Installation Guide
FPP-RNAC-8A-4C | Operation and Installation Guide | 
16  Bosch Security Systems, Inc. | 8/09 | F01U025431-02
Figure 11:  Wiring the NAC outputs and EOL 
O
U
T
P
U
T
4
O
U
T
P
U
T
3
O
U
T
P
U
T
2
O
U
T
P
U
T
1
A+
B+
B-
B+
A+
B+
B-
B+
A+
B+
B-
B+
A+
B+
B-
B+
N
NNN
N
N
EOL
REF
1
2
3
4
1  1 K to 20 K 
2  EOL* 
3  Class B 
4  Class A 
*  EOL supplied by control panel manufacturer (Bosch P/N: 
25899) 
3.7.2 Auxiliary Circuits 
The FPP-RNAC-8A-4C can be configured to supply 
constant auxiliary power through its NAC outputs. 
Reverse polarity connections of some 
notification appliances might not be 
detected by the FPP-RNAC-8A-4C NAC 
supervision. Ensure that the notification 
appliances are connected properly and 
tested before installation is completed. 
Use DIP Switch S1 positions 3, 4, 5, and 6 (refer to 
Figure 12) to make the output always active. When 
the output is configured as always active, the output 
is unsupervised and no EOL is needed. 
3.7.3  EOL Reference Programming 
Add a resistor that matches the value of the EOL 
used in the notification appliance circuit. This must be 
in the range of 1 kΩ to 20 kΩ. If no resistor is present, 
the RNAC defaults to the value of 2.2 kΩ. 
Figure 12:  Auxiliary Power Configuration 
SYNC 2
SYNC 1
SYNC 0
POWER 4
POWER 3
POWER 2
POWER 1
CNTRL 2
AC DELAY 1
AC DELAY 0
OPTION
ADDRESS
SYNC 2
SYNC 1
SYNC 0
NAC  4
NAC  3
NAC  2
NAC  1
CNTRL AL L
AC DELAY 1
AC DELAY 0
4
3
2
1
OPTION
ADDRESS
OFF ON
S1
S2
1
2
3
4
5
0
1
2
3
4
5
6
0
1
2
3
4
5
6
1  Configure SYNC pattern 
2  Configure outputs for NAC or power supply 
3  Input control 
4  AC delay setting 
5  Option address bus 










