5 Installation
5.3 Interfaces
30
HMI/PLC XV-102
08/2016 MN04802004Z-EN
www.eaton.com
5.3.2
Preparation of cables with D-Sub connector
The design of the bus cabling is an essential factor for reliable operation and electromagnetic compat-
ibility (EMC).
Wiring requirements
The cables must be screened.
The cable screen must consist of a copper braid.
The cable screen must be terminated to the connector shell with a low-impedance bond across a
large area. This is achieved by:
Using metal or metallized connector housings with a strap for strain relief.
The strap must be screw fastened with the connector.
Connecting the cable
screen
1
Insulate the cable end so that approx. 3 cm of screen braid is exposed.
2
Fold back the screen braid over the cable sheath.
3
Attach heat-shrink tubing approx. 3 cm in length over the folded screen braid or use a rubber
grommet.
5…8 mm of the screen braid must be exposed at the cable end.
The folded screen braid end must be covered by the heat-shrink tubing or the rubber grommet.
4
Fit the D-Sub connector to the cable end:
The exposed metal screen braid must be clamped to the connector casing with the cable
clamp.
Fig.. 8 Connecting the cable screen
30 mm
5…8 mm
1
2
3
