Onicon System-10 Installation Manual page 10

Open Collector Sinking or Dry Contact:
This type of output refers to an open collector switch configured in a current sinking
arrangement or a dry contact switch (see Fig. 4 and 5). Set the selector switch, S1 to Sink.
In either case, the switch must be rated for at least 20mA at 20 VDC.
Fig. 4
Fig. 5
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System-10-MOD Network Interface Installation Guide 08/16 - 0653-13 / 18321
ONICON BTU
Meter
Di3 In (+)
Di3 In (-)
ONICON BTU
Meter
Di3 In (+)
Di3 In (-)
Page 10