H3C SecPath U200 Series Installation Manual page 79

Figure 57 Crossover cable
Select an Ethernet twisted pair cable according to the RJ-45 Ethernet port type on your device. An RJ-45
Ethernet interface can be MDI (for routers and PCs) or MDIX (for switches). For the pinouts of RJ-45
Ethernet interfaces, see
Table 32 RJ-45 MDI interface pinouts
10Base-T/100Base-TX
Pin
Signal
1 Tx+
2 Tx-
3 Rx+
4 Reserved
5 Reserved
6 Rx-
7 Reserved
8 Reserved
Table 33 RJ-45 MDI-X interface pinouts
10Base-T/100Base-TX
Pin
Signal
1 Rx+
2 Rx-
3 Tx+
4 Reserved
Table 32 and Table 33.
Function
Send data
Send data
Receive data
N/A
N/A
Receive data
N/A
N/A
Function
Receive data
Receive data
Send data
N/A
70
1000Base-T
Signal Function
BIDA+ Bi-directional data cable A+
BIDA- Bi-directional data cable A-
BIDB+ Bi-directional data cable B+
BIDC+ Bi-directional data cable C+
BIDC- Bi-directional data cable C-
BIDB- Bi-directional data cable B-
BIDD+ Bi-directional data cable D+
BIDD- Bi-directional data cable D-
1000Base-T
Signal Function
BIDB+ Bi-directional data cable B+
BIDB- Bi-directional data cable B-
BIDA+ Bi-directional data cable A+
BIDD+ Bi-directional data cable D+