Moxa Technologies EtherDevice Guide d'installation télécharger pdf (Page 6)

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You should also pay attention to the following items:

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 with

similar electrical characteristics can be bundled together.

y Keep input wiring and output wiring separated.

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

when necessary.

Grounding Moxa EtherDevice Switch

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 Alarm Contact

The Alarm Contact consists of the two middle contacts of the terminal block on

the EDS’s top panel. You may refer to the next section for detailed instructions

on how to connect the wires to the terminal block connector, and how to attach

the terminal block connector to the terminal block receptor.

In this section, we explain the meaning of the two contacts used to connect the

Alarm Contact.

FAULT

Top View

Front View

FAULT: The two middle contacts of the

6-contact terminal block connector are used to

detect both power faults and port faults. The

two wires attached to the Fault contacts form

an open circuit when:

1. EDS has lost power from one of the DC

power inputs.

2. The PORT ALARM DIP switch for one of

the ports is set to ON, but the port is not

connected properly.

If neither of these two conditions is satisfied,

the Fault circuit will be closed.

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Moxa Technologies EtherDevice Guide d'installation Page 6

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