750 XTR Series
System Features
22
System manual | Version: 2.0.0
3.1.5 System Contacts
3.1.5.1 Data Contacts
The data contacts have the following function:
1. Forwarding of the system supply to subsequent I/O modules
2. Communication between head station and I/O modules
Figure 8: Data Contacts
3.1.5.2 Power Jumper Contacts
The field power supply is distributed in the I/O system via the power jumper contacts. The
power supply for the field side is routed through the power jumper contacts. This happens
automatically when the respective I/O module is snapped on.
The power jumper contact are designed as blade contacts on the left side and as touch-
proof spring contacts on the right side.
I/O modules must not be arranged in a sequence if they are not mechanically compatible.
In addition to mechanical compatibility (power jumper contacts), electrical compatibility
(schematic circuit diagram / technical data) must also be verified in each specific case.
Figure 9: Examples for the Arrangement of Power Jumper Contacts (Blade/Spring)
