All specifications are subject to change without notice.
QIG-iPJ2G-2-EN.docx
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Communication Connections
1000Base-T Ethernet Port Connection
RJ45 (8-pin, MDI) Port Pinouts
RJ45 (8-pin, MDI-X) Port Pinouts
Pin #
MDI
Pin #
MDI
1
BI_DA +
1
BI_DB +
2
BI_DA -
2
BI_DB -
3
BI_DB +
3
BI_DA +
4
BI_DC +
4
BI_DD +
5
BI_DC -
5
BI_DC -
6
BI_DB +
6
BI_DA +
7
BI_DD +
7
BI_DC +
8
BI_DD -
8
BI_DC -
10/100Base-T(X) Ethernet Port Connection
RJ45 (8-pin, MDI) Port Pinouts
RJ45 (8-pin, MDI-X) Port Pinouts
Pin #
MDI
Pin #
MDI
1
Tx +
1
Rx +
2
Tx -
2
Rx -
3
Rx +
3
Tx +
6
Rx -
6
Tx -
RJ45 (8-pin) to RJ45 (8-Pin) Straight-Through Cable Wiring
Switch Port
NIC Port
RJ-45 Connector
RJ-45 Connector
Tx +
3 3
Rx +
Tx -
6 6
Rx -
Rx +
1 1
Tx +
Rx -
2 2
Tx -
RJ45 (8-pin) to RJ45 (8-Pin) Cross-Over Cable Wiring
Switch Port
(NIC Port)
Switch Port
(NIC Port)
RJ-45 Connector
RJ-45 Connector
(Rx +) Tx +
3 1
(Rx +) Tx +
(Rx -) Tx -
6 2
(Rx -) Tx -
(Tx +) Rx +
1 3
(Tx +) Rx +
(Tx -) Rx -
2 6
(Tx -) Rx -
