Savant IP Audio Deployment Guide
Copyright © 2017 Savant System, LLC
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4.4.
GPIO
The PAV-SIPA125 and PAV-AOM8C have a GPIO that use the
same wiring. General Purpose Input/Outputs (GPIO) are binary
I/O ports used on Savant controllers to trigger an action within
the system. Events can control a device, such as turning on an
amplifier (output) or detecting a state change for a device (input)
to perform a workflow. Pin 2 is used for input or output depending
on configuration.
GPIO Pull Down Resistor (PD) Usage
GPIO pins are configured as inputs and are pulled high to 12V while the host is booting up. To make the GPIO signal low during a host reboot
and/or a power cycle, attach the GPIO 1 pin to the PD pin. The PD pin is a 1K ohm pull down resistor (to signal ground) which keeps the GPIO
output below 0.8V during processor boot times.
4.5.
Relay
Relay ports are used when a device is controlled via a normally
open (NO) or normally closed (NC) relay.
4.6.
Network Connection
The Savant IP Audio devices use a standard RJ-45 port complying with IEEE 802.3 Ethernet standards. This port also supports Audio Video
Bridging (AVB) or Time Sensitive Networking (TSN) over Ethernet (AVB/TSN, IEEE 802.1). Up to sixteen IP Audio devices can be connected using
AVB/TSN compliant switching. For more information on this, see the
Expansion
section.
4.7.
AC Power Connection
SURGE PROTECTION!
Use a surge-protected circuit for all components and power supplies requiring 100/240V (AC 50/60 Hz) source power.
ELECTRICAL DISCONNECT!
The source power outlet and power supply input power sockets should be easily accessible to disconnect power in the event of an electrical hazard or
malfunction.
Power Management Recommendations
Savant recommends a pure sine wave uninterruptible power supply (UPS) with the ability to shut down the Savant Host before the battery runs out
of power. Never remove power from the Savant devices before shutting them down. See
Appendix E
for more information.
