Field Wiring
48
Figure 32: Quad Loop Terminal Connections - Class B
Notes:
• All power limited circuits must use type FPL, FPLR, or FPLP power limited cable.
• Loop wiring: maximum loop resistance is 40 ohms total. These lines are power-limited and fully
supervised.
Conventional Heat Sensors
and Manual Pull Stations
2 Pair
F
LEGEND
Addressable Smoke Sensor
with Standard Analog Base
Addressable Thermal Sensor
with Standard Analog Base
Conventional Smoke
Sensor
Addressable Manual
Pull Station
Combination
Horn/Strobe
Addressable
Monitor Module
(Wire Class B only)
Addressable Supvr.
Output Module
End-Of-Line-Resistor
TWO
WIRES
S
H
S
C
s
C
s
C
s
F
F
H
H
S
S
H
C
s
C
s
F
M
M
TWISTED PAIR WIRE
TWISTED PAIR WIRE
M
ANALOG
LOOP 2
B
A
ANALOG
LOOP 1
+
-
+
-
4-WIRE
RESETTABLE
SUPPLY
+
+
+
-
-
-
INDICATING
CIRCUIT
NAC 0
FX-2000N
MAIN FIRE ALARM BOARD
ALCN-792MISO QUAD LOOP
ADDER MODULE
S
S
B
A
+
-
+
-
ANALOG
LOOP 4
B
A
ANALOG
LOOP 3
+
-
+
-
S
S
B
A
+
-
+
-
ALCN-792D DAUGHTER BOARD
SO
SO
This board is mounted over the ALCN-792MISO
loop adder module to provide four adder loops
total.
Wire loops 3 and 4 in the same manner as loops
1 and 2.
