ADC SG-1 Manuel D’Utilisation
2-3
Table 2-1. RJ-45 Pin-Outs
shows the pin-outs for straight-through and cross-connect cabling.
Figure 2-1. Straight-Through and Cross-Over Cable Pin-Outs
MDI Pin Number
MDI-X Pin Number
Signal
a
a.NC = no connection.
Symbol
Direction
1
3
Transmit Data (+)
TX+ (TX0+)
Out(Bidirect)
2
6
Transmit Data (-)
TX-(TX0-)
Out(Bidirect)
3
1
Receive Data (+)
RX+(TX1+)
In(Bidirect)
4
4
NC
(TX2+)
(Bidirect)
5
5
NC
(TX2-)
(Bidirect)
6
2
Receive Data (-)
RX-(TX1-)
In(Bidirect)
7
7
NC
(TX3-)
(Bidirect)
8
8
NC
(TX3+)
(Bidirect)
case
case
Chassis Ground
Cable jack
Cable jack
Cable jack
Cable jack
Receive
Receive
Transmit
Transmit
Transmit
Transmit
Straight-through cable
Cross-over cable
3
6
3
6
3
6
3
6
1
2
1
2
1
2
1
2
MDI-X port
(data network device)
MDI port
(data network device)
MDI port
(management card)
MDI port
(management card)
3
6
1
2
3
6
1
2
3
6
1
2
3
6
1
2
Receive
Receive