- 6 -
WARNING
Safety First!
Calculate the maximum possible current in each power wire and
common wire. Observe all electrical codes dictating the
maximum current allowed for each wire size. If the current goes
above the maximum ratings, the wiring could overheat, causing
serious damage to your equipment.
You should also pay attention to the following items:
•
Use separate paths to route wiring for power and devices. If power
wiring and device wiring paths must cross, make sure the wires are
perpendicular at the intersection point.
NOTE
Do not run signal or communications wiring and power wiring in
the same wire conduit. To avoid interference, wires with different
signal characteristics should be routed separately.
•
You can use the type of signal transmitted through a wire to
determine which wires should be kept separate. The rule of thumb is
that wiring with similar electrical characteristics can be bundled
together.
•
Keep input wiring and output wiring separate.
•
It is strongly advised that you label wiring to all devices in the system
when necessary.
ATTENTION
This product is intended to be supplied by a Listed Power Unit
marked “Class 2”, “LPS” or “Limited Power Source” and rated
O/P: 12 to 48 VDC, 0.121 to 0.494 A
Make sure the external power adapter (includes power cords and
plug assemblies) provided with the unit is certified and suitable
for use in your country.
Before connecting the AWK to the DC power inputs, make sure
that the DC power source voltage is stable.
Grounding the Moxa AWK-3121
Grounding and wire routing help limit the effects of noise due to
electromagnetic interference (EMI). Run the ground connection from the
ground screw to the grounding surface prior to connecting devices.
ATTENTION
This product is intended to be mounted on a well-grounded
mounting surface, such as a metal panel. There must be no
electrical potential difference between any two grounding points;
otherwise, there is a risk that it would damage the device.
