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x610 Series Layer 3 Gigabit Ethernet Switches Installation Guide
125
RJ-45 Twisted Pair Port Pinouts
Figure 78 illustrates the pin layout of an RJ-45 connector and port.
Pin 1
Figure 78. RJ-45 Connector and Port Pin Layout
Table 19 lists the pin signal definitions when a
port is operating in the MDI
configuration at 10 or 100 Mbps.
Table 19. MDI Pin Signals - 10 or 100 Mbps
Pin Signal
1 TX+
2 TX-
3 RX+
6 RX-
Table 20 lists the pin signal definitions whe
n a port is operating in the
MDI-X configuration at 10 or 100 Mbps.
Table 20. MDI-X Pin Signals - 10 or 100 Mbps
Pin Signal
1 RX+
2 RX-
3 TX+
6 TX-
The MDI/MDI-X setting is established auto
matically 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.