools connect the Category 5/5e cable linking the AB 2
to the receiver or hub to this connection block in accordance
with the color code printed on the circuit board.
Output-Level TUse these trim pots prior to final instal-
lation to match the output level of the
SpeakerThe wire used to connect the
AB 2 to your speakers is connected to this terminal block.
Insert the wire in accordance with the color coding shown and
then tighten the screw The maximum wire size is 14
Installation and Connection
IMPORT
• Before beginning the installation process, make certain
that all electronic products in the system are turned off
and disconnected from their
This avoids the possibility of accidental activation,
which could possibly damage the equipment or cause
personal injury Do not turn on the equipment until
instructed to do so.
• Be certain to observe all appropria
when installing any wiring, inc but not limited to,
the use of eye protection when required, and a
to the required distances between low-voltage wiring
and high-voltage AC mains wiring.
Step One: Run a Ca
or hub location to the module.
Run a splice-free Category 5/5e cable from the location where
the
A-BUS-equipped product or hub is placed. Leave sufficient
wire at each end for ease of installation. Any extra wire may
be trimmed back during the installation. Y
access to the rear of the
but before the module is secured into the wall box.
Step
receiver end of the system.
The connection and cable termination at the receiver or hub
end of the installation is a standard RJ-45 connector using the
TIA 568A configuration.
Connect an RJ-45 plug to the end of the wire as follows
Looking at the connector with its clip on top and the wires
coming out of the connector
toward you, numbered from right
to left, the typical pin colors are as follows:
Pin Striped Signal
1 Green and Left Channel Ground
2 Green Left
3 Orange and Right Channel Ground
4 Blue IR
5 Blue Status
6 Orange Right
7 Brown Ground
8 Brown +24V DC
Note that one wire in each pair is always a solid color and the
other is either white or striped. Make sure that the twisted pairs
of wires consist of those attached to pins 1 and 2, pins 3 and
6, pins 4 and 5, and pins 7 and 8.
Press and hold this button to select
multiroom source If a compatible iPod (not included) is docked in
The Bridge it will begin playing The Bridge is a Harman Kardon
accessory that is sold separately It may be connected to a
The Bridge-ready Harman Kardon product.
CD Source Control – When the
Harman Kardon ABH 4000 or other compatible multizone
A-BUS hub and when a Harman Kardon CD player is connected
to Source 2 of the hub tap this button to select the CD player
as the source and begin play (if the player was not already
playing). T If audio is not
heard within a few moments of the first tap tap the button
again, as the CD player may have already been playing and
would have interpreted the command as a Pause
If this button was previously tapped to start play
the button to skip to the next disc (if the player is a multidisc unit).
DVD Source Control – When the
Ha
hu a when a Harman Kardon DVD player is connected to
Source 3 of the hub tap this button to select the DVD player
as the source and begin play
If this button was previously tapped to select the DVD player
as the source press and hold the button to begin play
MP3 Source Control – When the
Harman Kardon ABH 4000 or other compatible multizone
A-BUS hub and when an MP3 player is connected to Source 4
of the hub tap or press and hold this button to select the MP3
player as the source
Power Off/Mute – T T
again to resume hearing audio Muting the
the source device which will continue playing
If the
the press and hold this
button to turn off the A If any other
source has been selected and the
to a hub press and hold this button to power off the hub
Skip Up/Down – T and press and hold it
to skip down. The precise behavior depends on the current source:
• AVR T Preset up or down; no effect on
• CD: T
• DVD: Next or previous chapter (Har
• MP3: No effect
NOTE: When the
Harman Kardon you may control sources connected
to the pointing the
AB 2’
Rear
Speaker-T
Output-Level T
Input-Cable
Connection Block
AB2 Owner’s Manual 11/18/08 1:01 PM Page 1
