A.1 Switch's Rj-45 Pin Assignments - Planet IGSW-2840 User Manual

A.1 Switch's RJ-45 Pin Assignments

1000Mbps, 1000Base T
Implicit implementation of the crossover function within a twisted-pair cable, or at a wiring panel, while not expressly forbidden,
is beyond the scope of this standard.
A.2 10/100Mbps, 10/100Base-TX
When connecting your 10/100Mbps Ethernet Switch to another switch, a bridge or a hub, a straight or crossover cable is
necessary. Each port of the Switch supports auto-MDI/MDI-X detection. That means you can directly connect the Switch to any
Ethernet devices without making a crossover cable. The following table and diagram show the standard RJ-45 receptacle/
connector and their pin assignments:
Contact
1
2
3
4, 5
6
7, 8
Contact MDI
1 BI_DA+
2 BI_DA-
3 BI_DB+
4 BI_DC+
5 BI_DC-
6 BI_DB-
7 BI_DD+
8 BI_DD-
RJ-45 Connector pin assignment
MDI
Media Dependant Interface
Tx + (transmit)
Tx - (transmit)
Rx + (receive)
Not used
Rx - (receive)
Not used
MDI-X
BI_DB+
BI_DB-
BI_DA+
BI_DD+
BI_DD-
BI_DA-
BI_DC+
BI_DC-
MDI-X
Media Dependant
Interface-Cross
Rx + (receive)
Rx - (receive)
Tx + (transmit)
Tx - (transmit)
665
User's Manual of IGSW-2840
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