Installation
13
ALR-AMP-8 Alero 8 Zone Power Amplifier
Pin 9 - On Signal Output / 12V Trigger
On Signal Output
Pin 9
on the 10-pin I/O port provides a continuous 12VDC when the Alero exits Standby Mode for On. When the Alero
is in Standby mode, Pin 9 falls to zero. When connected to an external Controller, this pin allows the Controller to be
aware of the On/Off state of the Alero.
For Signal Output, Pin 9 connects to an I/O pin on an external controller such as a NetLinx Central Controller (FIG. 16):
12V Trigger
Pin 9
also functions as a 12V on/off output trigger. In this case, it can be used to turn on or off other amplifiers, when
there are multiple Alero system in an installation.
As a 12V Trigger, Pin 9 connects to
Pin 3 (12V Trigger Input)
on a downstream Alero (FIG. 17):
See page 16 for a NetLinx code example that illustrates configuring the port (on an
NI-3100 NetLinx Central Controller) to properly monitor inputs from the On Signal,
OC and Thermal functions.
FIG. 16
Pin 9 Example Connection - On Signal Output Connections
NetLinx Central Controller
ALR-AMP-8
Pin 10 = Status GND
Pin 9 = On Signal (Out)
Refer to AMX Tech Note #777 for details regarding configuring the the I/O ports on a
NetLinx Master to accept a voltage input.
FIG. 17
Example - Thermal and OC Indicator Connections
I/O port on downstream ALR-AMP-8
Pin 3 = 12V Trigger In
Pin 9 = On Signal (Out)
I/O port on first ALR-AMP-8
Pin 10 = Status GND
