Section Three Power Supplies; The Ac Primary Power Input; The Mps-24A Or Mps-24Ae Main Power Supply - Notifier AM2020 User Manual
Fire alarm control panel
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Also See for AM2020:
- User manual (269 pages) ,
- Operation and installation manual (14 pages) ,
- Manual (12 pages)
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Section 3.1 The AC Primary Power Input
The AM2020/AFP1010 requires primary AC power. Connection to the light and power service must be on a
dedicated branch circuit and the wiring for this circuit must be installed in conduit. The switch for this circuit must
be labeled "Fire Alarm Circuit Control". Access to the switch must be limited to authorized personnel and the
location of the switch must be identified inside of the AM2020/AFP1010 cabinet door. No other equipment may
be powered from the fire alarm circuit. The AC circuit wire run must run continuously, without disconnect devices,
from the power source to the Fire Alarm Control Panel (FACP). Overcurrent protection for this circuit must comply
with Article 760 of the National Electrical Code (NEC) as well as local codes. Use 12 AWG (3.25 mm²) wire with
600 volt insulation for this circuit. Use Tables 3.1-1 and 3.1-2 to calculate the total amount of current, in amps,
that the AC service must be capable of supplying to the system.
D
e
v
c i
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T
y
A
P
S
6 -
R
A
A
3 -
0
A
A
1 -
0
0
A /
A
M
a
n i
P
o
w
r e
(
M
P
S
2 -
4
D
e
v
c i
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T
A
P
S
6 -
A
A
3 -
0
A
A
1 -
0
0
E
A /
A
M
a
n i
P
o
w
r e
(
M
P
S
2 -
4
Section 3.2 The MPS-24A or MPS-24AE Main Power Supply
The Main Power Supply (MPS-24A or MPS-24AE) provides up to 3.0 amps of filtered current for operating
the system in standby (non-fire alarm) and up to 6.0 amps during fire alarms. The MPS-24A or MPS-24AE
contains battery charging circuitry and a 1-amp filtered output for powering 4-wire smoke detectors. Each
MPS-24A or MPS-24AE also provides filtered, non-resettable 24V DC required for powering ACS
Annunciator modules. If a voltmeter and ammeter are required on the MPS-24A or MPS-24AE, order the
MPM-2 Main Power Meter.
Note: The battery charging circuitry on the MPS-24A can only operate under the control of the CPU-1010/2020,
an XPP-1, or an MPS-TR. Without one of these controlling devices, the batteries will not be charged.
Installation 15088: K 3/21/01
Section Three
Power Supplies
p
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#
f o
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s
[
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[
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1 -
2
0
[
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[
1
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S
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Table 3.1-1 120 VAC Fire Alarm Circuit
#
f o
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p
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D
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R
[
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E
[
]
1 -
2
0
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[
1
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Table 3.1-2 220/240 VAC Fire Alarm Circuit
M
u
t l
p i
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b
y
C
r u
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t n
X
X
X
1
X
A
C
B
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t n
R
C
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M
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p i
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b
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A
X
X
X
X
A
C
B
a r
n
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h
C
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R
T
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2
5 .
1
0 .
8 .
5
1
8 .
1
8 .
e
q
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m
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1
2 .
0
5 .
0
9 .
0
9 .
0
9 .
e
q
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d
=
A
m
s
p
s
1-33
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