Appendix a switch rj-45 pin assignments – PLANET GSD-1600 User Manual
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APPENDIX A SWITCH RJ-45 PIN ASSIGNMENTS
A.1 1000Mbps, 1000Base-T
Contact
MDI
MDI-X
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-
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:
RJ-45 Connector pin assignment
Contact
MDI
Media Dependant
Interface
MDI-X
MDI5-XMedia Dependant
Interface -Cross
1
Tx + (transmit)
Rx + (receive)
2
Tx - (transmit)
Rx - (receive)
3
Rx + (receive)
Tx + (transmit)
4.5
Not used
6
Rx - (receive)
Tx - (transmit)
7.8
Not used
The standard cable, RJ-45 pin assignment