SFP Module Cable Specifications, 1000BASE-SX | Cisco Systems 3120

Appendix B Connector and Cable Specifications

Cable and Adapter Specifications

SFP Module Cable Specifications

Table B-3lists the cable specifications for the fiber-optic SFP module connections. Each port must match the wave-length specifications on the other end of the cable, and for reliable communications, the cable must not exceed the required cable length. Copper 1000BASE-T SFP transceivers use standard four twisted-pair, Category 5 (or greater) cable at lengths up to 328 feet (100 meters).

Table B-3	Fiber-Optic SFP Module Port Cabling Specifications

		Wavelength		Core Size/Cladding	Modal Bandwidth
SFP Module		(nanometers)	Fiber Type	Size (micron)	(MHz/km)1	Cable Distance
1000BASE-SX		850	MMF	62.5/125	160	722 feet (220 m)
(GLC-SX-MM)				62.5/125	200	902 feet (275 m)
				50/125	400	1640 feet (500 m)
				50/125	500	1804 feet (550 m)

1000BASE-T (GLC-T)		N/A

1. Modal bandwidth applies only to multimode fiber.

Two Twisted-Pair Cable Pinouts

Figure B-6and Figure B-7show the schematics of two twisted-pair cables for connecting to 10BASE-T- and 100BASE-TX-compatible devices.

Figure B-6

Switch

3TD+

6 TD–

1RD+

2 RD–

Figure B-7

Switch

3TD+ 6 TD–

1RD+ 2 RD–

Two Twisted-Pair Straight-Through Cable Schematic

Router or PC

3 RD+ 6 RD–

	1 TD+	H5578
	2 TD–	H5578
	2 TD–

Two Twisted-Pair Crossover Cable Schematic

Switch

3TD+

6TD–

	1 RD+	H5579
	2 RD–	H5579
	2 RD–

Cisco Catalyst Blade Switch 3120 for HP Hardware Installation Guide

	B-6	OL-12246-01

Image 60

Cisco Systems 3120 manual SFP Module Cable Specifications, Two Twisted-Pair Cable Pinouts, 1000BASE-SX, Glc-Sx-Mm

Contents

March Americas HeadquartersPage N T E N T S Setup Accessing the CLI Through the Console Port OL-12246-01 Audience PurposeOrganization Conventions Related Publications Preface OL-12246-01 Switch Module Features Overview Product Overview UID 1 LED Port Description Other Features Switch Module Console Port 10/100/1000 Ports Gigabit Ethernet Module SlotsCisco TwinGig Converter Module LRM LEDs System LEDStack LED Color System Status Stack Master LED Stack Member LEDUID and Health LEDs RJ-45 Uplink Port LEDs X2 Module Installed Only the CBS3120X Switch Gigabit Ethernet Module Slot Port LEDs Power Connectors Management OptionsStackWise Plus Ports Using the Device Manager Device Manager Using the Command-Line Interface Network Configurations Switch Installation Preparing for Installation Safety Warnings Installation Guidelines Verifying Package Contents HP c-Class BladeSystem Enclosure Architecture Rear View of the Blade Enclosure Installing the Switch Module in the Blade Enclosure Statement Open the Release Latch Switch Module IP Addresses Switch Installation Onboard Administrator Interconnect Bay Summary Window Using Express Setup Express Setup Advanced Settings Table Setting the Installed Switch Module As the Stack Master Enter switch 1 priority Planning and Creating a Switch Stack Refreshing the PC IP Address Stack Cabling Configurations 250304 Connecting to the StackWise Plus Ports Installing Devices in the 10-Gigabit Ethernet Slots Installing a Transceiver or Converter Module 12 Installing X2 Transceiver Modules Removing a Module Installing SFP Modules Installing an SFP Module 14 Converter Module with SFP Modules Installed Removing an SFP Module Connecting to the 10/100/1000 Ports 15 Connecting to an Ethernet Port Planning 10/100/1000 Ethernet Port Connections Where to Go Next Device Crossover Cable Switch Installation Where to Go Next Diagnosing Problems Verify the Switch Module Post Results Look at the Switch Module LEDs Confirm the Switch Module ConnectionsBad or Damaged Cable Ethernet and Fiber Cables SFP Module Port Issues Port and Interface SettingsPing the End Device Spanning Tree Loops Verify the Switch Module Performance Speed, Duplex, and AutonegotiationAutonegotiation and Network-Interface Cards Cabling Distance Clearing the Switch Module IP Address and Configuration Replacing a Failed Stack Member Locating the Switch Module Serial Number 250310 OL-12246-01 Physical Dimensions Environmental Ranges OL-12246-01 Connector and Cable Specifications Connector Specifications Connecting to 10BASE-T- and 100BASE-TX-Compatible Devices Connecting to 1000BASE-T Devices Gigabit Ethernet Module Interfaces Cisco TwinGig Converter Module Ports Cable and Adapter Specifications Gigabit Ethernet X2 Transceiver Module Cable SpecificationsConsole Port Microns MHz/km Distance X2 Product Transmit Power Receive Power Number TransmitDBm Wavelength nm SFP Module Cable Specifications Two Twisted-Pair Cable Pinouts1000BASE-SX GLC-SX-MM Four Twisted-Pair Cable Pinouts for 1000BASE-T Ports TP3 Switch Console RJ-45-to-DB-9 Port DTE Identifying a Crossover CableConsole Port Adapter Pinouts Device Switch Console RJ-45-to-DB-25 Port DTE OL-12246-01 Accessing the CLI Through the Console Port Connecting to the Console Port OL-12246-01 Figure C-1 Connecting through the Switch Module Console Port Completing the Initial Configuration To configure Snmp now, enter yes These choices appear Numerics CLI IN-2 UID Post LED IN-4 IN-5 IN-6