Attach The Power And Relay Connector To The Switch; Verifying Switch Operation B - Cisco IE 3000 Hardware Installation Manual

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Appendix B

Installation In a Hazardous Environment

Attach the Power and Relay Connector to the Switch

Follow these steps to attach the power and relay connectors to the front panel of the switch.

Step 1

Insert the power and relay connector into the Pwr A receptacle on the switch front panel. See

Figure

When you connect or disconnect the power and relay connector with power applied, an electrical arc

Warning

can occur. This could cause an explosion in hazardous area installations. Be sure that power is

removed from the switch and alarm circuit. Be sure that power cannot be accidentally turned on or

verify that the area is nonhazardous before proceeding.

Failure to securely tighten the power and relay connector captive screws can result in an electrical

arc if the connector is accidentally removed. Statement 1058

Figure B-17

Use a ratcheting torque flathead screwdriver to tighten the captive screws on the sides of the power and

Step 2

relay connector.

When you are testing the switch, one power source is sufficient. If you are installing the switch and are

using a second power source, repeat this procedure for the second power and relay connector (Pwr B),

which installs just below the primary power connector (Pwr A).

When you are installing the switch, secure the wires coming from the power and relay connector so that

they cannot be disturbed by casual contact. For example, use tie wraps to secure the wires to the rack.

B-17.

Connecting the Power and Relay Connector to the Switch

Power source A connector

Pwr A receptacle

Pwr B receptacle

Power source B connector

Cisco IE 3000 Switch Hardware Installation Guide

Verifying Switch Operation

B-25

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