Cisco Systems CGS 2520 manual Connecting to the 10/100 and 10/100/1000 Ports

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Chapter 2 Switch Installation

Connecting Devices to the Ethernet Ports

Connecting to the 10/100 and 10/100/1000 Ports

The 10/100 and 10/100/1000 Ethernet ports use standard RJ-45 connectors with Ethernet pinouts. The maximum cable length is 328 feet (100 meters). The 100BASE-TX and 1000BASE-T traffic requires Category 5, Category 5e, or Category 6 UTP cable. The 10BASE-T traffic uses Category 3 or Category 4 cable.

The auto-negotiation feature is enabled by default on the switch. At this setting, the switch ports configure themselves to operate at the speed of the attached device. If the device does not support auto-negotiation, you can 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. 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 10/100/1000 Ethernet port, regardless of the type of connected device.

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

If auto-MDIX is disabled, use the guidelines in Table 2-1to select the cable for connecting the 10/100/1000 Ethernet ports to other devices.

See the “Connector and Cable Specifications” section on page B-1for cable-pinout descriptions.

Figure 2-24 Connecting to an Ethernet Port

Connecting to the 10/100 PoE+ Ports

The Cisco CGS-2520-16S-8PC switch (and the CGS-2520-16S-8PC-C switch) 10/100 PoE+ ports have the same auto-negotiation settings and cabling requirements as those in the “Connecting to the 10/100 and 10/100/1000 Ports” section on page 2-25. These ports provide PoE power.

See the “PoE and PoE+ Ports” section on page 1-4for information on the cables and connectors.

The ports provide PoE support for devices compliant with IEEE 802.3af and also provide Cisco prestandard PoE support for Cisco IP Phones and Cisco Aironet Access Points.

On a per-port basis, you can control whether or not a port automatically provides power to a connected IP phone or an access point.

To access an advanced PoE+ planning tool, use the Cisco Power Calculator on Cisco.com:

http://tools.cisco.com/cpc/launch.jsp

 

 

Cisco CGS 2520 Hardware Installation Guide

 

 

 

 

 

 

OL-31444-01

 

 

2-25

 

 

 

 

 

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Contents Cisco CGS 2520 Hardware Installation Guide Page N T E N T S Wall-Mounting Troubleshooting Accessing the CLI Through the Console Port C-1 Preface Related Publications Obtaining Documentation and Submitting a Service RequestProduct Overview Cable Side Switch ModelsModel Description Cisco CGS-2520-16S-8PC Cable-Side View PortsPoE and PoE+ Ports 10/100BASE-T PortsSFP Modules Dual-Purpose Gigabit Ethernet PortsType of SFP Module Model SFP Module Patch CableAlarm Ports Power-Input TerminalAlarm Input Alarm OutputManagement Ports LEDsSystem LED Switch Panel LEDsColor System Status Alarm LEDs Power Supply Module LEDsConsole LEDs PoE LED Port LEDsColor Description LED Color MeaningSD Flash Memory Card Power Supply SideDual-Purpose Port LEDs SD Flash Memory Card LEDPSU OK LED Power Supply Features Power Supply-Side LEDsManagement Options Network Configurations Switch Installation 140F 60C Statement Verifying Switch Operation Installation Guidelines75 in .4 cm. Statement Mounting into a Rack Installing the SwitchMounting Brackets 2shows the 23-inch rack mounting brackets Attaching Brackets for 19-Inch RacksAttaching Brackets for 19-Inch Racks Attaching Brackets for 19-Inch Racks IP-30 Compliance Inserting the Rubber Plugs Inserting the Rubber Plugs Inserting the Rubber Plugs detail Attaching Brackets for 19-Inch Racks 10 Attaching Brackets for 19-Inch Racks Attaching Brackets for 23-Inch Racks11 Attaching Brackets for 23-Inch Racks Attaching Brackets for Etsi Racks12 Attaching Brackets for Etsi Racks Mounting the Switch into a Rack Attaching Brackets for Wall Mounting Wall-Mounting14 Attaching 19-inch Rack Brackets for Wall Mounting Wall-Mounting for IP-30 Compliance15 Inserting the Rubber Plugs into the Switch Holes Installing SFP Modules Installing and Removing SFP ModulesRemoving SFP Modules 17 Installing an SFP Module18 Removing a Bale Clasp Latch SFP Module Inserting and Removing the SFP Module Patch CableRemoving the SFP Module Patch Cable Replacing the SD Flash Memory Card21 Loosening the Captive Screw Device Crossover Cable Straight-Through Cable Connecting Devices to the Ethernet PortsConnecting to the 10/100 PoE+ Ports Connecting to the 10/100 and 10/100/1000 PortsWhere to Go Next Power Supply Modules Power Supply InstallationPWR-RGD-AC-DC Power Supply Module Power Supply Module InstallationInstalling a Power Supply Module Installation GuidelinesEquipment That You Need Grounding the Switch Dual-hole terminal lug Loosen the Screws on the Power Supply Blank Installing the Power Supply Module in the SwitchAC 5 A, DC 15 a Statement Wiring the Power SourcePSU2 11 Stripping the Input Power Source Wire 12 Crimping the Spade Terminal Lug AC power Removing the Power Supply Module15 Removing the Screws Switch Post Results Diagnosing ProblemsSwitch LEDs Bad or Damaged Cable Switch ConnectionsEthernet and Fiber-Optic Cables Link Status10/100 PoE+ Port Connections 10/100 and 10/100/1000 Port ConnectionsSFP Module Interface Settings Switch PerformancePing End Device Spanning Tree LoopsCabling Distance Auto-Negotiation and Network Interface CardsFinding the Switch Serial Number Resetting the Switch to the Factory Default SettingsPhysical Specifications Switch SpecificationsEnvironmental Ranges Power Requirements Power Requirements Power Specifications Power Supply Module Specifications10/100 Ethernet Ports Connector SpecificationsFigure B-2 Fiber-Optic SFP Module LC Connector SFP Module ConnectorsAlarm Ratings Alarm PortDual-Purpose Ports SFP Module Cables Cables and AdaptersIndustrial and Rugged SFPs Commercial SFPs100BASE-BX Cable Pinouts Extended temperature SFPsFigure B-6 DSR DTR CTS RTS Console Port Adapter PinoutsSwitch Console RJ-45-to-DB-25 Port DTE Adapter Device OL-31444-01 RJ-45 Console Port Accessing the CLI Through the Console PortFigure C-1 Connecting the Console Cable USB Console Port Figure C-2 Connecting the USB Console CableInstalling the Cisco Microsoft Windows XP USB Driver Installing the Cisco Microsoft Windows USB Device DriversInstalling the Cisco Microsoft Windows 2000 USB Driver Installing the Cisco Microsoft Windows Vista USB Driver Uninstalling the Cisco Microsoft Windows USB DriversIP Settings Entering the Initial Configuration InformationUninstalling the Cisco Microsoft Windows Vista USB Driver Completing the Setup Program These choices appear