Beacon Power Supply Installation Instructions
2.8.2012
52-296 Rev B05
Page 12 of 27
AlarmSaf
65A Industrial Way, Wilmington, MA 01887 978 658 6717 www.alarmsaf.com
3.7 FAI Input Terminals
The FAI input connection for the BNx000 is made through TB3. The FAI input allows complete
flexibility in connection options:
Normally Open Contact (switching positive voltage)
Normally Open Contact (switching DC common)
Normally Closed Contact (Fail-Safe)
Open collector
Isolated or non-isolated voltage input
Reverse Polarity voltage input
Latching Input
There are six terminals on the BNx000 FAI input:
Terminal
Description
Use
V+
Auxiliary Voltage Output
An internal voltage source for use with dry
contacts or open collectors
L+
Positive FAI Activation Terminals
These terminals are the positive input/return for
the FAI loop. Only one is required for activation of
the BNx000. The second is for continuing the loop
for activating other devices or BNx000 supplies.
Polarity is shown for activation of the FAI input
L+
L-
Common FAI Activation Terminals
These terminals are the common input/return for
the FAI loop
L-
V-
Auxiliary Voltage Common
Common or return for the internal voltage source
See Appendix A for FAI input connection examples.
JP3
U1
F3
E
D
FAI
BAT
REV
L+
L-
V+
V-
DC1
FAI
INPUT
V-
L-
L+
V+
12
24
VOLTAGE
SELECT
Figure 3.7.1
