RJ45 and UTP pinouts |
| The RJ45 connector is used for several functions from UTP
networking , Basic Rate ISDN , Primary ISDN and 2Mb leased line presentation .
Each use is detailed as follows. |
| The cable connectors and jacks that are most commonly used with CAT5 UTP cables are RJ45. The RJ simply means Registered Jack and the 45 designation specifies the pin numbering scheme. The connector is attached to the cable and the jack is the device that the connector plugs into, whether it is in the wall, the network interface card in the computer, or the hub. |
| RJ45 Connector |
|
Gigabit |
100BaseT |
|
| 1 |
White (Orange) |
TxA+ |
Tx |
| 2 |
Orange |
TxA- |
Tx |
| 3 |
White(Green) |
Rx+ |
Rx |
| 4 |
Blue |
Tx |
|
| 5 |
White(blue) |
Tx |
|
| 6 |
Green |
Rx- |
Rx |
| 7 |
White (Brown) |
Rx |
|
| 8 |
Brown |
Rx |
|
|
|
| Crossover cable for gigabit (and 100baseT ) 1->3 , 2->6 , 3->1 , 4->7, 5->8 , 6->2 , 7->4 , 8->5 . |
| RJ45 Connector |
Colours |
Usage |
Crossover end |
|
| 1 |
White (Orange) |
TxA+ |
3 |
| 2 |
Orange |
TxA- |
6 |
| 3 |
White(Green) |
Rx+ |
1 |
| 4 |
Blue |
Tx |
7 |
| 5 |
White(blue) |
Tx |
8 |
| 6 |
Green |
Rx- |
2 |
| 7 |
White (Brown) |
Rx |
4 |
| 8 |
Brown |
Rx |
5 |
|
| |
10/100BaseT |
| The only time you cross connections in 10/100BaseT is when you connect two Ethernet devices directly together without a hub.
This can be two computers connected without a hub, or two hubs via standard Ethernet ports in the hubs. Then you need a "cross-over" patch cable, which crosses the transmit and receive pairs, the orange and green pairs in normal wiring.
In a cross-over cable, one end is normal, and the other end has the cross-over configuration. Remember you can only network two computers together with Cat5 cable. To add extra PC's to your network you will require a hub. |
| |
Other common wiring practices |
|
| |
CYCLADES
Terminal server pinouts for console cables |
| RJ45 |
Colour |
RJ45 |
Colour |
Use |
D-Type
9 Pin |
|
D-Type
25 Pin |
|
| 1 |
Blue |
8 |
Green |
RTS |
|
7 |
Green |
|
4 |
Green |
| 2 |
Wh/blue |
7 |
Brown |
DTR |
|
4 |
Brown |
|
20 |
Brown |
| 3 |
Orange |
6 |
Wh/Green |
TxD |
|
3 |
Wh/Green |
|
2 |
Wh/Green |
| 4 |
Wh/Orange |
4 |
Wh/Orange |
Gnd |
|
5 |
Wh/Orange |
|
7 |
Wh/Orange |
| 5 |
Green |
1 |
Wh/Brown |
CTS |
|
8 |
Wh/Brown |
|
20 |
Wh/Brown |
| 6 |
Wh/Green |
3 |
Orange |
RxD |
|
2 |
Orange |
|
3 |
Orange |
| 7 |
Brown |
2 |
Wh/Blue |
DCD |
|
1 |
Wh/Blue |
|
6+8 |
Wh/Blue |
| 8 |
Wh/Brown |
5 |
Blue |
DSR |
|
6 |
Blue |
|
5 |
Blue |
| Cyclades end |
Router end |
N.C. |
|
9 |
|
|
|
|
|
| |
| |
Orckit and Martis 120 Ohm presentation.
|
 |
| RJ45 PLUG |
DIRECTION |
G.703 - 120 Ohm |
|
To MCP |
| PIN |
COLOUR |
ORKIT 15 Pin |
MARTIS 9 Pin |
|
ORKIT 9 Pin |
|
| 1 |
WHITE |
TX |
-> |
1 |
1 |
|
1 |
| 2 |
ORANGE |
TX |
-> |
9 |
2 |
|
6 |
|
| 4 |
WHITE |
<- |
RX |
3 |
4 |
|
3 |
| 5 |
BLUE |
<- |
RX |
11 |
5 |
|
8 |
|
|
| The Orckit 9 Pin referred to above is the Main
cable pair connector and is included here in case I forget to put it somewhere
else !!!! |
G.704 9-Pin
| PIN # |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
| Signal |
Rx D |
Rx D |
Rx Gnd |
Tx D |
Tx D |
Tx Gnd |
|
|
Ground |
ESSENTIALLY FOR RJ45 CONNECTION (4W) PINS 1+2 = RX AND PINS 4+5 ARE TX
MARTIS also uses this scheme 1&2 = output and 4&5 = input |
