Installation ManualH3C S7500 Series Ethernet Switches Chapter 4 Hardware Installation4-12Table 4-2 RJ-45 MDI connector pinouts10Base-T/100Base-TX 1000Base-TPinoutSignal Function Signal Function1 Tx+ Transmit data BIDA+ Bi-directional data cable A+2 Tx- Transmit data BIDA- Bi-directional data cable A-3 Rx+ Receive data BIDB+ Bi-directional data cable B+4 Reserved — BIDC+ Bi-directional data cable C+5 Reserved — BIDC- Bi-directional data cable C-6 Rx- Receive data BIDB- Bi-directional data cable B-7 Reserved — BIDD+ Bi-directional data cable D+8 Reserved — BIDD- Bi-directional data cable D-Note:Tx = Transmit dataRx = Receive dataBI = Bi-directional dataTable 4-3 RJ-45 MDI-X connector pinouts10Base-T/100Base-TX 1000Base-TPinoutSignal Function Signal Function1 Rx+ Receive data BIDB+ Bi-directional data cable B+2 Rx- Receive data BIDB- Bi-directional data cable B-3 Tx+ Transmit data BIDA+ Bi-directional data cable A+4 Reserved — BIDD+ Bi-directional data cable D+5 Reserved — BIDD- Bi-directional data cable D-6 Tx- Transmit data BIDA- Bi-directional data cable A-7 Reserved — BIDC+ Bi-directional data cable C+8 Reserved — BIDC- Bi-directional data cable C-
