Cisco Systems 3650 manual Switch Installation Connecting Devices to the Ethernet Ports

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Chapter 2 Switch Installation

Connecting Devices to the Ethernet Ports

The autonegotiation feature is enabled by default on the switch. At this setting, the switch ports configure themselves to operate at the speed of attached device. If the attached device does not support autonegotiation, you can explicitly set the switch port speed and duplex parameters. To maximize performance, either let the ports autonegotiate both speed and duplex, or set the port speed and duplex parameters on both ends of the connection.

For simplified cabling, the automatic medium-dependent interface crossover (auto-MDIX) feature is enabled by default on the switch. With auto-MDIX enabled, the switch detects the required cable type for copper Ethernet connections and configures the interface accordingly. Therefore, you can use either a crossover or a straight-through cable for connections to a switch 10/100/1000 Ethernet port regardless of the type of device on the other end of the connection.

See the switch software configuration guide or the switch command reference on Cisco.com for more information about enabling or disabling autonegotiation and auto-MDIX.

If auto-MDIX is disabled, use the guidelines in Table 2-1to select the correct cable for connecting the switch 10/100/1000 Ethernet ports to other devices. See the “Cable and Adapter Specifications” section on page B-5for cable-pinout descriptions.

	Catalyst 3650 Switch Hardware Installation Guide
2-20	OL-29734-01

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Contents Document Conventions PrefacePurpose Obtaining Documentation and Submitting a Service Request Related DocumentationProduct Overview Switch ModelsSwitch Model Cisco IOS Image Description Product Overview Switch Models Switch Model Cisco IOS Image Description Front Panel Catalyst 3650-48PD-L Switch Front Panel Management Ports 10/100/1000 Ethernet PortsPoE and PoE+ USB Type a Port USB Mini-Type B PortSFP and SFP+ Modules Uplink PortsLEDs 3 4 5 Color System StatusMode LED Port Mode Description Port LEDs and ModesPort Mode Port LED Color Meaning USB Console LED ColorPoE+ LED Color DescriptionUplink Ports LEDs Color PoE+ StatusRear Panel Color Uplink Ports Link StatusRJ-45 Console Port Status1 RJ-45 Console Port LEDStackWise Ports Power Supply Modules Models Default Power Supply Available PoE Power PoE Option Port SwitchAC-Power Supply Module LEDs ModelsDC-Power Supply Module LEDs Fan ModulesRJ-45 Console Port Management OptionsEthernet Management Port Network Configurations OL-29734-01 Safety Warnings Switch InstallationPreparing for Installation OL-29734-01 Installation Guidelines Planning a Switch Data Stack Verifying Switch OperationPowering Off the Switch Tools and EquipmentSwitch Stacking Guidelines Data Stack Cabling ConfigurationsData Stacking up to Four Switches in a Side-by-Side Mounting Data Stack Bandwidth and Partitioning ExamplesPower-On Sequence for Switch Data Stacks Example of a Data Stack with Half Bandwidth ConnectionsChanges to Switch Stack Membership Installing the Switch Rack-Mounting Attaching the Rack-Mount Brackets Rack-Mounting BracketsAttaching Brackets for 19-inch Racks Mounting the Switch in a Rack Mounting the Switch in a RackAfter Installing the Switch Table- or Shelf-MountingConnecting to the StackWise Ports Installing the StackWise Adapter in a StackWise Port Installing and Removing SFP and SFP+ Modules Installing SFP and SFP+ Modules14 Installing an SFP Module in an Uplink Port 10/100/1000 Ethernet Port Connections Connecting Devices to the Ethernet PortsRemoving SFP or SFP+ Modules Switch Installation Connecting Devices to the Ethernet Ports PoE+ Port Connections Device Crossover CableWhere to Go Next Part Number Description Power Supply InstallationPower Supply Module Overview AC OK LED 640-W AC Power Supply Module 6 5 DC Power Supply Module LEDs Installation GuidelinesAC Power Supply Module LEDs Installing or Replacing an AC Power Supply Installing a DC Power Supply StatementGrounding the Switch Equipment That You NeedStripping the Ground Wire 10 Attaching the Ground Lug and Wire Assembly Installing the DC Power Supply in the Switch Wiring the DC Input Power SourceFinding the Power Supply Module Serial Number 12 DC Source a Isolated From Source B with No Common Ground14 1025-W AC Power Supply Serial Number 16 640-W DC Power Supply Module Serial Number Installing the Fan OverviewFan Module Installation Installing a Fan Module Fan LEDFinding the Fan Module Serial Number Fan Module Serial NumberTroubleshooting Diagnosing ProblemsSwitch Post Results Switch LEDsSwitch Connections Bad or Damaged CableEthernet and Fiber Cables Link StatusSFP Modules 10/100/1000 Port ConnectionsPoE and PoE+ Port Connections Switch Performance Interface SettingsPing End Device Spanning Tree LoopsCabling Distance Resetting the SwitchAutonegotiation and Network Interface Cards Finding the Switch Serial Number Replacing a Failed Data Stack MemberEnvironmental Ranges Technical SpecificationsSwitch Specifications Physical Specifications Power Supply Module Specifications Power SpecificationsPower Specifications Operating Specification Fan Module SpecificationsPhysical Specification OL-29734-01 10/100/1000 Ports Connector and Cable SpecificationsConnector Specifications Gigabit Ethernet CX1 SFP+ Copper Connectors SFP and SFP+ ModulesFigure B-4 Simplex LC Cable Connector 10/100/1000 Ethernet Management PortConsole Port Figure B-7 10/100 Port PinoutsCable and Adapter Specifications StackWise CablesStackWise Adapters StackWise Cables Minimum Bend Radius and Coiled DiameterLocating the StackWise Adapter Serial Number Cable Part Number Cable Length Minimum Bend RadiusSFP and SFP+ Module Cable Specifications StackWise Adapter BlanksFour Twisted-Pair Cable Pinouts Two Twisted-Pair Cable PinoutsSwitch Console RJ-45-to-DB-9 Port DTE Identifying a Crossover CableConsole Port Adapter Pinouts DeviceSwitch Console RJ-45-to-DB-25 Port DTE DSR DTR CTS RTSConfiguring the Switch with the CLI-Based Setup Program Accessing the CLIAccessing the CLI Through Express Setup Accessing the CLI Through a Console PortUSB Console Port Installing the Cisco Microsoft Windows USB Device Driver Uninstalling the Cisco Microsoft Windows USB Driver Uninstalling the Cisco Microsoft Windows XP USB DriverConfiguring the Setup Program Entering the Initial Configuration InformationIP Settings Enter a host name for the switch, and press Return These choices appear OL-29734-01