3com S7906E Guide D’Installation Rapide

Page de 155
 
3-14 
10Base-T/100Base-TX 
1000Base-T 
Pin 
Signal 
Function 
Signal 
Function 
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- 
 
 
Tx = Transmit data 
Rx = Receive data 
BI = Bi-directional data 
 
Table 3-3 RJ-45 MDI-X interface pinouts  
10Base-T/100Base-TX 
1000Base-T 
Pin 
Signal 
Function 
Signal 
Function 
1 Rx+  Receive 
data 
BIDB+ 
Bi-directional data cable B+ 
2 Rx- 
Receive 
data 
BIDB- 
Bi-directional data cable B- 
3 Tx+ 
Send 
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- 
Send 
data 
BIDA- 
Bi-directional data cable A- 
7 Reserved 
— 
BIDC+ 
Bi-directional data cable C+ 
8 Reserved 
— 
BIDC- 
Bi-directional data cable C- 
 
 
Pins 1 and 2 (negative), 3 and 6 (positive) are used for external PoE power supply. 
 
Connection procedure 
1)  Plug one end of the network cable into the Ethernet RJ-45 jack of the switch to be connected. 
2)  Plug the other end of the cable into the RJ-45 port of the peer device.