Moxa IA3341-LX [15/20] Wiring requirements

IA3341 Hardware User's Manual Hardware Connection Description

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Wiring Requirements

In this section, we describe how to connect various devices to the embedded computer. You should heed the

following common safety precautions before proceeding with the installation of any electronic device:

• 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 communication 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 that shares similar electrical characteristics can be bundled together.

• Keep input wiring and output wiring separate.

• When necessary, it is strongly advised that you label wiring to all devices in the system.

ATTENTION

Safety First!

Be sure to disconnect the power cord before doing installations and/or wiring.

Electrical Current Caution!

Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes

dictating the maximum current allowable for each wire size.

If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your

equipment.

Temperature Caution!

Be careful when handling the unit. When the unit is plugged in, the internal components generate heat, and

consequently the outer casing may feel hot to the touch.

Connecting the Power

The IA3341 has a 3-pin terminal block for a 12 to 48 VDC power input.

The following figures show how the power input interface connects to external power sources. If the power is

properly supplied, the Power LED will light up. The Ready LED will glow a solid green color when the operating

system is ready (it may take 30 to 60 seconds for the operating system to boot up).

Terminal Block

12-48 VDC

Power Input

ATTENTION

The power for this product is intended to be supplied by a Listed Power Supply Unit that is rated to deliver 12

to 48 VDC at a minimum of 1200 mA for 12 VDC, and 260 mA for 48 VDC.

Grounding the Unit

Grounding and wire routing helps 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.