FAI Input Connection Methods
2.8.2012
52-296 Rev B05
Page 23 of 27
AlarmSaf
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APPENDIX A, PAGE 2
FAI Input Connection Methods (continued)
"Open collector" connection
JP3
TB3
E
D
FAI
BAT
REV
L+
L-
V+
V-
FAI
INPUT
V-
L-
L+
V+
EXTERNAL POWER -
OPEN
COLLECTOR
JP3
TB3
E
D
FAI
BAT
REV
L+
L-
V+
V-
FAI
INPUT
V-
L-
L+
V+
EXTERNAL POWER -
EXTERNAL POWER +
OPEN
COLLECTOR
Internal source
External source
NAC connection
JP3
TB3
E
D
FAI
BAT
REV
L+
L-
V+
V-
FAI
INPUT
V-
L-
L+
V+
FROM NAC LOOP
TO NAC LOOP
+
+
NAC LOOP POLARITEIS SHOWN IN THE
ALARM CONDITION
JP3
TB3
E
D
FAI
BAT
REV
L+
L-
V+
V-
FAI
INPUT
V-
L-
L+
V+
FROM NAC LOOP
TO NAC LOOP
+
+
NAC LOOP POLARITEIS SHOWN IN THE
ALARM CONDITION
NOTE FAI JUMPER
LOCATION
DC polarity reversal
DC polarity reversal with sync
