Quatech INTERBUS S Network Card User Manual


 
INTERBUS S / Buscoupler
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6
When using the supply module 750-601/602, the field supply from the bus coupler is
interrupted. From that point a new power supply connection is necessary to provide DC
to any additional I/O modules.
WARNING!
The ground ( earth) field side contact should be disconnected when testing the isolation.
Otherwise the results could be wrong or even the module could be destroyed.