EPC-3307 Hardware Reference
104
Ethernet (optional)
The DTE RJ-45 phone jack provides support for one 10/100BASE-T
Ethernet channel.
RS-232 serial port (COM 1)
The RS-232 serial port is an RJ-45 phone jack.
Table C-17. Connector B, Blue Heron memory card
Pin
Signal
Pin
Signal
69
SMBCLK
70
UPR_2BKS_~1BNK
71
SMBDAT
72
LWR_2BKS_~1BNK
73
Reserved
74
SPARE1
75
SA0_LWR
76
SA1_LWR
77
SA0_UPR
78
SA1_UPR
79
+3.3V
80
GND
Table C-18. RJ45 phone jack pin-out
Pin
Signal
Pin
Signal
1
T
5
Center tap transmit
2
Transmit–
6
Receive–
3
7
Center tap receive
4
Center tap transmit
8
Center tap receive
1
2
3
4
5
6
7
8
Table C-19. RJ45 phone jack pin-out
Pin
Signal
Pin
Signal
1
Data carrier detect IN/CD
5
Receive data IN/RxD
2
Request to send OUT/RTS
6
Signal ground
3
Signal ground
7
Clear to send IN/CTS
4
Transmit data OUT/TxD
8
Data terminal ready
OUT/DTR
1
2
3
4
5
6
7
8
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