26
5.0 Appendix A:
Power Supply and Battery Calculations
Ò
See
6.0 Appendix B: ULC Listed Compatible Smoke Detectors on page 28
and
7.0 Appendix C: UL Listed Compatible Devices on page 31
for other compatible
devices.
Total Current Requirement:
ALARM (
B
)______ Amps. (Value obtained from column
B
)
Battery Capacity Requirement:
Battery (AH) = (
[STANDBY (
A
) ______ ] x [(24,60 or 90 Hours) ___ ]
)
+
(
[ALARM (
B
) ______ ] x [Alarm in Hr.] _____
)
= (
C
) ______AH
Battery Selection:
Multiply (
C
) by 1.20 to derate battery.
IMPORTANT NOTICE
The main AC branch circuit connection for Fire Alarm Control Panel must provide a dedicated continuous power without provision of any disconnect
devices. Use #12 AWG wire with 600-volt insulation and proper over-current circuit protection that complies with the local codes. Refer to
3.0 Technical
Specifications on page 23
for specifications.
POWER REQUIREMENTS (ALL CURRENTS ARE IN AMPERES)
Model Number
Description
Qty
Standby
Total
Standby
Alarm
Total
Alarm
MR-2900
Fire Alarm Control Unit (includes
MR-2931, MR-2905, MR-2902
X
0.092
= 0.107
=
MR-2900
Unique LED’s
X
0.005
= n/a
=
MR-2910
Network Communication Module
X
0.005
= 0.005
=
MR-2938
Conventional Input Circuit Module
X
0.018
= 0.101
=
MR-2929
Addressable Input Circuit Module
X
0.050
=
0.050
=
MR-2909
Addressable Input Circuit Module
X
0.001
= 0.001
=
MR-2928
Conventional Input Circuit Module
X
0.014
= 0.094
=
MR-2919
Addressable Input Circuit Module
X
0.005
= 0.005
=
MR-2614
LED Annunciator
X
0.020
= 0.155
=
MR-2622
Annunciator Strip
X
0.005
= 0.125
=
MR-2644
LCD Annunciator
X
0.030
= 0.070
=
MR-2900-CITY
City Card
X
0.020
=
0.315
(reverse polarity mode)
0.035
(in alarm (+ load - 65mA for
3 circuits)
=
MR-2900-DACT
Digital Communication Module
X
0.040
= 0.060
=
MR-2109-3
Digiquad Module
X
0.008
= 0.0008
=
MR-2944
Annunciator
X
0.075
= 0.075
=
MR-2915
LED Driver Card
X
0.001
= 0.010
=
MR-2920
Strip Printer
X
0.125
= 0.800
when printing
=
MR-D1010-R1
Fibre Optic Modem
X
0.075
=
=
MR-D1010-R2
Fibre Optic Modem
X
0.150
=
=
MR-2690
Isolation Module
X
0.010
=
=
Two-Wire Smoke Detectors
X
š
=
=
Four-Wire Smoke Detectors
X
š
=
=
Signal Load (bells, horns, strobes, and etc.)
X
š
=
=
Auxiliary Power Supply for Annunciators, etc.
=
=
Total currents (Add above currents)
STANDBY
(
A
)
ALARM
(
B
)