Chapter 71 Appendex A; Switch Srj-45 Pin Assignments; 10/100Mbps, 10/100Base-Tx - Planet XGS3-42000R User Manual

71.1 A.1 Switch's RJ-45 Pin Assignments
1000Mbps, 1000B ase T
Implicit implementation of the crossover function within a t wisted-pair cable, or at a wiring panel, while not
expressly forbidden, is beyond the scope of this standard.
71.2 A.2 10/100Mbps, 10/100Base-TX
When connecting your 10/100Mbps Ethernet Switch to anot her 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

Chapter 71 APPENDEX A

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)
Rx - (receive)
The standard cable, RJ-45 pin assignment
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)
Not used
Tx - (transmit)
Not used
71-1