
Guidelines for Installing Networked Automation Systems in Buildings
7-29
SIMATIC NET Twisted-Pair and Fiber-Optic Networks
C79000-G8976-C125-02
7.9 Fitting Twisted Pair Connectors
General
To maintain the excellent EMC and transmission characteristics of the twisted-pair
cabling system, connectors must be fitted with extreme care following the
installation instructions exactly.
How to fit 9-pin and 15-pin connectors is explained in detail on the following pages.
Note
Fit the sub-D connectors only to the 2x2 Industrial Twisted-Pair standard cable.
The cable clamp used for contacting the shield is designed for the diameter of this
cable.
These sub-D connectors are not suitable for fitting to Industrial Ethernet FC
cables.
9-Pin Sub-D Connector
Figure 7-7 shows all the components of a 9-Pin sub-D connector
Copper
band
Connector casing
Cable clamp
Cable clamp screw
Cover
Connector insert with
four screw
terminals
Cover screw
Figure 7-7 Industrial Twisted Pair Sub-D Connector (9-pin) for Assembly on Site
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