Siemens SIMATIC NET PROFIBUS Owner's Manual page 136

Passive Components for RS-485 Networks
Connecting Up the LAN Cable
Connect up the LAN cable to the bus connector with order number
6ES7 972-0B.11 ... as follows:
1. Strip the LAN cable as shown in Figure 4-16 using the FastConnect stripping
tool (sizes and lengths are shown in the table on the rear of the tool).
6XV1 830-0EH10
Figure 4-16
2. Open the casing of the bus connector by undoing the screws and removing the
cover.
3. Insert the green and red cores in the screw terminal as shown in Figure 4-17.
Make sure that you always connect the same cores to the same terminal A or B
(for example terminal A is always connected to green and terminal B always to
red).
4. Press the cable sheath between the two clips. This secures the cable.
5. Screw the green and red cores tight in the screw terminal.
LAN cable attachment for
first and last station on the
1
bus
1
: The LAN cable must always be connected up on the left-hand side.
Figure 4-17
6. Fasten the cover again with the screws.
Make sure that the cable shield makes good contact with the shield clamp.
4-38
6XV1 830-3FH10
7.5 9
6
Cable Stripped for Connection to Bus Connector (6ES7 972-0B.11 ...)
A B A B
Connecting the LAN Cable to the Bus Connector (6ES7 972-0B.11 ...)
7.5 9
16 6
LAN cable attachment for all
further stations on the bus
A B A B
PROFIBUS Networks SIMATIC NET
6GK1970-5CA20-0AA1 Release 2 05/2000