Operating instructions
Radio Systems Millenium-D Livewire Console
Page 15
Remote Control - “GPIO” Interface
Overview
The Millenium Axia internal console node features a GPIO connector with 16 inputs and 16 outputs. Via programming these
inputs and outputs can be assigned to any network audio source. In this way, the Millenium Livewire console channel can
exercise start/stop control or a device can turn a Millenium console channel on and off when selected as a source on the LCD
display above that fader.
Physical Connectivity
All GPIO inputs and outputs are located on the on-board RJ-21 50-pin male connector. Inputs are opto-isolated and are acti-
vated by being “pulled low” (connected to ground). Outputs are open collector and provide a path to ground when activated.
Consult the Illustration on the following page for RJ-21 pin-outs and wiring illustrations
Assigning GPIO via software set-up screens
Source Conguration
An existing audio source connected to the Millenium console or any Livewire node must rst be set for GPIO
control. On the source prole screen, select BOTH the appropriate GPIO prole and GPIO enable radio button.
The GPIO source prole automatically sets up to 5 GPIO input and output functions for each source. These functions
are listed in Illustration XXX on the following page.
GPIO Channel assignment
The Millenium console provided 8 GPIO “ports”, thus allowing up to 8 devices (Livewire audio sources) to have GPIO
connectivity. These devices must be assigned as GPIO channel 1-8 on the Livewire GPIO port assignment
GPIO Pin Mapping
Source GPIO inputs and outputs (up to 5 of each for each source) must be “mapped” to the physical pins on the
GPIO connector. This is accomplished on the GPIO “Pin Mapping” page accessed by clicking the “program pins” link
alongside each Livewire GPIO port channel selection. For each active port channel assign an input or output GPIO
pin by clicking the adjacent radio box.
For example:
If GPIO channel #1 is assigned to a CD player and that CD player’s start control is wired to GPIO port physi-
cal output pin#1 and the CD player’s EOM relay is wired to GPIO port physical input #1.
Mapping Livewire port 1 / output pin#1 to GPIO output pin#1 and selecting this CD player on a Livewire
console channel will cause the CD player to start when the CD’s console channel is turned on.
Mapping Livewire port 1 / input pin#1 to GPIO input pin#1 and selecting this CD player on a Livewire
console channel will cause the console channel to turn off when the CD’s EOM relay res
Livewire Console Remote Proles
There are 6 available precongured remote proles. You must choose the appropriate prole when conguring
Livewire Remote Control. The proles available are below and are detailed on the following pages.
Operator
Producer
Control Room Guest
Studio Guest
Line
Computer Player