User`s manual

44 CMX34GS cpuModule BDM-610000082 Rev A
Ethernet (10/100/1000Base-T and -TX) Connectors (CN20 and CN30)
This connector provides a 10/100/1000Base-T Ethernet connection. Table 26 provides the pinout of the Ethernet
connector. For 1000Base-T, all four pairs are used for transmit and receive.
To use the onboard 10/100/1000 Ethernet controller, Ethernet must be enabled in the BIOS.
When enabled, the multi-color LED will blink to indicate an Ethernet connection. For more information, refer to
the Multi-Color LED section on page 69.
Table 26 Ethernet Connector (CN20 and CN30)
RJ-45 Pin 10-Pin DIL Pin Signal Function
3 1 B+ (RX+) Receive+ (10/100)
6 2 B- (RX–) Receive– (10/100)
43C+
54C-
1 5 A+ (TX+) Transmit+ (10/100)
2 6 A- (TX–) Transmit– (10/100)
77D+
88D-
—9AGNDEthernet Ground
— 10 AGND Ethernet Ground
97531
AGND D+ A+ C+ B+
AGND D+ A– C+ B–
108642