13
4.0 System Components, Sub-
Assemblies & Accessories
4.1 Main Fire Control Panel
Model Description
MR-2312-DDR
Twelve-Zone Fire Alarm Control Panel with
LCD display and dialer (red door, black box).
12 Class B (Style B) Initiating circuits, and four
Power Limited Class B (Style Y) Indicating
circuits (up to 1.70 amperes each, 5 amperes
total). Two six zone MR-2300-A Input Class
A Converter adder modules may be used for
Class A (Style D) wiring of Initiating circuits.
One MR-2300-NC4 Output Class A
Converter adder module may be used for
Class A (Style Z) wiring of the Indicating
circuits. The MR-2312-DDR contains
Common Alarm, Common Supervisory &
Common Trouble Relays, auxiliary alarm relay
(disconnectable), an RS-485 Interface for
Remote Annunciators and a Resettable Four
Wire Smoke Detector Power Supply. The unit
has a dialer on the main board. Used with BA-
110 (10 ampere-hour) (Sota Enertech model
SA12120) batteries (two are required).
MR-2306-DDR
Six-Zone Fire Alarm Control Panel with LED
display and dialer (Red enclosure). Six Class
B (Style B) Initiating circuits, and two Power
Limited Class B (Style Y) Indicating circuits
(up to1.70 amperes each, 5 amperes total).
One six zone MR-2300-A Input Class A
converter adder module may be used for
Class A (Style D) wiring of Initiating circuits.
One MR-2300-NC2 Output Class A
Converter adder module may be used for
Class A (Style Z) wiring of the Indicating
circuits. The MR-2306-DDR contains
Common Alarm, Common Supervisory &
Common Trouble Relays, auxiliary alarm relay
(disconnectable), an RS-485 Interface for
Remote Annunciators and a Resettable Four
Wire Smoke Detector Power Supply. The unit
has a dialer on main board. Used with BA-110
(10 ampere-hour) (Sota Enertech model
SA12120) batteries (two required).
MR-2306-DR
Same as the MR-2306-DDR except without
dialer.