Figure 33 Quad Loop Terminal Connections - Class B - Mircom FLeXNet FX-MNS-6000 Installation And Operation Manual

Figure 33 Quad Loop Terminal Connections - Class B

ALCN-792MISO QUAD LOOP
ADDER MODULE
+
ANALOG
-
LOOP 1
+
-
S
S
+
-
ANALOG
LOOP 2 +
-
MD-871A
MAIN FIRE ALARM BOARD
+
4-WIRE
RESETTABLE
-
SUPPLY
+
+
INDICATING
NAC 0
CIRCUIT
-
-
ALCN-792D DAUGHTER BOARD
ANALOG
LOOP 3
ANALOG
LOOP 4
i
All power limited circuits must use type FPL, FPLR, or FPLP power limited cable.
Note:
Loop wiring: maximum loop resistance is 40 ohms total. These lines are power-
limited and fully supervised.
TWISTED PAIR WIRE
S S
F
TWISTED PAIR WIRE
SO
M
H
F
S
H
C
s
F
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
S
1 and 2.
S
+
-
+
-
Conventional Heat Sensors
M
and Manual Pull Stations
2 Pair
C
C
C C
s
s s
s
TWO WIRES
S
H H
LEGEND
Addressable Smoke Sensor
Combination
with Standard Analog Base
Horn/Strobe
Addressable Thermal Sensor
with Standard Analog Base
Addressable
M
Monitor Module
Conventional Smoke
(Wire Class B only)
Sensor
SO Addressable Supvr.
Addressable Manual
Output Module
Pull Station
F
46