2.5 Fast Ethernet Ports
The M-12 D-coded Fast Ethernet ports are auto-sensing for 10Base-T or 100Base-TX
connections. Auto MDI/MDI-X means that you can connect to another switch or
workstation without changing straight-through or cross-over cabling.
M12 D-coded Connector Pin Assignments
Figure 2.6: M12 D-coded Fast Ethernet Connector
Pin Number
Assignments
1 Tx+
2 RX+
3 TX-
4 Rx-
Note
“+” and “-” signs represent the polarity of the wires that make up each wire pair.
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