Installation
12
ALR-AMP-8 Alero 8 Zone Power Amplifier
Pin 5 - Local/Trigger GND
Pin 5
on the 10-pin I/O port provides a ground connection for the 3-5V Logic Level Trigger. Pin 5 connects to the GND
pin of an I/O port on an external controller, such as a NetLinx Central Controller.
Pin 6 - 3-5V Logic Level Trigger
The Alero can be also turned On or placed in Standby mode externally via a 3-5V Logic Level trigger signal. A 3-5V
trigger input is accessible via
Pin 6
on the 10-pin I/O port.
3-5V Trigger Switch
The
3-5V Trigger Switch
(FIG. 14) has two selections;
High
and
Off
.
When the 3-5V Trigger Switch is set to
High
, the amplifier will turn on when AC mains is turned on, For example, the
3-5V Trigger switch could be set to
High
if the amplifier needs to be forced on without having signal sense or external
trigger signals.
Pins 7 & 8 - Thermal Overload and OC (Overcurrent) Monitor Indicators
The
Thermal Overload Indicator (OUT)
signal can be used to send a Thermal message from the Alero to an external
controller (such as NetLinx Central Controller), if desired.
The
OC
(
Overcurrent) Monitor Indicator
(OUT) signal can be used to send an OC message from the Alero to an external
controller if desired.
A Thermal Overload Indicator signal is output on
Pin 7
on the 10-pin I/O port. This pin connects to an I/O pin
on an external controller such as a NetLinx Central Controller (see FIG. 15).
An Overcurrent Monitor Indicator signal is output on
Pin 8
on the 10-pin I/O port. This pin connects to an
I/O pin on an external controller such as a NetLinx Central Controller (see FIG. 15).
Pin 3 and Pin 4 are hardwired together. Therefore, when a trigger is applied to pin 3 it
will also be present at pin 4. Pin 4 will be high only if a signal is applied to Pin 3.
FIG. 14
3-5V Trigger Switch
3-5V Trigger Switch (High/Off)
The THERMAL and OC/CLIP LEDs on the front panel (see FIG. 1 on page 1) always
light to indicate these conditions.
FIG. 15
Example - Thermal and OC Indicator Connections
NetLinx Central Controller
ALR-AMP-8
Pin 8 = OC (Overcurrent) Monitor Indicator
Pin 7 = Thermal Overload Monitor Indicator
Pin 10 = GND
