Cable Distances and Power
35
NO and NC Input
Inputs
The wiring of supervised inputs is shown in the next two figures. Note that the
resistor network is different for NO and NC switches.
Normally Open (NO) Wiring
Normally Closed (NC) Wiring
NOTE
To comply with UL requirements, use shielded, minimum 22 AWG stranded,
twisted pair cable for monitor points, DSMs, and REXs. Use Belden 9462 or
equivalent.
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