iES12G
User’s
Manual
UM-iES12G-1.72.2-EN.docx
Pages 16 of 166
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Table 4
–
10/100 Base-T(X) MDI/MDI- X Pin Assignments
Pin Number
M DI port
M DI-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
Table 5
–
1000 Base-T MDI/MDI- X Pin Assignments
Pin Number
M DI port
M DI-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-
Note:
“+”
and
“
-
”
signs represent the polarity of the wires that make up each wire pair.
SFP
The switches come with fiber optical ports that can connect to other devices using SFP modules. The
fiber optical ports are multimode or singlemode with LC connectors. Remember that the TX port of
Switch A should be connected to the RX port of Switch B.
Figure 9
–
SFPs
Switch A
Switch B
Fiber
