SMC Networks SMC8124PL2 Straight-Through Wiring

Cables

B-2

B

Straight-Through Wiring

If the twisted-pair cable is to join two ports and only one of the ports has an internal

crossover (MDI-X), the two pairs of wires must be straight-through. (When

auto-negotiation is enabled for any RJ-45 port on this switch, you can use ei th er

straight-through or crossover cable to connect to any device type. )

You must connect all four wire pairs as shown in the following diagram to support

Gigabit Ethernet connections.

Figure B-2 Straight-through Wiring

Table B-1 10/100BASE-TX MDI and MDI-X Port Pinouts

Pin MDI Signal Name MDI-X Signal Name

1 Receive Data plus (RD+)

and GND (Positive Vport)Transmit Data plus (TD+)

and -48V feeding power (Negative Vport)

2 Receive Data minus (RD-) and

and GND (Positive Vport)Transmit Data minus (TD-)

and -48V feeding power (Negative Vport)

3 Transmit Data plus (TD+)

and -48V feeding power (Negative Vport)Receive Data plus (RD+)

and GND (Positive Vport)

6 Transmit Data minus (TD-)

and -48V feeding power (Negative Vport)Receive Data minus (RD-)

and GND (Positive Vport)

4, 5, 7, 8 not used not used

Note: The “+” and “-” signs represent the polarity of the wires that make up each wire pair.

White/OrangeStripe

Orange

White/GreenStripe

Green

1

2

3

4

5

6

7

8

1

2

3

4

5

6

7

8

EIA

/

TIA568B RJ-45 Wiring

S

tandard

10/100BASE-TX Straight-throughCable

EndAEnd B

Blue

White/BlueStripe

Brown

White/BrownStripe

Contents

Main Page Page Page v Limited Warranty vi vii Compliances and Safety Warnings FCC - Class A Japan VCCI Class A Industry Canada - Class A CE Mark Declaration of Conformance for EMI and Safety (EEC) ix Safety Compliance Power Cord Safety x Veuillez lire fond l'information de la scurit suivante avant d'installer le Switch: xi Bitte unbedingt vor dem Einbauen des Switches die folgenden Sicherheitsanweisungen durchlesen: xii Warnings and Cautionary Messages Warnings (in German) xiii Environmental Statement End of Product Life Span Manufacturing Materials Documentation Purpose Page Contents Page Page Page Tables Figures Chapter 1: About the 1-1 TigerSwitch 10/100/1000 Overview Switch Architecture Description of Hardware 10/100/1000BASE-T Ports Description of Hardware 1-3 SFP Slots Port and System Status LEDs About the TigerSwitch 10/100/1000 1-4 Power Supply Socket Features and Benefits Connectivity Page Page 2-1 Chapter 2: Network Planning Introduction to Switching Application Examples Collapsed Backbone Network Planning Network Aggregation Plan ... ... ... Application Examples 2-3 Remote Connections with Fiber Cable Making VLAN Connections Network Planning 2-4 Application Notes 3-1 Chapter 3: Installing the Switch Selecting a Site Ethernet Cabling Installing the Switch 3-2 Equipment Checklist Package Contents Optional Rack-Mounting Equipment Mounting 3-3 Mounting Rack Mounting Desktop or Shelf Mounting Installing an SFP Transceiver 3-5 Installing an SFP Transceiver Installing the Switch 3-6 Connecting to a Power Source Connecting to the Console Port Connecting to the Console Port 3-7 Wiring Map for Serial Cable Page 4-1 Chapter 4: Making Network Connections Connecting Network Devices Twisted-Pair Devices Power-over-Ethernet Connections Cabling Guidelines Connecting to PCs, Servers, Hubs and Switches Network Wiring Connections Fiber Optic SFP Devices 4-3 Fiber Optic SFP Devices 4-4 Connectivity Rules 4-5 Connectivity Rules 1000BASE-T Cable Requirements 1000 Mbps Gigabit Ethernet Collision Domain 4-6 100 Mbps Fast Ethernet Collision Domain Cable Labeling and Connection Records Page Page A-1 Appendix A: Troubleshooting Diagnosing Switch Indicators Power and Cooling Problems Installation Troubleshooting A In-Band Access B-1 Appendix B: Cables Twisted-Pair Cable and Pin Assignments 10BASE-T/100BASE-TX Pin Assignments Cables B-2 Straight-Through Wiring S / Pin MDI Signal Name MDI-X Signal Name EIA Crossover Wiring 1000BASE-T Pin Assignments Cables B-4 Cable Testing for Existing Category 5 Cable Fiber Standards C-1 Appendix C: Specifications Physical Characteristics Specifications C-2 C Switch Features Management Features Standards Compliances C Compliances Warranty Page D-1 Appendix D: German Instructions Eine Site Auswhlen (Selecting a Site) Montage (Rack Mounting Instructions) Rack-Montage German Instructions D E-1 Appendix E: Ordering Information Product Number Description Page Glossary Page Page Page Index Index-1 Numerics A B Index Index-2 L M N