Moxa IMC-21GA-LX-SC [5/12] Grounding the imc 21ga

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• 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 that shares similar electrical characteristics can be

bundled together.

• Keep input wiring and output wiring separated.

• We strongly advise that you label wiring to all devices in the system.

Grounding the IMC-21GA

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 pro

duct is intended to be mounted to a well-grounded

mounting surface such as a metal panel.

Wiring the Power Inputs

The 4-contact terminal block connector on the IMC-21GA’s top panel is

used for the IMC-21GA’s two DC inputs. Top and front views of one of the

terminal block connectors are shown here.

STEP 1:

Insert the negative/positive DC wires

into the V

-/V+ terminals.

STEP 2: To keep the DC wires from pulling loose,

use a small flat

blade screwdriver to tighten the

wire

-clamp screws on the front of the terminal

block connector.

STEP 3:

Insert the plastic terminal block

connector prongs into the terminal block receptor

located on IMC

-21GA’s top panel.

Redundant Power Inputs

Both power inputs can be connected simultaneously to live DC power

sources. If one power source fails, the other live source acts as a backup,

and automatically supplies all of the IMC-21GA’s power needs.