Normally Closed, Two Resistor
Loop Resistance
Short
1k
2k
Open Circuit
This circuit provides a high degree of supervision and detects both short and open circuit fault
conditions. Use this circuit in high security applications.
Normally Open, One Resistor
Loop Resistance
Short
1k
Open Circuit
RBH Access Technologies Inc.
State
Trouble
Restore
Alarm
Trouble
Table 9
State
Alarm
Restore
Trouble
Table 10
Chapter 3
Input & Output Connections
™
Integra32
Hardware Guide
13