Manual
Table Of Contents
- Contents
- List of Figures
- List of Tables
- Preface
- Chapter 1
- Overview
- Chapter 2 :
- Chapter 3
- Chapter 4
- Chapter 5
- Troubleshooting
- Power LED is Off
- Twisted Pair Port Link LED is Off
- SFP or XFP LED is Off
- Transceiver is Installed but the Status is “Not Present”
- System Fault LED is Blinking
- System Fault LED is Steadily On
- Cannot Establish a Local (Out-of-Band) Management Session
- Switch Functions Intermittently
- Issues with Virtual Stacking Chassis Configuration
- Troubleshooting
- Appendix A

Appendix A: Technical Specifications
104
RJ-45 Twisted Pair Port Pinouts
Figure 48 illustrates the pin layout of an RJ-45 connector and port.
Figure 48. RJ-45 Connector and Port Pin Layout
Table 14 lists the pin signal definitions when a port is operating in the MDI
configuration at 10 or 100 Mbps.
Table 15 lists the pin signal definitions when a port is operating in the MDI-
X configuration at 10 or 100 Mbps.
The MDI/MDI-X setting is established automatically when a port is set to
Auto-Negotiation. If a port’s speed and duplex are set manually, the MDI/
MDI-X setting defaults to the MDI-X setting.
Table 14. MDI Pin Signals - 10 or 100 Mbps
Pin Signal
1TX+
2TX-
3RX+
6RX-
Table 15. MDI-X Pin Signals - 10 or 100 Mbps
Pin Signal
1RX+
2RX-
3TX+
6TX-
Pin 1