System Sensor RR1 User Manual
Page 2

Figure 2. RR1 module with 4-wire smoke detectors:
Figure 1. RR1 module with 2-wire smoke detectors:
OPTIONAL CLASS A WIRING
EOL RESISTOR
SPECIFIED BY
PANEL
MANUFACTURER
EOL POWER
SUPERVISION
RELAY (SHOWN
ENERGIZED)
A77-716 12/24V
POWER
TO
DETECTORS
The power reversal relay module does not provide supervision.
All supervision is provided by the interconnected control unit.
POWER REVERSAL
RELAY MODULE (RR1)
CONTINUOUS
BELL/
ALARM
OUTPUT
UL LISTED
CONTROL
PANEL
INITIATING
LOOP
+
+
+
T1
RED
BLK
BLUE
ORG
PURPLE
YELLOW
BROWN
WHITE
T2
T8
T6
T3
T5
T4
T7
–
–
–
P
W
R
A
U
X
P
W
R
A
U
X
+
+
–
A
A
NC
C
NO
+
INITIATING
LOOP
+
–
A
A
NC
C
NO
}
To auxiliary power/detector power/IAC/Bell
output or any UL listed regulated power supply
listed for fire protective signaling use.
(polarity shown with panel in alarm).
EOL
+
+
–
A
+
RA400Z
A
-
+
–
+
+
–
A
+
A
-
RA400Z
+
–
P
W
R
P
W
R
CONTINUOUS
BELL/
ALARM
OUTPUT
UL LISTED
CONTROL
PANEL
INITIATING
LOOP
+
+
T1
RED
BLK
BLUE
ORG
PURPLE
YELLOW
BROWN
WHITE
T2
T8
T6
T3
T5
T4
T7
–
+
–
–
Not
Used
Not
Used
The power reversal relay module does not provide supervision.
All supervision is provided by the interconnected control unit.
POWER REVERSAL
RELAY MODULE (RR1)
To auxiliary power/IAC/Bell output or
any UL listed regulated power supply
listed for fire protective signaling use.
(polarity shown with panel in alarm).
A78-2336-10
A78-2336-09
M500-12-00
2
I56-1168-02
NOTE: If your panel configuration does not match any of the following wiring diagrams, please contact System Sensor
technical services at 1-800-SENSOR2 for assistance
NOTE: If optional Class A wiring is used, second power reversal relay module (RR1) must be added to enable concurrent
loop polarity reversal.