Energizing
Assuming AirAura is correctly rack mounted you may now energize it, noting that,
for long-term reliability reasons there is no power switch.
The AC line input voltage may be between 90 and 260 VAC, 50 or 60Hz. Power
consumption is under 100VA.
Aggressive AC input filtering is utilized at AirAura’s AC power input; however it is
always advisable to use some form of competent external surge protection
and/or an uninterruptible power supply (UPS), especially where AC power quality
is questionable, such as at a remote transmitter site.
Power conditioning, surge suppression, and even power backup devices are
wise investments when using sensitive modern electronic devices that, like
AirAura, use some type of internal computer.
The use of a UPS (uninterruptible power supply) is usually recommended and
will protect AirAura from short duration power interruptions which may otherwise
signal it to reboot when it sees the power glitch. When this happens there will be
a loss of audio for approximately 20 seconds.
Rear Panel Connections
All audio input and output, control, Ethernet, and power supply connections are
made via various connectors mounted on AirAura’s rear panel.
•
Nine XLR connectors are provided for analog and digital audio
input and output connections.
•
Four BNC connectors are provided for SCA in and TX (transmitter)
out connections.
•
Two RJ-45 connectors are provided for Ethernet connections.
Either of these connectors can be used to connect a Windows® PC
running the Vorsis AirAura GUI.
•
Two DB-9 connectors provide 8 GPI inputs (for selecting the first 8
presets) and four GPO outputs. The pin-out drawings in Appendix E
summarize wiring connections for these features.
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