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INS_CNGE24MS-OB(M,S)_REV–
09/12/12 PAGE 12
INSTALLATION AND OPERATION MANUAL
CNGE24MS-OB(M,S)
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 CNGE24MS-OB(M,S) switch supports auto MDI/MDI-X operation. You can use a straight-
through cable to connect a PC to the switch. The table below shows the 10/100BASE-T(X) 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-T 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 pins assignment
Note: “+” and “-” signs represent the polarity of the wires that make up each wire pair.