Specifications

INS_CNGE28FX4TX24MSPOE+_REV–
08/31/12 PAGE 13
INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+
Tech SupporT: 1.888.678.9427
1000 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-
Note: “+” and “-” signs represent the polarity of the wires that make up each wire pair.
SFP
The Switch has fiber optical ports with SFP connectors. The fiber optical ports are in multi-mode
(0 to 550M, 850 nm with 50/125 µm, 62.5/125 µm fiber) and single-mode with LC connector. Please
remember that the TX port of Switch A should be connected to the RX port of Switch B.
Switch A Switch B