Fieldbus Power Hub,Motherboard for Gateway and Power Supply Modules
Installation and Commissioning
2
016-
06
19
Connecting the Trunk
The motherboard is connected to the trunk line via designated screw or spring terminals.
Connecting the Diagnostic Bus
The motherboard is connected to the diagnostic bus via plug-in screw or spring terminals on
fixed circuit board connectors.
Each motherboard has 2 identical diagnostic bus terminals facing each other with inverted
connections.
Trunk Connection with Screw Terminal
+
S
-
Segment -
S
Shield connection
Trunk Connection with Spring Terminal
+
S
-
Segment -
S
Shield connection
Diagnostic Bus Connection with Screw Terminal
Alarm
Alarm signal lines
+
Diagnostic bus +
-
Diagnostic bus -
−
+
S
+ - S
Alarm
+
-
RS485
+
-
