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ABX-88
Multi-Source Hub
We hope you enjoy your A-BUS system. Your A-BUS compo-
nent has been designed to give high quality sound and be
simple and functional to operate. All A-BUS products bearing
the A-BUS logo are made to the A-BUS Standard, so when
you connect an A-BUS input device, Hub or Volume Control
Module they are compatible with each other. Some functions
on some manufacturer's products may not work with other manufacturer's products; however,
most features will be interoperable. All A-BUS components are simple to service or upgrade,
so upgrading your system with components that offer improved features should be easy. The
A-BUS Multi-Source Hub is the core of your A-BUS system. It is the input connection point for
the source components. It also distributes power and sound to each room Volume Control
Module. It also repeats infrared (IR) commands to the source components. Multiple Hubs may
be used to expand the system to more than eight rooms.
The A-BUS ABX-88 4 source 4 zone (x2) Multi-Source Hub with expansion
Audio input [1] [2]
- There are four stereo line-level source inputs [2]. Each input has
individual level adjustments [1] (left and right).
Trigger [3]
- The trigger is activated when any part of the system is on; its output is 12 volts at 300 mA.
Emitter Ports [5] [6]
- Each source input has its routed emitter port [5], if more than one component of
the same type is used the Remote Control commands will not be confused. Eg. 2 tuners. There is also a
common emitter port [7] to control components that are common to all zones.
Function
System Off
Welcome to A-BUS
Room 1 ON (zone1)
Room 1 OFF (zone1)
Room 1 ON (zone1)
Other rooms (zone 1)
Room 2 ON (zone1)
Zone 2 ON
Volume
Select Input 1-4
Room Off
System Off
Power Supply LEDs
ABO-45 Keypad Volume Control Module
The ABO-45 Keypad Volume Control Module was designed to work
with intelligent A-BUS Multi-Source Hubs using standard A-BUS
commands. The ABO-45 provides the following functions:
Volume Up/Down
Input selection Up/Down
Room Off
System Off
Infrared repeating
Additional features:
Status indication
Infrared talkback
Backlighting (adjustable)
Volume level change identification
ABO-45 Volume Control Module
N/A
Touch any key in a zone
Module backlighting turns on
Input LED indicates input
(same as last selected)
Volume (low level)
Tap centre OFF button
Status (OFF button) remains on
Input indicated
Tap volume UP/DOWN
Backlighting ON
Volume (same as previous level)
Status indicator ON
(Off Button)
Input indicated
Touch volume Up or Down
Volume at low level
Tap button
Volume (low level) unless previously on
Touch and hold either Up or Down button
Input indicators ripple right for is and left
for down
Tap left or right buttons to change input
Four indicator lights
Tap centre button
Turns off power module
Other rooms remain on
Press centre button for three seconds
Turns all rooms and zones off
Operation Chart
Multi-Source Hub
System Off
12v trigger ON to switch on source
components
System On status trigger turns on
N/A
Hub already on
If system is already on volume
level will return to previous setting
N/A
N/A
N/A
Changes input for that zone only (A
& B outputs)
N/A
Hub OFF
Status light OFF (Green)
Indicates power status (Red)
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