System information

INS_CNGE3FE7MS4_REV– Rev. 4.30.14 PAGE 19
INSTALLATION AND OPERATION MANUAL CNGE3FE7MS4
TECH SUPPORT: 1.888.678.9427
Pin Number Assignment
1 BI_DA+
2 BI_DA-
3 BI_DB+
4 BI_DC+
5 BI_DC-
6 BI_DB-
7 BI_DD+
8 BI_DD-
1000 BASE-T RJ-45 Pin Assignments
The CNGE3FE7MS4 switch will support auto MDI/MDI-X operation. You can use a straight-through
cable to connect a PC to the switch. The table below shows the 10BASE-T/ 100BASE-TX MDI and
MDI-X port pin outs.
Pin Number MDI port MDI-X port
1 TD+(transmit) RD+(receive)
2 TD-(transmit) RD-(receive)
3 RD+(receive) TD+(transmit)
4 Not used Not used
5 Not used Not used
6 RD-(receive) TD-(transmit)
7 Not used Not used
8 Not used Not used
10/100 BASE-TX MDI/MDI-X pins assignment
Pin Number MDI port MDI-X port
1 BI_DA+ BI_DB+
2 BI_DA- BI_DB-
3 BI_DB+ BI_DA+
4 BI_DC+ BI_DD+
5 BI_DC- BI_DD-
6 BI_DB- BI_DA-
7 BI_DD+ BI_DC+
8 BI_DD- BI_DC-
1000 BASE-T MDI/MDI-X pin assignment
Note: “+” and “-” signs represent the polarity of the wires that make up each wire pair.