Cisco Systems Cisco ME 3400 manual Connecting to DC Power

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A P P E N D I X C

Connecting to DC Power

To connect the Cisco ME switch to a DC-input power source, follow these steps:

1.Preparing for Installation, page C-1

2.Grounding the Switch, page C-2

3.Wiring the DC-Input Power Source, page C-6

Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003

Warning This unit is intended for installation in restricted access areas. A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security. Statement 1017

Caution Installation of the equipment must comply with local and national electrical codes.

Note We recommend that you use 18 AWG copper wiring for Network Equipment Building Systems (NEBS) installation. This guideline follows the standard guidelines for DC power wiring in the Central Office.

Note You can use the grounding lug to attach a wrist strap for ESD protection during servicing.

Preparing for Installation

Locate the DC terminal block plug, the ground lug, and the two number-10-32 screws in the

DC-switch kit.

Obtain these necessary tools and equipment:

•Ratcheting torque screwdriver with a Phillips head that exerts up to 15 pound-force inches (lbf-in.) of pressure

•Panduit crimping tool with optional controlled cycle mechanism (model CT-700, CT-720, CT-920, CT-920CH, CT-930, or CT-940CH)

Cisco ME 3400 Ethernet Access Switch Hardware Installation Guide

	OL-7677-04	C-1

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Contents Americas Headquarters Page N T E N T S Installing and Removing SFP Modules Speed, Duplex, and Autonegotiation IP Settings D-2 Purpose AudienceOrganization Conventions Related Publications OL-7677-04 Switch Models Setting up the SwitchFront Panel Description 1describes the switch modelsCisco ME 3400-24TS AC Ethernet Access Switch Front Panel Cisco ME 3400-24TS AC and DC Switches Front PanelCisco ME 3400G-12CS AC and DC Switches Front Panel Cisco ME 3400-24FS Switch AC Switch Front PanelSystem LED Dual-purpose ports Console port SFP module ports Cisco ME 3400G-2CS Switch Front Panel10/100 Ports Only the Cisco ME-3400-24TS Switches SFP Modules SFP Module PortsThese illustrations show the location of the System LED LEDsSFP Module Patch Cable System LEDConsole Port LEDs Power Supply LEDs Only Cisco ME 3400G-12CS SwitchesDual-Purpose Port LEDs Console PortExhaust fan Cable lock Ground connector Cisco ME 3400-24TS Switch Rear PanelCisco ME 3400-24FS Switch Rear Panel Cable lock Ground connector Fan exhaustFan exhaust AC power connector Ground connector Power Supply FeaturesCisco ME 3400G-12S Switch Rear Panel Cisco ME 3400-2CS Switch Rear PanelManagement Options Cisco ME AC Switch Power SupplyCisco ME DC Switch Power Supply Network ConfigurationsThis section covers these topics Preparing for InstallationSwitch Installation Preparing for Installation 122F 50C Statement Cisco ME 3400-24TS Switches Installation GuidelinesCisco ME 3400G-12CS Switches This section describes these installation procedures Verifying Switch OperationInstalling the Switch Powering Off the SwitchRack-Mounting Removing Screws from the SwitchRack-Mounting Brackets Attaching Brackets to the SwitchAttaching Brackets to 19-Inch Racks 191022 Attaching Brackets for 23-Inch Racks Attaching Brackets for 24-Inch Racks Attaching Brackets for Etsi Racks Phillips machine screws Cable guide and screw Mounting the Switch in a RackWall-Mounting Attaching the Brackets to the Switch for Wall-MountingPhillips flat-head screws 11 Mounting the Switch on a Wall Mounting the Switch on a WallTable- or Shelf-Mounting Installing and Removing SFP Modules12 SFP Module with a Bale-Clasp Latch Installing SFP ModulesBale clasp Removing SFP ModulesInserting and Removing the SFP Module Patch Cable 17 Connecting to an Ethernet Port Connecting to the 10/100 and 10/100/1000 PortsConnecting to Fiber-Optic SFP Modules Connecting to SFP ModulesLC connector 19 Connecting to a 1000BASE-T SFP Module Connecting to 1000BASE-T SFP Modules20 Connecting to a Dual-Purpose Port Connecting to Dual-Purpose PortsWhere to Go Next Check Switch Post Results Diagnosing ProblemsThis section includes these troubleshooting topics Ethernet and Fiber Cables Check Switch LEDsCheck Switch Connections Bad or Damaged CableSpanning Tree Loops SFP Module Port IssuesPort and Interface Settings Ping the End DeviceAutonegotiation and NIC Cards How to Clear the Switch IP Address and ConfigurationCheck Switch Performance Speed, Duplex, and AutonegotiationSerial Number Location on the Cisco ME 3400G-2CS Switch Locating the Switch Serial NumberSerial Number Location on the Cisco ME 3400G-2CS Switch These sections describe the connectors used with the switch Connector Specifications10/100 Ports Figure A-1 10/100 Port Pinouts Dual-Purpose Ports Figure A-2 Fiber-Optic SFP Module LC ConnectorSFP Module Cable Specifications Cable and Adapter SpecificationsTwo Twisted-Pair Cable Pinouts Crossover Cable and Adapter Pinouts Four Twisted-Pair Cable Pinouts for 1000BASE-T PortsIdentifying a Crossover Cable TxD RxD Adapter PinoutsRxD TxD Switch Console RJ-45-to-DB-25 Port DTE This appendix lists the switch technical specifications Technical SpecificationsAC Power Requirements Physical Dimensions OL-7677-04 Connecting to DC Power Preparing the Ground Wire Grounding the SwitchReview these safety warnings before you ground the switch Figure C-1 Stripping the Ground Wire Figure C-3 Torquing Ground-Lug Screws Torque to 15 lbf-inTelco rack Grounding wire Connecting the Grounding Wire to Earth GroundTelco rack Primary power feed Secondary redundant power feed Wiring the DC-Input Power SourceCisco ME 3400G-12CS Switches Cisco ME 3400-24TS SwitchesAll Cisco ME 3400 Switches Figure C-8 Terminal Block Plug Console Figure C-11 Inserting Wires in the Terminal Block Plug Figure C-13 Completed Wiring of Terminal Block Plug OL-7677-04 Starting the Terminal-Emulation Software Accessing the CLI Through the Console PortIP Settings Entering the Initial Configuration InformationCompleting the Setup Program Switch or as a standalone switch Enter an enable secret password, and press ReturnEnter an enable password, and press Return Enter a virtual terminal Telnet password, and press ReturnThese choices appear Numerics Auto-MDIX Pinouts See also connectors and cables cautionsConnectors and cables 10/100 ports Console port Cisco IOS command-line interface CiscoViewConnecting outside the building warning Connection proceduresIN-3 Installing SFP modules 2-17 toConnectors LEDs Running at power on Power Connecting to ACConnecting to DC Power onIN-5 Ground connectionIN-6