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UNC100 Axiom Hardware Manual V1.1
RBH Access Technologies Inc.
Page
24
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25
This circuit provides a high degree of supervision and detects both short and open circuit fault
conditions. Use this circuit in high security applications.
This circuit type is used where normally open and normally closed contacts are used in the same loop.
For ULC-S319-05
III
compliance, all wiring into the panel’s cabinet must enter through metal conduit.
Also be sure to mount the panel in a protected area.
Normally Closed, Two Resistor
Loop Resistance
State
Short
Trouble
1k
Restore
2k
Alarm
Open Circuit
Trouble
Normally Open, One Resistor
Loop Resistance
State
Short
Alarm
1k
Restore
Open Circuit
Trouble
Normally Open, Two Resistor
Loop Resistance
State
Short
Trouble
1k
Alarm
2k
Restore
Open Circuit
Trouble
Normally Open And Normally
Closed, One Resistor
Loop Resistance
State
Short
Alarm
1k
Restore
Open Circuit
Alarm