Cisco Systems 3750-E, 3560-E manual Wiring the DC-Input Power Source

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Chapter 3 Power Supply and Fan Module Installation

Installing a DC-Power Supply

Wiring the DC-Input Power Source

To wire the DC-power-supply module to a DC-input power source, follow these steps.

Step 1 Using a wire-stripping tool, strip each of the four wires coming from the DC-input power source to the appropriate length for either the round eyelet or the fork-type terminals.

Step 2 Using a Panduit crimping tool, crimp the terminals to the 16-gauge DC-power input wires.

Step 3 Connect the DC-input power terminals to the terminal blocks as shown in Figure 3-10or Figure 3-11. Make sure to match the polarity (negative to negative, positive to positive) when connecting the wires to the terminal blocks.

Figure 3-10 DC Source A Isolated From Source B with No Common Ground, 24- and 48-port Switches

+

B+

B-

+

A+

A-

157718

Figure 3-11 DC Source A and Source B Connections, Catalyst 3560E-12D and 3560E-12SD Switches

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-

1

B+

B-

+

-

A+

A-

202313

1

Connect to grounded metal rack, or connect to earth ground if the switch is not installed in a grounded rack.

Step 4 Torque all terminal block screws to 5 lbf-in. (80 ozf-in.).

Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide

	OL-9774-03	3-9

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Contents Text Part Number OL-9774-03 Americas HeadquartersPage N T E N T S Connecting Devices to the Ethernet Ports Wiring the DC-Input Power Source Accessing the CLI Through the Console Port C-1 Audience PurposeConventions Viii Related PublicationsPreface OL-9774-03 Part Number Description Switch ModelsFront Panel Description Switch Part Number Description24- and 48-Port Switch Front Panel PoE Ports 10/100/1000 Ethernet PortsGigabit Ethernet Module Slots SFP ModulesCisco TwinGig Converter Module LEDs 24- and 48-Port Switch LEDsColor System Status System LEDMaster LED Power Supply LEDsColor RPS Status ColorMode LED Port Mode Description Fan LEDPort LEDs and Modes Port Mode Port LED Color Meaning Color PoE Status PoE LEDStack LED Stack LEDRear Panel Description 24- and 48-Port Switch Rear PanelStackWise Ports Catalyst 3560E-12D Switch Rear Panel48-Port Switch Power-Supply Modules Power-Supply ModulesSwitch Port PoE Port non-PoE Port Non-PoEDC-Power-Supply Module LEDs Description AC-Power-Supply Module LEDsModule LEDs Description Fan ModulesManagement Ports RPS ConnectorManagement Options Network Configurations Safety Warnings Preparing for InstallationOL-9774-03 Switch Installation Preparing for Installation Statement 371-Power Cable and AC Adapter Installation Guidelines Box ContentsTools and Equipment Switch Stacking Guidelines Planning a Switch Stack Catalyst 3750-E SwitchesStack Cabling Configurations Example of a Stack with Full Bandwidth Connections Stack Bandwidth and Partitioning ExamplesExample of a Stack with a Failover Condition Power On Sequence for Switch StacksRack-Mounting Installing the SwitchRack-Mounting Brackets Attaching the Rack-Mount Brackets 10 Removing Screws from the Switch11 Attaching Brackets for 19-inch Racks Mounting the Switch in a Rack Mounting the Switch in a RackWall-Mounting Attaching the Brackets to the Switch for Wall-MountingMounting the Catalyst 3560E-12D Switch on a Wall Mounting the Catalyst 3560E-12SD Switch on a Wall Table- or Shelf-Mounting After Installing the SwitchConnecting to the StackWise Ports Catalyst 3750-E Switches Installing X2 Transceiver Modules and Converter Modules Installing Devices in the 10-Gigabit Ethernet SlotsModule inserted face up Module inserted face down 202046 Removing an X2 Transceiver Module or Converter Module Installing SFP ModulesInstalling an SFP Module Lower SFP modules are inverted on 24- and 48-port switches Removing an SFP Module Connecting Devices to the Ethernet Ports10/100/1000 Ethernet Port Connections PoE Port ConnectionsDevice Crossover Cable Switch Installation Connecting Devices to the Ethernet Ports Where to Go Next OL-9774-03 Installation Overview Power Supply and Fan Module InstallationOL-9774-03 Inserting the AC-Power Supply in 24- and 48-Port Switches Installing an AC-Power SupplyAC-Power Supply with Power Cord Retainer Installing a DC-Power SupplyGrounding the Switch Preparing for Installation Stripping the Ground Wire See -9for the Catalyst 3560E-12SD ground location Inserting the DC-Power Supply in 24- and 48-Port Switches Installing the DC Power Supply in the SwitchWiring the DC-Input Power Source 12 Inserting the Fan Module in 24- and 48-Port Switches Installing a Fan Module202049 OL-9774-03 Check Switch Post Results Diagnosing ProblemsCheck Switch Connections Check Switch LEDsBad or Damaged Cable Ethernet and Fiber CablesTransceiver Issues Port and Interface SettingsPoE Connections Ping End Device Check Switch PerformanceSpanning Tree Loops Speed, Duplex, and AutonegotiationHow to Clear the Switch IP Address and Configuration Autonegotiation and NIC CardsCabling Distance How to Replace a Failed Stack Member Finding the Switch Serial NumberTroubleshooting How to Replace a Failed Stack Member OL-9774-03 Environmental Ranges Physical SpecificationsPower Specifications Table A-5 OL-9774-03 Connector Specifications Connector and Cable SpecificationsGigabit Ethernet Module Interfaces 10/100/1000 PortsFigure B-4 Duplex LC Cable Connector Console Port 10/100 Ethernet Management PortGigabit Ethernet X2 Transceiver Module Cable Specifications Cable and Adapter SpecificationsModal X2 Product Wavelength Core Size Bandwidth Number Microns MHz/kmX2 Product Transmit Power Receive Power Number SFP Module Cable SpecificationsTransmit DBm Wavelength nm652 43.4 to 62 miles 1530 To 100 km 1570 1610 Four Twisted-Pair Cable PinoutsTwo Twisted-Pair Cable Pinouts Two Twisted-Pair Crossover Cable SchematicIdentifying a Crossover Cable Switch Console RJ-45-to-DB-9 Port DTEConsole Port Adapter Pinouts DeviceSwitch Console RJ-45-to-DB-25 Port DTE Accessing the CLI Accessing the CLI Through Express SetupAccessing the CLI Through the Console Port Entering the Initial Configuration Information IP SettingsConnecting to the Console Port Completing the Setup Program Line vty 0 These choices appear OL-9774-03 Numerics IN-2 IN-3 IN-4 IN-5 IN-6

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