Installation
10
ALR-AMP-8 Alero 8 Zone Power Amplifier
See Also:
Connecting Input Devices in Bridge Mode
on page 7.
I/O (Control Input) Port
The 10-pin captive-wire
I/O
(
Control Input) port
is for external control and status indication (FIG. 10).
The following table lists the pinouts for the I/O port
The function of each pin on the I/O port is described below.
Pin 1 - Signal Sense
Pin 1 on the 10-pin I/O port is used for single-ended Signal Sense input (+). This pin detects an input signal from a
source device when the source device is active.
Pin 1 (Signal Sense +)
connects to one of the source device’s input
cables to provide a signal to the Alero when the source device is active (FIG. 11):.
FIG. 10
10-pin I/O (Control Input) Port with External Signal Sense switch
10-Pin I/O Port - Pinout Information
PIN
Function
Description
Type
Page Reference
1
Signal Sense +
Signal Sense
Input
page 10
2
Signal GND
Single Ended Signal GND
GND
page 10
3
12V Trigger In
12V Trigger Input
Input
page 11
4
Trigger Loop Out
Trigger Loop Out
Output
page 11
5
GND
Logic / Trigger GND
GND
page 12
6
3-5V Trigger
Logic Level Trigger
Input
page 12
7
Thermal
Thermal Overload Indicator
Output
page 12
8
OC
Overcurrent Monitor Indicator
Output
page 12
9
On signal
On Signal Output
Output
page 13
10
GND
Status GND
GND
page 14
FIG. 11
PIN 1 Example - Signal Sense Connection (Unbalanced)
Source Device
Pin 1 = Signal Sense +
Stereo Inputs
ALR-AMP-8
Pin 2 = Signal GND
Pin 5 = GND
I/O Port
Ring = GND
Plug = +
(Stereo Outputs)
