4
Jumper Settings
Source Mode
AB-134 (Bottom View)
Status Active
Volume Level
Pin 1 is to the right
(arrow is pointing at pin 1)
Pin 3 is to the left
(Jumper is covering Pins 2 & 3)
Jumper settings determine how the AB-134 will react under various
circumstances. These jumpers should be set to the desired configuration
before the AB-134 is installed. If you need to make changes to the jumper
settings, the AB-134 MUST BE DISCONNECTED from the system first.
- This jumper sets the starting volume of the keypad will
be when it is turned on. If the jumper is on pins 1 & 2, the volume will
always be set at the default level when the AB-134 is turned on. If the
jumper is on pins 2 & 3, the volume will be at the same level as it was
before the AB-134 was turned off.
is active when the zone is on and audio is present. Status will go
dormant when audio is not present at the source.
- This jumper determines what happens when the status
becomes active. Typically, when status becomes dormant, Channel Vision
amplified keypads go into a ‘sleep’ mode which mutes the amplified
keypad. If the jumper is on pins 1 & 2 when status becomes active, the
AB-134 will remain off until the power button is pressed. If the jumper is
on pins 2 & 3 when the status becomes active, the AB-134 will return to its
previous state (either on or off).
- This jumper determines if the AB-134 will be used as a
multi-source keypad or a single-source keypad. If you are using the
keypad in a single source system, set the jumper on pins 1 & 2. If you are
using the keypad in a multi-source system, set the jumper on pins 2 & 3.
Jumper setting functions explained:
Volume Preset
Status
Status Active
Source Mode
Jumper Function
Volume Level
Status Active
Single-Source
Default volume level
Previous volume level
Off until Pwr is pressed
Jumper on Pins 1 & 2 Jumper on Pins 2 & 3
Previous state
Multi-Source
Source Mode
9
Adding more power
Using the A0240 with the A0302
The A0302 is the perfect complement to Channel Vision’s A0240 amplifier. It
can utilize the Amp-Link connection, which provides a clean way to interrupt
the speaker-level audio from a low-power system and output 40 Watts per
channel to the speakers. This is the perfect way to add power to low-power
distributed audio systems.
B-Speakers powered by
A0240 40Watt Amplifier
A-Speakers powered by
AB-134 keypad
Set switch to
“SPKRS IN”
AB-134 keypad
(rear view)
Place switch in L/R mode.
Speaker level audio is
converted to line level to drive
the amp. Amplified audio is
returned to the A0302 through
the Amp-Link cable.
A0240
Speaker
Level
Output
Line
Level
Audio
Input
