Siemens SIMATIC NET PROFIBUS manual Connecting Up the LAN Cable

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
7.5	9

6

6XV1 830-3FH10
7.5	9
16	6

Figure 4-16 Cable Stripped for Connection to Bus Connector (6ES7 972-0B.11 ...)

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	LAN cable attachment for all
first and last station on the	further stations on the bus
bus1

A B A BA B A B

1: The LAN cable must always be connected up on the left-hand side.

Figure 4-17 Connecting the LAN Cable to the Bus Connector (6ES7 972-0B.11 ...)

6.Fasten the cover again with the screws.

Make sure that the cable shield makes good contact with the shield clamp.

4-38	PROFIBUS Networks SIMATIC NET
	6GK1970-5CA20-0AA1 Release 2 05/2000