Instruction manual

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)