Innotech Genesis V4 System - Manual (Page 96)

Installation Instructions for Innotech Genesis Systems
Edition 011100
A-15
The Genesis II has links that allow the screen connection of the RS485 Comms cable to be
disconnected from the Common of the Digital Controller. Therefore, the screen(s) of the
RS485 cable(s) can be joined in the Comms terminals of the Digital Controllers and still be
isolated if only the four outer links are fitted. This is shown in Figure A-14 with the screen
earthed at Digital Controller Number 2 because it has six links fitted.
Any of the Digital Controllers can be selected as the one that is used to earth the screen, but
it is best to choose the Digital Controller that will provide the most effective earth.
Figure A-14. Genesis II Non-Isolated Comms.
Only four outer
links fitted.
Screen is not
earthed.
Only four outer
links fitted.
Screen is not
earthed.
Only four outer
links fitted.
Screen is not
earthed.
Six outer links
fitted. Screen is
earthed via
Terminal 2.
Screen 1 2
Connect Screen
End
Connection
89 90 91 92 93
Screen 1 2
Connect Screen
Looping
Connection
89 90 91 92 93
Screen 1 2
Connect Screen
Looping
Connection
89 90 91 92 93
Screen 1 2
Connect Screen
End
Connection
89 90 91 92 93