Niles SI-1230 Installation & Operation Manual page 16

Red "Power" LED confirms the
amplifier is connected to a live AC
power outlet and that the front
panel master power switch is on.
Front panel "Master
Power" switch turns off
the entire amplifier,
including the auto turn-
on circuitr
Main Bus Inputs enable you
to route a stereo line level
source to the BusMatrix
of the SI-1230.
"Turn-On" Mode Switch
3.5 mm Jack for
12v DC Control Input.
15
y.
TM
3.5 mm Jack for
12v DC Control Output.
Red "Active" LED lights
when the amplifier circuitry
has been turned on by the
Turn-On circuits.
Cascade outputs of the main
bus input enable you to daisy
chain multiple amplifiers.
Bridging switch
inputs and leve