Installation guide

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You should also pay attention to the following:

y 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.

y 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.

y Keep input wiring and output wiring separated.

y It is strongly advised that you label wiring to all devices in the system when

necessary.

Grounding the VPort 351

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 to a well-grounded

mounting surface such as a metal panel.

Wiring the Redundant Power Inputs

The VPort 351 has two power inputs, labeled PWR1 and PWR2, on the 6-pin

and 8-pin terminal block connectors. Top and front views of the terminal block

connectors are shown in the following figures.

PWR1

PWR2

PWR1

PWR2

V1- V1+ V2- V2+

STEP 1: Insert the negative/positive

DC or AC wires into the V-/V+

terminals.

STEP 2: To keep the DC or AC 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, which is

located on VPort 351’s top panel.

ATTENTION

The power for this product is intended to be supplied by a Listed

Power Unit, with output marked LPS, and rated to deliver 12 to 32

VDC at a maximum of 740 mA, or 18 to 30 VAC at a maximum of

890 mA.