Step 2: Hardware Setup Procedure for the Catalyst 2955 Switch

Step 1:   Cisco SMB Support Assistant Site Survey     Step 2:  Hardware Setup Procedure for the Catalyst 2955 Switch                       Introduction                       Requirements                       Install the Switch                            Install the Power and Relay Connector                            Connect the Switch to the Power Converter                            Connect the Power Cord                            Apply Power                            Verify Switch Operation                       Next Step                       Troubleshoot the Procedure                       Related Information     Step 3:   Download and Install Cisco Network Assistant     Step 4:   Configure the Catalyst Switch with Cisco Network Assistant

Download PDF   Step 2: Hardware Setup Procedure for the Catalyst 2955 Switch    Set Up a Catalyst Switch

Introduction

This document describes how to install a standalone Catalyst 2955 switch. The Catalyst 2955 switch is designed to withstand extremes in temperature, vibration, and shock so that the switch can be deployed in an industrial environment. The switch can be mounted on a DIN rail in an industrial enclosure as well as in a standard 19-inch rack.

The Catalyst 2955 switch can be installed to use AC or DC power. This procedure describes an installation with an AC/DC power converter (sold separately). This procedure describes installation in a nonhazardous location.

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Requirements

To perform this procedure, you will need these items:

• You must have completed the Site Survey, which includes the LAN Addressing worksheet and Switch Port Assignments worksheet.

• Switch components and tools:

  • Switch

  • Power converter

  • Power and relay connector

  • Ferrite

  • Wire stripping tools for 10, 12, and 18-g wire

  • Twisted-pair copper appliance wire (UL rated, style 1007 or 1569)

  • Wire cutters

  • Phillips screw driver

  • Ratcheting torque flathead screwdriver

  • Power cord

  • Access to AC power

• Review Regulatory Compliance and Safety Information for the Catalyst 2950 Switch

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Install the Switch

Install the Power and Relay Connector

The power and relay connector allows you to attach DC input wires to the switch and connect them to the power converter. Follow these steps to install the power and relay connector:

1. Locate the power and relay connector that came with your switch.

   

2. Identify the positive and return feed positions for the power and relay connector. The positive DC power connection from power supply A is labeled VA, and the return is the adjacent connection labeled RT.

3. Measure and cut two strands of twisted-pair copper wire (18 to 20 AWG) long enough to connect to the DC power source, in this case, the power converter. Ensure the wire is long enough to loop through the ferrite cylinder and still maintain 4 inches of thermal spacing between the switch and the power converter.

4. With an 18-gauge wire-stripping tool, strip the ends of each twisted-pair wire to 0.25 inch or 6.3 mm.

5. Insert the exposed DC-input wires into the power and relay connector. Insert the positive wire into the VA slot. Insert the return wire into the RT slot. Make sure that you cannot see any wire lead. Only wire with insulation should extend from the connector.

   Note: If you ordered the twisted-pair wire from Cisco, the positive wire is red and the return wire is black. If your twisted-pair wire is colored differently, refer to the wire manufacturer's documentation for more information.

6. Use a ratcheting torque flathead screwdriver to torque the power and relay connector captive screws above the installed wire leads to 4.5 in-lbs.

7. Before you connect the power and relay connector to the front panel, add the ferrite assembly to the power and relay connector wiring. The ferrite reduces electromagnetic interference (EMI).

8. Position the opened ferrite assembly around the wiring within 3 inches of the power and relay connector.

9. Loop the wiring around the ferrite assembly and press the case closed until it snaps shut.

   

10. Insert the power and relay connector into the receptacle on the switch front panel.

    

11. Use a screwdriver to tighten the captive screws on the sides of the power and relay connector.

Connect the Switch to the Power Converter

Review the safety precautions regarding the power converter before installation. The power converter requires 1 inch of thermal spacing to prevent overheating. Since the switch requires 3 inches of thermal spacing, ensure that there is a minimum of 4 inches between the power converter and the Catalyst 2955 to prevent each device from overheating.

Note: The Catalyst 2955 switch does not have cooling fans.

Note: The power converter should only be used in a nonhazardous location.

Follow these steps to connect the switch to the power converter:

1. Locate the positive wire that is connected to VA on the power and relay connector. Connect the other end of the positive wire to the far-left DC positive-output connection of the power converter. Tighten the terminal block screw.

2. Locate the return wire and connect it to the far-left return-output connection of the power converter. Tighten the terminal block screw.

   

Connect the Power Cord

To connect the power converter to an AC power source, you need a standard AC power cord. Power cord connector types vary by country. Check with your electrical equipment supplier to obtain a cord that meets your site electrical requirements. Power cord color codes also vary by country, as shown in this table.

Follow these steps to prepare an AC power cord to connect to the power converter.

1. Use the wire cutters to cut off the female connector of the power cord.

2. Use the wire strippers to strip the outer insulation layer 1 inch.

3. Strip the inner wire insulation to 0.25 inch (6.3 mm).

   

4. Insert the exposed ground wire lead into the power converter ground wire connection. Ensure that only wire with insulation extends from the connector. Tighten the ground wire terminal block screw.

5. Insert the line and neutral wire leads into the terminal block line and neutral connections. Ensure that only wire with insulation extends from the connector. Tighten the line and neutral terminal block screws

   

6. Set the input voltage selector on the power converter to 115 or 230 V, depending on your country voltage settings or the requirements for the AC receptacle that you are using.

7. Connect the other end of the AC power cord to the AC outlet.

The illustration shows the Catalyst 2955 switch connected to the power converter and AC power.

Apply Power

Before you mount the switch on a DIN rail or standard rack, apply power to the switch to verify operation.

Note: Refer to the guide that came with your switch for mounting instructions.

Flip the wall switch or circuit breaker to power on the switch. After power is applied, the switch automatically begins the power-on self test (POST), a series of tests that verifies that the switch functions properly. The LED on the power converter front panel is green when the unit is operating normally. The LED is off when the unit is not operating normally.

Verify Switch Operation

The uplink port status LEDs provide system and status information during POST. On the Catalyst 2955T-12, the uplink ports are labeled 1 and 2. On the Catalyst 2955C-12 and 2955S-12, the uplink ports are labeled 13 and 14. The uplink ports are just left of the power and relay connector. To interpret POST results, refer to this table.

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Next Step

You have completed hardware installation and are ready to configure your switch using the Cisco Network Assistant (CNA). First, fill out the Site Survey which contains worksheets that you will need to configure your switch.

Once you have completed the worksheets, refer to Configure a Catalyst Switch with Cisco Network Assistant for the configuration procedure.

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Troubleshoot the Procedure

This section provides information about common problems that you may encounter. If this information does not solve your problem, contact the SMB Technical Assistance Center (SMB TAC) for assistance.

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Related Information

• Regulatory Compliance and Safety Information for the Catalyst 2950 Switch
• Download and Install Cisco Network Assistant
• Configure a Catalyst Switch with Cisco Network Assistant
• Site Survey