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14.0 Appendix C: Specifications
Table 12 MR-2300 LCD Series Specifications
MR-2300 LCD Fire Control Panel Chassis
General Digital Signal Processor (DSP) based design. Fully configurable using front
panel LCD display with Password Access.
Indicating (NAC)
Circuits
4 supervised Style Z (Class B) indicating circuits, configured as strobes or
audibles. Terminals are labeled SIG.
Power limited / Regulated 24 VDC FWR / 1.7 A @ 49 C per circuit
Initiating Circuits 12 supervised Style B (Class B) initiating circuits, configurable (normal or
verified). Terminals are labeled DET. Compatibility ID A
Power limited / 19 VDC reg. / 3 mA for detectors / 0.15 Vp-p ripple / 40 mA max
(alarm short)
Aux supply (non
resettable)
Power limited / 22.3 VDC regulated / 500 mA max
4-wire smoke supply
(resettable)
Power limited / 22.3 VDC regulated / 300 mA max
RS-485 Connection For Remote Annunciators. Terminals are labelled RS485.
Electrical ratings AC line voltage 120 VAC 60 Hz 3 amps \ 240 VAC 50 Hz 1.5 A
(primary)
Power Supply Rating 6 amps maximum (secondary)
Max power allowed • 5 A
• 1.7 A (aux power unfiltered if used)
• 0.5 A (aux power filtered if used)
• 0.3 A (resettable auxiliary power if used)
If no auxiliaries are used the max power is 5 A.
Current consumption Standby: 283 mA
Alarm: 560 mA
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 / 24 VDC unfiltered / 1.7 A max at 49 C
Ground fault
impedance
2 kΩ
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