Moxa EM-1220-LX DEVELOPMENT KIT Manual de usuario descargar pdf (Pagina 18)

EM-1220 Hardware User’s Manual EM-1220-DK Functionality

Wiring Requirements

This section describes how to connect the EM-1220 Development Kit to serial devices.

You should heed the following common safety precautions before proceeding with the installation

of any electronic device:

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 communication wiring and power wiring in the same wire conduit.

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

y 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 separate.

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

Be sure to disconnect the power cord before installing and/or wiring your EM-1220 Development

Kit.

ATTENTION

Safety First!

Be sure to disconnect the power cord before installing and/or wiring your EM-1220

Development Kit.

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 EM-1220 Development Kit. When plugged in, the EM-1220

Development Kit’s internal components generate heat, and consequently the outer casing may

feel hot to the touch.

Connecting the Power

You may use the 3-pin terminal block for connecting the power. The power input range of the

EM-1220-DK is from 12 to 48 VDC. If the power is properly supplied, the “Ready” LED will

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

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Moxa EM-1220-LX DEVELOPMENT KIT Manual de usuario Pagina 18