Power repeater / power supply according to IEC 61158-2
FOUNDATION FieldbusPower supply, connections and operating
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Subject to reasonable modifications due to technical advances.
Copyright Fuchs, Printed in Germany
Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
The following illustration shows the operating components of power repeaters without
an intrinsically safe interface
Here also the rule applies that the field bus terminator must be turned on the host
side if the power repeater represents the last instrument in the bus segment.
The position of Switch S2 must be observed in the case of these power repeaters as
well (see
7.5.2
Operating components for field bus power supply
The field bus power supplies do not have any operating components.
The KLD2-STR-1.24.400.IEC and KLD2-STR-NI1.13.225.IEC power supplies have
an integrated field bus terminator that cannot be turned off on the field side.
The power repeater has a permanently integrated field bus terminator
on the field side that cannot be turned off.
If a power supply is used on a bus segment, it must always be con-
nected at the end of a bus segment.
Switch S1
Switch S1
Switch S2
1 = bus terminaton on
0 = bus termination off
I = power supply
II = no power supply
