Siemens SIMATIC 870 V2 Quick Start Manual page 27

Computer unit-control unit connecting cable
For data exchange in the decentralized design, connect the remote module and the host
module with the up to 20 meters long green connecting cable.
Caution
Do not open the plug of the connecting cable and do not undo the connecting cable.
Otherwise the HF properties of the connecting cable will become irreversibly altered. Perfect
functioning is then no longer guaranteed.
Figure 4-1
Features
Connector type
Connector design
Panel PC 870 V2
QuickStart, Edition 03/2004, A5E00299738
Female connector
for connecting to
operating unit
Cable for connecting control unit and computer unit
Cable connector at the computer unit
15pol. Sub-D male connector
45° angle
Technical specifications
Male connector for
connecting to
computing unit
Cable connector at the control unit
15pol. Sub-D jack plug
straight
4.3 Options
4-5