85
Appendix C: Specifications
Auxiliary relays
(resistive loads)
Must be connected to a listed power limited source of supply. Terminals are
labelled ALARM, TROUBLE, SUPV and AUX.
Common Alarm Form C, 1 A max, 28 VDC
Common Supv Form C, 1 A max, 28 VDC
Common Trouble Form C, 1 A max, 28 VDC
Aux Relay Form C, 1 A max, 28 VDC
Unfiltered supply
(full wave rectified)
Power limited / Unregulated / Special Application
1.7A Max, 21.3 VDC to 42.00 VDC
Minimum Load 5mA
Battery Type 24VDC Gel Cell/Sealed lead acid – 10AH to 26AH
Charging capability 10AH to 26AH
Protection 10A on board (F1) slow blow micro fuse
Ground Fault Circuit Less than 3.3 kΩ will generate a ground fault.
Compliance System Model MR-2320 Series Control Unit - Fire Alarm, for
Releasing services
System Type Local Auxiliary (using MR-2300-PR)
Type of Service A, M, WF, SS
Type of Signalling Non-Coded
Applicable Standards NFPA 12, 12A, 12B, 12, 15, 16, 70, 72,
UL-864 Rev. 9, ULC S-524, ULC S-527-11
Table 12 MR-2320 System Modules and Annunciators
MR-2320 System Modules and Annunciators
MR-2306-R6
Relay adder
module
Must be connected to a listed power-limited source of supply
Contact rating FormC/ 28VDC per contact / 1A resistive load max, zoned
Current consumption standby 0mA, alarm 80mA
MR-2300-A
Input Class A
Converter
module
Standby 0mA / alarm 0mA
MR-2300-NC2
Output Class A
Converter
module
Standby 0mA / alarm 0mA
Table 11 MR-2320 Series Specifications (Continued)
MR-2320 Series Fire Control Panel Chassis
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