Connecting the hardware, Wiring requirements, Connecting the power – Moxa Technologies NPort 5400 User Manual
Page 11: Grounding nport 5400, Wiring requirements -3, Connecting the power -3, Grounding nport 5400 -3
NPort 5400 Series User’s Manual
Getting Started
2-3
Connecting the Hardware
This section describes how to connect NPort 5400 to serial devices for first time testing purposes.
We cover Wiring Requirements, Connecting the Power, Grounding NPort 5400 Series,
Connecting to the Network, Connecting to a Serial Device, and LED Indicators.
Wiring Requirements
ATTENTION
Safety First!
Be sure to disconnect the power cord before installing and/or wiring your NPort 5400 Series.
Wiring 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!
Please take care when handling NPort 5400. When plugged in, NPort 5420/5430/5430I’s internal
components generate heat, and consequently the casing may feel hot to the touch.
You should also heed the following:
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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.
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.
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Keep input wiring and output wiring separate.
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Where necessary, it is strongly advised that you label wiring to all devices in the system.
Connecting the Power
Connect the 12-48 VDC power line with NPort 5400’s terminal block. If the power is properly
supplied, the “Ready” LED will show a solid red color until the system is ready, at which time the
“Ready” LED will change to a green color.
Grounding NPort 5400
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.