Cisco Systems CATALYST 2950 manual Return Feed a Negative Negative Feed B

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Step 4 Using the ratcheting torque screwdriver, torque each terminal block captive screw (above the installed wire leads) to 4.5 lbf-in. (72 ozf-in.).

Step 5 Insert the terminal block plug in the terminal block header on the rear panel of the Catalyst 2950G-24-EI-DC switch or on the front panel of the Catalyst 2950ST-24 LRE 997 switch.

Return Feed A

Negative

Return

Negative Feed B

36 -

1

72V

- 0.5A

 

A

 

B

Step 6 Move the circuit-breaker handle for the DC power source to the on position.

Caution You must connect the Catalyst 2950G-24-EI-DC or Catalyst 2950ST-24 LRE 997 switch only to a DC-input power source that has an input supply voltage from –36 to –72 VDC. If the supply voltage is not in this range, the switch might not operate properly or might be damaged.

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Contents Catalyst 2950 Switch Getting Started Guide Equipment That You Supply to Run Express Setup About this GuideTaking Out What You Need Shipping Box Contents Running Express Setup DHCP-enabled PC Page Managing the Switch Using the Device ManagerRefreshing the PC IP Address Command-Line Interface Downloading Cisco Network AssistantOther Management Options Rack-Mounting Equipment That You SupplyBefore You Begin Installation Warning Statements Connector cover on the back of the switch. Statement Attaching the Brackets Front-mounting positionRack-Mount the Switch Connect to the Switch Ports Connect to 10/100 and 10/100/1000 PortsInstall SFP and Gbic Modules and Connect to the Ports Connecting to DC Power Ground the SwitchWiring the DC Input Power Source Return Feed a Negative Negative Feed B Troubleshooting Express Setup Case of DifficultyResetting the Switch Accessing Help OnlineObtaining Documentation For More InformationCisco.com Ordering DocumentationDocumentation Feedback Submitting a Service Request Obtaining Technical AssistanceCisco Technical Support Website Definitions of Service Request Severity Obtaining Additional Publications and InformationCisco Limited Lifetime Hardware Warranty Terms Duration of Hardware Warranty Page USA