Festo CPX-FB11 Manual page 41

1. Installation
1
Screening con
nection, cable
clip
2
Only connected
capacitively
3
CPX field bus
node
4
Pin assignment
in the socket
Fig. 1/7: Festo sub−D socket, pin assignment and screening/shield connection
Festo P.BE−CPX−FB11−EN en 0306a
1
2
3
Please note
The cable clip in the Festo sub−D socket is connected inter
nally only capacitively with the metallic housing of the
sub−D socket. This is to prevent equalising currents flowing
through the screening of the field bus cable (Fig. 1/7).
With this plug, contact with the screening cable is made via
the cable clip. This connects the incoming and outgoing cable
screening. With a 5−core cable, you can therefore cut off the
screening cores.
X X
BF PS
PL
SF
M
4
1−27