Aviom A-16CS - Manual (Page 25)

15
Power Supplies
Your Aviom product uses a DC power supply that has a two-prong
power cord. The prongs on the power supply are identical, meaning
that there is no need to orient the plug in a specific direction in
the power outlet. Some products with two-prong power cords have
polarized plugs that can only be inserted into an electrical outlet one
way.
The power supply that ships with your Aviom product is a universal
switching type. It is capable of working with voltages from 90 to
240 volts AC. This means that a separate power supply is not needed
to use the product with the power systems found in most countries.
You should always use the power supply that shipped with your
Aviom product. When travelling, you may need plug adapters to use
the power supply with the AC outlet plug shape variations in use
throughout the world.
Should you need to replace the power supply that came with your
product, we recommend using only a power supply that meets the
following specifications.
Type: Switching
Input Voltage: 90-240 volts
50/60Hz
30VA
Output: 24Vdc 0.5A
Polarity Outer = negative; Inner = positive
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Power Supply Polarity
Note that polarity of the plug found on the DC power supply needs to
match that of the original power supply that came with your Aviom
equipment. Aviom products use a center positive power supply.
The outer contact is negative, the inner contact is positive. (See the
diagram above.)