Specifications

Field Wiring
18
Indicating Circuit Wiring
The MR-2320 Series Fire Alarm supports Class B or Style Y and Class A Style Z wiring for its indicating circuits.
Each circuit is supervised by a 3.9KΩ EOL resistor or active EOL module. Each indicating circuit provides up to 1.7
A, 5 A maximum total if no auxiliaries are used.
Figure 12: Indicating circuit – Class B or Style Y wiring
Figure 13: Indicating circuit –Class A or Style Z wiring
- SIG 1 +
STYLE Y
WIRING
STYLE Y
WIRING
INDICATING
CIRCUIT - 1
INDICATING
CIRCUIT - 2
BELL STROBE 3.9K 1/2 WATT ELR
INDICATING
CIRCUIT #1
INDICATING
CIRCUIT #2
HORN
MR-2320 Panel
- SIG 2 +
BELL
STROBE
HORN
+
-
STYLE Y
WIRING
STYLE Y
WIRING
INDICATING
CIRCUIT #1
INDICATING
CIRCUIT #2
INDICATING
CIRCUIT 1
INDICATING
CIRCUIT 2
MR-2300-NC2 CLASS A
CONVERTER MODULE
MR-2320 Panel
BLK RED
BLK RED
-SIG1 OUT+-SIG2 OUT+
-SIG1 RET+-SIG2 RET+
+
-
SIG 1SIG 2