Moxa V2426-XPE [19/48] Wiring requirements

V2406/2422/2426 Hardware Manual Hardware Connection Description

3-4

Wiring Requirements

This section describes how to connect serial devices to the embedded computer.

You should read and follow these 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 together with power wiring in the same wire conduit. To

avoid interference, wires with different signal characteristics should be routed separately.

• 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.

• It is advisable to label the wiring to all devices in the system.

ATTENTION

Safety First!

Be sure to disconnect the power cord before installing and/or wiring your V2406/2422/2426.

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!

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 PC’s power source should be provided by a UL listed class 2 or “Limited Power Source” (LPS), with external

adaptor output rated 12 to 48 VDC (9 to 36 VDC for V2422) , . If the power is supplied properly, the “Ready”

LED will glow a solid green after a 25 to 30 second delay.

Grounding the Unit

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 the power. Please note

these products are intended to be mounted to a well-grounded mounting surface, such as a metal panel

V2406/V2426

SG: The Shielded Ground (sometimes called Protected Ground) contact is the central pin of

the power input connector

Connect the SG wire to an appropriate grounded metal surface.

V2422

SG: The Shielded Ground (sometimes called Protected Ground) contact is the

left-most

of the power input connector

. Connect the SG wire to an appropriate grounded metal

surface.