15
Reliability Considerations
Since the commentary microphones and communications are typically provided by
this system, reliability is of primary concern. The ADX-series products are designed
with highest-quality components and conservative ratings so as to be as reliable as
possible.
In addition, after manufacture, the ADX products undergo an extensive burn-in
process which includes power and thermal cycling to attempt to precipitate out any
early-life failures.
Even with these precautions failures are not impossible, and in addition there are
other components to the system such as Ethernet switches which must also be
considered in evaluating the overall reliability question.
Here are some thoughts on insuring a reliable on-air system:
Provide a spare announce box and headset. This practice has been going
on for decades with analog systems, and it's still a good idea. It protects
against failure of the ADX-120 and the headset.
Use the ADX-8000 to provide power for the ADX-120s. This unit contains
redundant power supplies and will provide highly-reliable power, even in the
event of the failure of one of the supplies.
Insure a reliable AC power source in the remote location for the ADX units
and for the Ethernet switch. If there is any question about the reliability of
the AC supply you might consider using a small UPS power supply to provide
battery backup. A small 500 watt unit intended for personal computer use
will provide an hour or more of operation in the event of power failure.
Use reliable Ethernet hardware such as switches, fiber SFPs, etc. Burn in
new switches for a few days before putting them on the air. Keep all
Ethernet cables and fiber in good condition.
Many switches have two or more fiber ports available. Use redundant fibers,
either by using link aggregation, or the ADX-8000's A/B mode.
Although the Dante audio data may share a network with other Ethernet
traffic, we suggest keeping the critical audio data on its own separate
network in order to avoid unexpected and unpredictable data loads and
possible bandwidth loss.
Summary of Contents for ADX-120
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