Ethernet Connection
The connection to the Ethernet bus is made via an enclosed RJ45 connector (a Western plug).
The cable should be CAT5 or CAT5e cable.
Standard patch cable are also applicable. But this combination doesn't fulfill the corresponding class of protection.
Cabling
Connection via hub or switch
Connect the PC's network card to the hub using a standard Ethernet cable, and connect the hub, again using a standard Ethernet cable, to the Fieldbus Box. Connection via a switch is done in the same way.
Direct connection between PC with Ethernet card and B900
To connect the PC directly to the Fieldbus Box, you must use an Ethernet cable in which the pairs of cores have been crossed (a crossover cable).
Pin assignment of the RJ45 connector
|
PIN |
Signal |
Description |
|---|---|---|
|
1 |
TD + |
Transmit Data + |
|
2 |
TD - |
Transmit Data - |
|
3 |
RD + |
Receive Data + |
|
4 |
- |
reserved |
|
5 |
- |
reserved |
|
6 |
RD - |
Receive Data - |
|
7 |
- |
reserved |
|
8 |
- |
reserved |
Note: There is no standardized color setting for the wires!