Allied-telesis AT-MCR12 Manual de usuario descargar pdf (Pagina 40)

Chapter 2: Installation

Wiring and Powering on a DC-Powered Chassis

To wire and power on a DC-powered chassis, perform the following

procedure:

1. Identify the negative, frame ground, and positive terminals on the

terminal block, as shown in Figure 16.

Figure 16. Locating the Terminals on the DC Terminal Block

2. Before you strip and attach the wires, review the following safety

precautions:

Warning: As a safety precaution, install a circuit breaker with a

minimum value of 15 Amps between the equipment and the DC

power source.

Always connect the wires to the LAN equipment first before you

connect the wires to the circuit breaker. Do not work with HOT

feeds to avoid the danger of physical injury from electrical shock.

Always be sure that the circuit breaker is in the OFF position

before connecting the wires to the breaker.

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Warning: Only trained and qualified personnel are allowed to

install or replace this equipment.

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E14

Positive

Negative

Ground

This system works with positive grounded or negative grounded

DC systems.

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E13

Warning: For centralized DC power connection, install only in a

restricted access area.

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E23

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Allied-telesis AT-MCR12 Manual de usuario Pagina 40